diff --git a/call-init-proxy-objects.patch b/call-init-proxy-objects.patch new file mode 100644 index 0000000..ec3497b --- /dev/null +++ b/call-init-proxy-objects.patch @@ -0,0 +1,37 @@ +From 7ae211a01b085d0bde54bd13b887ce8f9d57c2b4 Mon Sep 17 00:00:00 2001 +From: Florian Weimer +Date: Tue, 22 Aug 2023 13:56:25 +0200 +Subject: [PATCH] elf: Do not run constructors for proxy objects + +Otherwise, the ld.so constructor runs for each audit namespace +and each dlmopen namespace. + +(cherry picked from commit f6c8204fd7fabf0cf4162eaf10ccf23258e4d10e) +--- + elf/dl-init.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/elf/dl-init.c b/elf/dl-init.c +index 5b0732590f..ba4d2fdc85 100644 +--- a/elf/dl-init.c ++++ b/elf/dl-init.c +@@ -25,10 +25,14 @@ + static void + call_init (struct link_map *l, int argc, char **argv, char **env) + { ++ /* Do not run constructors for proxy objects. */ ++ if (l != l->l_real) ++ return; ++ + /* If the object has not been relocated, this is a bug. The + function pointers are invalid in this case. (Executables do not +- need relocation, and neither do proxy objects.) */ +- assert (l->l_real->l_relocated || l->l_real->l_type == lt_executable); ++ need relocation.) */ ++ assert (l->l_relocated || l->l_type == lt_executable); + + if (l->l_init_called) + /* This object is all done. */ +-- +2.42.0 + diff --git a/dtors-reverse-ctor-order.patch b/dtors-reverse-ctor-order.patch new file mode 100644 index 0000000..3e058ad --- /dev/null +++ b/dtors-reverse-ctor-order.patch @@ -0,0 +1,834 @@ +From a3189f66a5f2fe86568286fa025fa153be04c6c0 Mon Sep 17 00:00:00 2001 +From: Florian Weimer +Date: Fri, 8 Sep 2023 12:32:14 +0200 +Subject: [PATCH] elf: Always call destructors in reverse constructor order + (bug 30785) + +The current implementation of dlclose (and process exit) re-sorts the +link maps before calling ELF destructors. Destructor order is not the +reverse of the constructor order as a result: The second sort takes +relocation dependencies into account, and other differences can result +from ambiguous inputs, such as cycles. (The force_first handling in +_dl_sort_maps is not effective for dlclose.) After the changes in +this commit, there is still a required difference due to +dlopen/dlclose ordering by the application, but the previous +discrepancies went beyond that. + +A new global (namespace-spanning) list of link maps, +_dl_init_called_list, is updated right before ELF constructors are +called from _dl_init. + +In dl_close_worker, the maps variable, an on-stack variable length +array, is eliminated. (VLAs are problematic, and dlclose should not +call malloc because it cannot readily deal with malloc failure.) +Marking still-used objects uses the namespace list directly, with +next and next_idx replacing the done_index variable. + +After marking, _dl_init_called_list is used to call the destructors +of now-unused maps in reverse destructor order. These destructors +can call dlopen. Previously, new objects do not have l_map_used set. +This had to change: There is no copy of the link map list anymore, +so processing would cover newly opened (and unmarked) mappings, +unloading them. Now, _dl_init (indirectly) sets l_map_used, too. +(dlclose is handled by the existing reentrancy guard.) + +After _dl_init_called_list traversal, two more loops follow. The +processing order changes to the original link map order in the +namespace. Previously, dependency order was used. The difference +should not matter because relocation dependencies could already +reorder link maps in the old code. + +The changes to _dl_fini remove the sorting step and replace it with +a traversal of _dl_init_called_list. The l_direct_opencount +decrement outside the loader lock is removed because it appears +incorrect: the counter manipulation could race with other dynamic +loader operations. + +tst-audit23 needs adjustments to the changes in LA_ACT_DELETE +notifications. The new approach for checking la_activity should +make it clearer that la_activty calls come in pairs around namespace +updates. + +The dependency sorting test cases need updates because the destructor +order is always the opposite order of constructor order, even with +relocation dependencies or cycles present. + +There is a future cleanup opportunity to remove the now-constant +force_first and for_fini arguments from the _dl_sort_maps function. + +Fixes commit 1df71d32fe5f5905ffd5d100e5e9ca8ad62 ("elf: Implement +force_first handling in _dl_sort_maps_dfs (bug 28937)"). + +Reviewed-by: DJ Delorie +(cherry picked from commit 6985865bc3ad5b23147ee73466583dd7fdf65892) +--- + NEWS | 7 ++ + elf/dl-close.c | 113 +++++++++++++++++---------- + elf/dl-fini.c | 152 +++++++++++++------------------------ + elf/dl-init.c | 16 ++++ + elf/dso-sort-tests-1.def | 19 ++--- + elf/tst-audit23.c | 44 ++++++----- + include/link.h | 4 + + sysdeps/generic/ldsodefs.h | 4 + + 8 files changed, 186 insertions(+), 173 deletions(-) + +diff --git a/elf/dl-close.c b/elf/dl-close.c +index b887a44888..ea62d0e601 100644 +--- a/elf/dl-close.c ++++ b/elf/dl-close.c +@@ -138,30 +138,31 @@ _dl_close_worker (struct link_map *map, bool force) + + bool any_tls = false; + const unsigned int nloaded = ns->_ns_nloaded; +- struct link_map *maps[nloaded]; + +- /* Run over the list and assign indexes to the link maps and enter +- them into the MAPS array. */ ++ /* Run over the list and assign indexes to the link maps. */ + int idx = 0; + for (struct link_map *l = ns->_ns_loaded; l != NULL; l = l->l_next) + { + l->l_map_used = 0; + l->l_map_done = 0; + l->l_idx = idx; +- maps[idx] = l; + ++idx; + } + assert (idx == nloaded); + +- /* Keep track of the lowest index link map we have covered already. */ +- int done_index = -1; +- while (++done_index < nloaded) ++ /* Keep marking link maps until no new link maps are found. */ ++ for (struct link_map *l = ns->_ns_loaded; l != NULL; ) + { +- struct link_map *l = maps[done_index]; ++ /* next is reset to earlier link maps for remarking. */ ++ struct link_map *next = l->l_next; ++ int next_idx = l->l_idx + 1; /* next->l_idx, but covers next == NULL. */ + + if (l->l_map_done) +- /* Already handled. */ +- continue; ++ { ++ /* Already handled. */ ++ l = next; ++ continue; ++ } + + /* Check whether this object is still used. */ + if (l->l_type == lt_loaded +@@ -171,7 +172,10 @@ _dl_close_worker (struct link_map *map, bool force) + acquire is sufficient and correct. */ + && atomic_load_acquire (&l->l_tls_dtor_count) == 0 + && !l->l_map_used) +- continue; ++ { ++ l = next; ++ continue; ++ } + + /* We need this object and we handle it now. */ + l->l_map_used = 1; +@@ -198,8 +202,11 @@ _dl_close_worker (struct link_map *map, bool force) + already processed it, then we need to go back + and process again from that point forward to + ensure we keep all of its dependencies also. */ +- if ((*lp)->l_idx - 1 < done_index) +- done_index = (*lp)->l_idx - 1; ++ if ((*lp)->l_idx < next_idx) ++ { ++ next = *lp; ++ next_idx = next->l_idx; ++ } + } + } + +@@ -219,44 +226,65 @@ _dl_close_worker (struct link_map *map, bool force) + if (!jmap->l_map_used) + { + jmap->l_map_used = 1; +- if (jmap->l_idx - 1 < done_index) +- done_index = jmap->l_idx - 1; ++ if (jmap->l_idx < next_idx) ++ { ++ next = jmap; ++ next_idx = next->l_idx; ++ } + } + } + } +- } + +- /* Sort the entries. We can skip looking for the binary itself which is +- at the front of the search list for the main namespace. */ +- _dl_sort_maps (maps, nloaded, (nsid == LM_ID_BASE), true); ++ l = next; ++ } + +- /* Call all termination functions at once. */ +- bool unload_any = false; +- bool scope_mem_left = false; +- unsigned int unload_global = 0; +- unsigned int first_loaded = ~0; +- for (unsigned int i = 0; i < nloaded; ++i) ++ /* Call the destructors in reverse constructor order, and remove the ++ closed link maps from the list. */ ++ for (struct link_map **init_called_head = &_dl_init_called_list; ++ *init_called_head != NULL; ) + { +- struct link_map *imap = maps[i]; ++ struct link_map *imap = *init_called_head; + +- /* All elements must be in the same namespace. */ +- assert (imap->l_ns == nsid); +- +- if (!imap->l_map_used) ++ /* _dl_init_called_list is global, to produce a global odering. ++ Ignore the other namespaces (and link maps that are still used). */ ++ if (imap->l_ns != nsid || imap->l_map_used) ++ init_called_head = &imap->l_init_called_next; ++ else + { + assert (imap->l_type == lt_loaded && !imap->l_nodelete_active); + +- /* Call its termination function. Do not do it for +- half-cooked objects. Temporarily disable exception +- handling, so that errors are fatal. */ +- if (imap->l_init_called) ++ /* _dl_init_called_list is updated at the same time as ++ l_init_called. */ ++ assert (imap->l_init_called); ++ ++ if (imap->l_info[DT_FINI_ARRAY] != NULL ++ || imap->l_info[DT_FINI] != NULL) + _dl_catch_exception (NULL, _dl_call_fini, imap); + + #ifdef SHARED + /* Auditing checkpoint: we remove an object. */ + _dl_audit_objclose (imap); + #endif ++ /* Unlink this link map. */ ++ *init_called_head = imap->l_init_called_next; ++ } ++ } ++ ++ ++ bool unload_any = false; ++ bool scope_mem_left = false; ++ unsigned int unload_global = 0; ++ ++ /* For skipping un-unloadable link maps in the second loop. */ ++ struct link_map *first_loaded = ns->_ns_loaded; + ++ /* Iterate over the namespace to find objects to unload. Some ++ unloadable objects may not be on _dl_init_called_list due to ++ dlopen failure. */ ++ for (struct link_map *imap = first_loaded; imap != NULL; imap = imap->l_next) ++ { ++ if (!imap->l_map_used) ++ { + /* This object must not be used anymore. */ + imap->l_removed = 1; + +@@ -267,8 +295,8 @@ _dl_close_worker (struct link_map *map, bool force) + ++unload_global; + + /* Remember where the first dynamically loaded object is. */ +- if (i < first_loaded) +- first_loaded = i; ++ if (first_loaded == NULL) ++ first_loaded = imap; + } + /* Else imap->l_map_used. */ + else if (imap->l_type == lt_loaded) +@@ -404,8 +432,8 @@ _dl_close_worker (struct link_map *map, bool force) + imap->l_loader = NULL; + + /* Remember where the first dynamically loaded object is. */ +- if (i < first_loaded) +- first_loaded = i; ++ if (first_loaded == NULL) ++ first_loaded = imap; + } + } + +@@ -476,10 +504,11 @@ _dl_close_worker (struct link_map *map, bool force) + + /* Check each element of the search list to see if all references to + it are gone. */ +- for (unsigned int i = first_loaded; i < nloaded; ++i) ++ for (struct link_map *imap = first_loaded; imap != NULL; ) + { +- struct link_map *imap = maps[i]; +- if (!imap->l_map_used) ++ if (imap->l_map_used) ++ imap = imap->l_next; ++ else + { + assert (imap->l_type == lt_loaded); + +@@ -690,7 +719,9 @@ _dl_close_worker (struct link_map *map, bool force) + if (imap == GL(dl_initfirst)) + GL(dl_initfirst) = NULL; + ++ struct link_map *next = imap->l_next; + free (imap); ++ imap = next; + } + } + +diff --git a/elf/dl-fini.c b/elf/dl-fini.c +index 9acb64f47c..e201d36651 100644 +--- a/elf/dl-fini.c ++++ b/elf/dl-fini.c +@@ -24,116 +24,68 @@ + void + _dl_fini (void) + { +- /* Lots of fun ahead. We have to call the destructors for all still +- loaded objects, in all namespaces. The problem is that the ELF +- specification now demands that dependencies between the modules +- are taken into account. I.e., the destructor for a module is +- called before the ones for any of its dependencies. +- +- To make things more complicated, we cannot simply use the reverse +- order of the constructors. Since the user might have loaded objects +- using `dlopen' there are possibly several other modules with its +- dependencies to be taken into account. Therefore we have to start +- determining the order of the modules once again from the beginning. */ +- +- /* We run the destructors of the main namespaces last. As for the +- other namespaces, we pick run the destructors in them in reverse +- order of the namespace ID. */ +-#ifdef SHARED +- int do_audit = 0; +- again: +-#endif +- for (Lmid_t ns = GL(dl_nns) - 1; ns >= 0; --ns) +- { +- /* Protect against concurrent loads and unloads. */ +- __rtld_lock_lock_recursive (GL(dl_load_lock)); +- +- unsigned int nloaded = GL(dl_ns)[ns]._ns_nloaded; +- /* No need to do anything for empty namespaces or those used for +- auditing DSOs. */ +- if (nloaded == 0 +-#ifdef SHARED +- || GL(dl_ns)[ns]._ns_loaded->l_auditing != do_audit +-#endif +- ) +- __rtld_lock_unlock_recursive (GL(dl_load_lock)); +- else +- { ++ /* Call destructors strictly in the reverse order of constructors. ++ This causes fewer surprises than some arbitrary reordering based ++ on new (relocation) dependencies. None of the objects are ++ unmapped, so applications can deal with this if their DSOs remain ++ in a consistent state after destructors have run. */ ++ ++ /* Protect against concurrent loads and unloads. */ ++ __rtld_lock_lock_recursive (GL(dl_load_lock)); ++ ++ /* Ignore objects which are opened during shutdown. */ ++ struct link_map *local_init_called_list = _dl_init_called_list; ++ ++ for (struct link_map *l = local_init_called_list; l != NULL; ++ l = l->l_init_called_next) ++ /* Bump l_direct_opencount of all objects so that they ++ are not dlclose()ed from underneath us. */ ++ ++l->l_direct_opencount; ++ ++ /* After this point, everything linked from local_init_called_list ++ cannot be unloaded because of the reference counter update. */ ++ __rtld_lock_unlock_recursive (GL(dl_load_lock)); ++ ++ /* Perform two passes: One for non-audit modules, one for audit ++ modules. This way, audit modules receive unload notifications ++ for non-audit objects, and the destructors for audit modules ++ still run. */ + #ifdef SHARED +- _dl_audit_activity_nsid (ns, LA_ACT_DELETE); ++ int last_pass = GLRO(dl_naudit) > 0; ++ Lmid_t last_ns = -1; ++ for (int do_audit = 0; do_audit <= last_pass; ++do_audit) + #endif +- +- /* Now we can allocate an array to hold all the pointers and +- copy the pointers in. */ +- struct link_map *maps[nloaded]; +- +- unsigned int i; +- struct link_map *l; +- assert (nloaded != 0 || GL(dl_ns)[ns]._ns_loaded == NULL); +- for (l = GL(dl_ns)[ns]._ns_loaded, i = 0; l != NULL; l = l->l_next) +- /* Do not handle ld.so in secondary namespaces. */ +- if (l == l->l_real) +- { +- assert (i < nloaded); +- +- maps[i] = l; +- l->l_idx = i; +- ++i; +- +- /* Bump l_direct_opencount of all objects so that they +- are not dlclose()ed from underneath us. */ +- ++l->l_direct_opencount; +- } +- assert (ns != LM_ID_BASE || i == nloaded); +- assert (ns == LM_ID_BASE || i == nloaded || i == nloaded - 1); +- unsigned int nmaps = i; +- +- /* Now we have to do the sorting. We can skip looking for the +- binary itself which is at the front of the search list for +- the main namespace. */ +- _dl_sort_maps (maps, nmaps, (ns == LM_ID_BASE), true); +- +- /* We do not rely on the linked list of loaded object anymore +- from this point on. We have our own list here (maps). The +- various members of this list cannot vanish since the open +- count is too high and will be decremented in this loop. So +- we release the lock so that some code which might be called +- from a destructor can directly or indirectly access the +- lock. */ +- __rtld_lock_unlock_recursive (GL(dl_load_lock)); +- +- /* 'maps' now contains the objects in the right order. Now +- call the destructors. We have to process this array from +- the front. */ +- for (i = 0; i < nmaps; ++i) +- { +- struct link_map *l = maps[i]; +- +- if (l->l_init_called) +- { +- _dl_call_fini (l); ++ for (struct link_map *l = local_init_called_list; l != NULL; ++ l = l->l_init_called_next) ++ { + #ifdef SHARED +- /* Auditing checkpoint: another object closed. */ +- _dl_audit_objclose (l); ++ if (GL(dl_ns)[l->l_ns]._ns_loaded->l_auditing != do_audit) ++ continue; ++ ++ /* Avoid back-to-back calls of _dl_audit_activity_nsid for the ++ same namespace. */ ++ if (last_ns != l->l_ns) ++ { ++ if (last_ns >= 0) ++ _dl_audit_activity_nsid (last_ns, LA_ACT_CONSISTENT); ++ _dl_audit_activity_nsid (l->l_ns, LA_ACT_DELETE); ++ last_ns = l->l_ns; ++ } + #endif +- } + +- /* Correct the previous increment. */ +- --l->l_direct_opencount; +- } ++ /* There is no need to re-enable exceptions because _dl_fini ++ is not called from a context where exceptions are caught. */ ++ _dl_call_fini (l); + + #ifdef SHARED +- _dl_audit_activity_nsid (ns, LA_ACT_CONSISTENT); ++ /* Auditing checkpoint: another object closed. */ ++ _dl_audit_objclose (l); + #endif +- } +- } ++ } + + #ifdef SHARED +- if (! do_audit && GLRO(dl_naudit) > 0) +- { +- do_audit = 1; +- goto again; +- } ++ if (last_ns >= 0) ++ _dl_audit_activity_nsid (last_ns, LA_ACT_CONSISTENT); + + if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_STATISTICS)) + _dl_debug_printf ("\nruntime linker statistics:\n" +diff --git a/elf/dl-init.c b/elf/dl-init.c +index ba4d2fdc85..ffd05b7806 100644 +--- a/elf/dl-init.c ++++ b/elf/dl-init.c +@@ -21,6 +21,7 @@ + #include + #include + ++struct link_map *_dl_init_called_list; + + static void + call_init (struct link_map *l, int argc, char **argv, char **env) +@@ -42,6 +43,21 @@ call_init (struct link_map *l, int argc, char **argv, char **env) + dependency. */ + l->l_init_called = 1; + ++ /* Help an already-running dlclose: The just-loaded object must not ++ be removed during the current pass. (No effect if no dlclose in ++ progress.) */ ++ l->l_map_used = 1; ++ ++ /* Record execution before starting any initializers. This way, if ++ the initializers themselves call dlopen, their ELF destructors ++ will eventually be run before this object is destructed, matching ++ that their ELF constructors have run before this object was ++ constructed. _dl_fini uses this list for audit callbacks, so ++ register objects on the list even if they do not have a ++ constructor. */ ++ l->l_init_called_next = _dl_init_called_list; ++ _dl_init_called_list = l; ++ + /* Check for object which constructors we do not run here. */ + if (__builtin_expect (l->l_name[0], 'a') == '\0' + && l->l_type == lt_executable) +diff --git a/elf/dso-sort-tests-1.def b/elf/dso-sort-tests-1.def +index 4bf9052db1..61dc54f8ae 100644 +--- a/elf/dso-sort-tests-1.def ++++ b/elf/dso-sort-tests-1.def +@@ -53,21 +53,14 @@ tst-dso-ordering10: {}->a->b->c;soname({})=c + output: b>a>{}b->c->d order). +-# The older dynamic_sort=1 algorithm does not achieve this, while the DFS-based +-# dynamic_sort=2 algorithm does, although it is still arguable whether going +-# beyond spec to do this is the right thing to do. +-# The below expected outputs are what the two algorithms currently produce +-# respectively, for regression testing purposes. ++# relocation(dynamic) dependencies. For both sorting algorithms, the ++# destruction order is the reverse of the construction order, and ++# relocation dependencies are not taken into account. + tst-bz15311: {+a;+e;+f;+g;+d;%d;-d;-g;-f;-e;-a};a->b->c->d;d=>[ba];c=>a;b=>e=>a;c=>f=>b;d=>g=>c +-output(glibc.rtld.dynamic_sort=1): {+a[d>c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[a1;a->a2;a2->a;b->b1;c->a1;c=>a1 +-output(glibc.rtld.dynamic_sort=1): {+a[a2>a1>a>];+b[b1>b>];-b[];%c(a1());}a1>a>];+b[b1>b>];-b[];%c(a1());}a1>a>];+b[b1>b>];-b[];%c(a1());} +Date: Fri, 8 Sep 2023 13:02:06 +0200 +Subject: [PATCH] elf: Remove unused l_text_end field from struct link_map + +It is a left-over from commit 52a01100ad011293197637e42b5be1a479a2 +("elf: Remove ad-hoc restrictions on dlopen callers [BZ #22787]"). + +When backporting commmit 6985865bc3ad5b23147ee73466583dd7fdf65892 +("elf: Always call destructors in reverse constructor order +(bug 30785)"), we can move the l_init_called_next field to this +place, so that the internal GLIBC_PRIVATE ABI does not change. + +Reviewed-by: Carlos O'Donell +Tested-by: Carlos O'Donell +(cherry picked from commit 53df2ce6885da3d0e89e87dca7b095622296014f) +--- + elf/dl-load.c | 2 +- + elf/dl-load.h | 7 ++----- + elf/rtld.c | 6 ------ + elf/setup-vdso.h | 4 ---- + include/link.h | 2 -- + 5 files changed, 3 insertions(+), 18 deletions(-) + +diff --git a/elf/dl-load.c b/elf/dl-load.c +index 9a87fda9c9..2923b1141d 100644 +--- a/elf/dl-load.c ++++ b/elf/dl-load.c +@@ -1253,7 +1253,7 @@ _dl_map_object_from_fd (const char *name, const char *origname, int fd, + + /* Now process the load commands and map segments into memory. + This is responsible for filling in: +- l_map_start, l_map_end, l_addr, l_contiguous, l_text_end, l_phdr ++ l_map_start, l_map_end, l_addr, l_contiguous, l_phdr + */ + errstring = _dl_map_segments (l, fd, header, type, loadcmds, nloadcmds, + maplength, has_holes, loader); +diff --git a/elf/dl-load.h b/elf/dl-load.h +index ecf6910c68..1d5207694b 100644 +--- a/elf/dl-load.h ++++ b/elf/dl-load.h +@@ -83,14 +83,11 @@ struct loadcmd + + /* This is a subroutine of _dl_map_segments. It should be called for each + load command, some time after L->l_addr has been set correctly. It is +- responsible for setting up the l_text_end and l_phdr fields. */ ++ responsible for setting the l_phdr fields */ + static __always_inline void + _dl_postprocess_loadcmd (struct link_map *l, const ElfW(Ehdr) *header, + const struct loadcmd *c) + { +- if (c->prot & PROT_EXEC) +- l->l_text_end = l->l_addr + c->mapend; +- + if (l->l_phdr == 0 + && c->mapoff <= header->e_phoff + && ((size_t) (c->mapend - c->mapstart + c->mapoff) +@@ -103,7 +100,7 @@ _dl_postprocess_loadcmd (struct link_map *l, const ElfW(Ehdr) *header, + + /* This is a subroutine of _dl_map_object_from_fd. It is responsible + for filling in several fields in *L: l_map_start, l_map_end, l_addr, +- l_contiguous, l_text_end, l_phdr. On successful return, all the ++ l_contiguous, l_phdr. On successful return, all the + segments are mapped (or copied, or whatever) from the file into their + final places in the address space, with the correct page permissions, + and any bss-like regions already zeroed. It returns a null pointer +diff --git a/elf/rtld.c b/elf/rtld.c +index a91e2a4471..5107d16fe3 100644 +--- a/elf/rtld.c ++++ b/elf/rtld.c +@@ -477,7 +477,6 @@ _dl_start_final (void *arg, struct dl_start_final_info *info) + GL(dl_rtld_map).l_real = &GL(dl_rtld_map); + GL(dl_rtld_map).l_map_start = (ElfW(Addr)) &__ehdr_start; + GL(dl_rtld_map).l_map_end = (ElfW(Addr)) _end; +- GL(dl_rtld_map).l_text_end = (ElfW(Addr)) _etext; + /* Copy the TLS related data if necessary. */ + #ifndef DONT_USE_BOOTSTRAP_MAP + # if NO_TLS_OFFSET != 0 +@@ -1119,7 +1118,6 @@ rtld_setup_main_map (struct link_map *main_map) + bool has_interp = false; + + main_map->l_map_end = 0; +- main_map->l_text_end = 0; + /* Perhaps the executable has no PT_LOAD header entries at all. */ + main_map->l_map_start = ~0; + /* And it was opened directly. */ +@@ -1211,8 +1209,6 @@ rtld_setup_main_map (struct link_map *main_map) + allocend = main_map->l_addr + ph->p_vaddr + ph->p_memsz; + if (main_map->l_map_end < allocend) + main_map->l_map_end = allocend; +- if ((ph->p_flags & PF_X) && allocend > main_map->l_text_end) +- main_map->l_text_end = allocend; + + /* The next expected address is the page following this load + segment. */ +@@ -1272,8 +1268,6 @@ rtld_setup_main_map (struct link_map *main_map) + = (char *) main_map->l_tls_initimage + main_map->l_addr; + if (! main_map->l_map_end) + main_map->l_map_end = ~0; +- if (! main_map->l_text_end) +- main_map->l_text_end = ~0; + if (! GL(dl_rtld_map).l_libname && GL(dl_rtld_map).l_name) + { + /* We were invoked directly, so the program might not have a +diff --git a/elf/setup-vdso.h b/elf/setup-vdso.h +index 0079842d1f..d92b12a7aa 100644 +--- a/elf/setup-vdso.h ++++ b/elf/setup-vdso.h +@@ -51,9 +51,6 @@ setup_vdso (struct link_map *main_map __attribute__ ((unused)), + l->l_addr = ph->p_vaddr; + if (ph->p_vaddr + ph->p_memsz >= l->l_map_end) + l->l_map_end = ph->p_vaddr + ph->p_memsz; +- if ((ph->p_flags & PF_X) +- && ph->p_vaddr + ph->p_memsz >= l->l_text_end) +- l->l_text_end = ph->p_vaddr + ph->p_memsz; + } + else + /* There must be no TLS segment. */ +@@ -62,7 +59,6 @@ setup_vdso (struct link_map *main_map __attribute__ ((unused)), + l->l_map_start = (ElfW(Addr)) GLRO(dl_sysinfo_dso); + l->l_addr = l->l_map_start - l->l_addr; + l->l_map_end += l->l_addr; +- l->l_text_end += l->l_addr; + l->l_ld = (void *) ((ElfW(Addr)) l->l_ld + l->l_addr); + elf_get_dynamic_info (l, false, false); + _dl_setup_hash (l); +diff --git a/include/link.h b/include/link.h +index 69bda3ed17..c6af095d87 100644 +--- a/include/link.h ++++ b/include/link.h +@@ -253,8 +253,6 @@ struct link_map + /* Start and finish of memory map for this object. l_map_start + need not be the same as l_addr. */ + ElfW(Addr) l_map_start, l_map_end; +- /* End of the executable part of the mapping. */ +- ElfW(Addr) l_text_end; + + /* Default array for 'l_scope'. */ + struct r_scope_elem *l_scope_mem[4]; +-- +2.42.0 + +From d3ba6c1333b10680ce5900a628108507d9d4b844 Mon Sep 17 00:00:00 2001 +From: Florian Weimer +Date: Mon, 11 Sep 2023 09:17:52 +0200 +Subject: [PATCH] elf: Move l_init_called_next to old place of l_text_end in + link map + +This preserves all member offsets and the GLIBC_PRIVATE ABI +for backporting. +--- + include/link.h | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/include/link.h b/include/link.h +index c6af095d87..686813f281 100644 +--- a/include/link.h ++++ b/include/link.h +@@ -254,6 +254,10 @@ struct link_map + need not be the same as l_addr. */ + ElfW(Addr) l_map_start, l_map_end; + ++ /* Linked list of objects in reverse ELF constructor execution ++ order. Head of list is stored in _dl_init_called_list. */ ++ struct link_map *l_init_called_next; ++ + /* Default array for 'l_scope'. */ + struct r_scope_elem *l_scope_mem[4]; + /* Size of array allocated for 'l_scope'. */ +@@ -276,10 +280,6 @@ struct link_map + /* List of object in order of the init and fini calls. */ + struct link_map **l_initfini; + +- /* Linked list of objects in reverse ELF constructor execution +- order. Head of list is stored in _dl_init_called_list. */ +- struct link_map *l_init_called_next; +- + /* List of the dependencies introduced through symbol binding. */ + struct link_map_reldeps + { +-- +2.42.0 + diff --git a/fstat-implementation.patch b/fstat-implementation.patch new file mode 100644 index 0000000..93a2d42 --- /dev/null +++ b/fstat-implementation.patch @@ -0,0 +1,165 @@ +From 551101e8240b7514fc646d1722f8b79c90362b8f Mon Sep 17 00:00:00 2001 +From: Adhemerval Zanella +Date: Mon, 11 Sep 2023 10:25:48 -0300 +Subject: [PATCH] io: Do not implement fstat with fstatat + +AT_EMPTY_PATH is a requirement to implement fstat over fstatat, +however it does not prevent the kernel to read the path argument. +It is not an issue, but on x86-64 with SMAP-capable CPUs the kernel is +forced to perform expensive user memory access. After that regular +lookup is performed which adds even more overhead. + +Instead, issue the fstat syscall directly on LFS fstat implementation +(32 bit architectures will still continue to use statx, which is +required to have 64 bit time_t support). it should be even a +small performance gain on non x86_64, since there is no need +to handle the path argument. + +Checked on x86_64-linux-gnu. +--- + sysdeps/unix/sysv/linux/fstat64.c | 37 +++++++++++++++++++++++-- + sysdeps/unix/sysv/linux/fstatat64.c | 12 ++------ + sysdeps/unix/sysv/linux/internal-stat.h | 31 +++++++++++++++++++++ + 3 files changed, 68 insertions(+), 12 deletions(-) + create mode 100644 sysdeps/unix/sysv/linux/internal-stat.h + +diff --git a/sysdeps/unix/sysv/linux/fstat64.c b/sysdeps/unix/sysv/linux/fstat64.c +index 124384e57f..a291f0825b 100644 +--- a/sysdeps/unix/sysv/linux/fstat64.c ++++ b/sysdeps/unix/sysv/linux/fstat64.c +@@ -19,20 +19,53 @@ + #define __fstat __redirect___fstat + #define fstat __redirect_fstat + #include ++#undef __fstat ++#undef fstat + #include +-#include +-#include ++#include + #include + + int + __fstat64_time64 (int fd, struct __stat64_t64 *buf) + { ++#if !FSTATAT_USE_STATX ++# if XSTAT_IS_XSTAT64 ++# ifdef __NR_fstat ++ /* 64-bit kABI, e.g. aarch64, ia64, powerpc64*, s390x, riscv64, and ++ x86_64. */ ++ return INLINE_SYSCALL_CALL (fstat, fd, buf); ++# elif defined __NR_fstat64 ++# if STAT64_IS_KERNEL_STAT64 ++ /* 64-bit kABI outlier, e.g. alpha */ ++ return INLINE_SYSCALL_CALL (fstat64, fd, buf); ++# else ++ /* 64-bit kABI outlier, e.g. sparc64. */ ++ struct kernel_stat64 kst64; ++ int r = INLINE_SYSCALL_CALL (fstat64, fd, &kst64); ++ if (r == 0) ++ __cp_stat64_kstat64 (buf, &kst64); ++ return r; ++# endif /* STAT64_IS_KERNEL_STAT64 */ ++# endif ++# else /* XSTAT_IS_XSTAT64 */ ++ /* 64-bit kabi outlier, e.g. mips64 and mips64-n32. */ ++ struct kernel_stat kst; ++ int r = INLINE_SYSCALL_CALL (fstat, fd, &kst); ++ if (r == 0) ++ __cp_kstat_stat64_t64 (&kst, buf); ++ return r; ++# endif ++#else /* !FSTATAT_USE_STATX */ ++ /* All kABIs with non-LFS support and with old 32-bit time_t support ++ e.g. arm, csky, i386, hppa, m68k, microblaze, nios2, sh, powerpc32, ++ and sparc32. */ + if (fd < 0) + { + __set_errno (EBADF); + return -1; + } + return __fstatat64_time64 (fd, "", buf, AT_EMPTY_PATH); ++#endif + } + #if __TIMESIZE != 64 + hidden_def (__fstat64_time64) +diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c +index 3509d3ca6d..127c6ff601 100644 +--- a/sysdeps/unix/sysv/linux/fstatat64.c ++++ b/sysdeps/unix/sysv/linux/fstatat64.c +@@ -21,12 +21,10 @@ + #include + #include + #include +-#include + #include + #include +-#include +-#include + #include ++#include + + #if __TIMESIZE == 64 \ + && (__WORDSIZE == 32 \ +@@ -40,11 +38,7 @@ _Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t), + "__blkcnt_t and __blkcnt64_t must match"); + #endif + +-#if (__WORDSIZE == 32 \ +- && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \ +- || defined STAT_HAS_TIME32 \ +- || (!defined __NR_newfstatat && !defined __NR_fstatat64) +-# define FSTATAT_USE_STATX 1 ++#if FSTATAT_USE_STATX + + static inline int + fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf, +@@ -79,8 +73,6 @@ fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf, + + return r; + } +-#else +-# define FSTATAT_USE_STATX 0 + #endif + + /* Only statx supports 64-bit timestamps for 32-bit architectures with +diff --git a/sysdeps/unix/sysv/linux/internal-stat.h b/sysdeps/unix/sysv/linux/internal-stat.h +new file mode 100644 +index 0000000000..e3b0569853 +--- /dev/null ++++ b/sysdeps/unix/sysv/linux/internal-stat.h +@@ -0,0 +1,31 @@ ++/* Internal stat definitions. ++ Copyright (C) 2023 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#include ++#include ++#include ++#include ++ ++#if (__WORDSIZE == 32 \ ++ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \ ++ || defined STAT_HAS_TIME32 \ ++ || (!defined __NR_newfstatat && !defined __NR_fstatat64) ++# define FSTATAT_USE_STATX 1 ++#else ++# define FSTATAT_USE_STATX 0 ++#endif +-- +2.42.0 + diff --git a/getaddrinfo-memory-leak.patch b/getaddrinfo-memory-leak.patch new file mode 100644 index 0000000..b8cc3a8 --- /dev/null +++ b/getaddrinfo-memory-leak.patch @@ -0,0 +1,92 @@ +From ec6b95c3303c700eb89eebeda2d7264cc184a796 Mon Sep 17 00:00:00 2001 +From: Romain Geissler +Date: Mon, 25 Sep 2023 01:21:51 +0100 +Subject: [PATCH] Fix leak in getaddrinfo introduced by the fix for + CVE-2023-4806 [BZ #30843] + +This patch fixes a very recently added leak in getaddrinfo. + +Reviewed-by: Siddhesh Poyarekar +--- + nss/Makefile | 20 ++++++++++++++++++++ + nss/tst-nss-gai-hv2-canonname.c | 3 +++ + sysdeps/posix/getaddrinfo.c | 4 +--- + 3 files changed, 24 insertions(+), 3 deletions(-) + +diff --git a/nss/Makefile b/nss/Makefile +index 8a5126ecf3..668ba34b18 100644 +--- a/nss/Makefile ++++ b/nss/Makefile +@@ -149,6 +149,15 @@ endif + extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os \ + nss_test_gai_hv2_canonname.os + ++ifeq ($(run-built-tests),yes) ++ifneq (no,$(PERL)) ++tests-special += $(objpfx)mtrace-tst-nss-gai-hv2-canonname.out ++endif ++endif ++ ++generated += mtrace-tst-nss-gai-hv2-canonname.out \ ++ tst-nss-gai-hv2-canonname.mtrace ++ + include ../Rules + + ifeq (yes,$(have-selinux)) +@@ -217,6 +226,17 @@ endif + $(objpfx)tst-nss-files-alias-leak.out: $(objpfx)/libnss_files.so + $(objpfx)tst-nss-files-alias-truncated.out: $(objpfx)/libnss_files.so + ++tst-nss-gai-hv2-canonname-ENV = \ ++ MALLOC_TRACE=$(objpfx)tst-nss-gai-hv2-canonname.mtrace \ ++ LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so ++$(objpfx)mtrace-tst-nss-gai-hv2-canonname.out: \ ++ $(objpfx)tst-nss-gai-hv2-canonname.out ++ { test -r $(objpfx)tst-nss-gai-hv2-canonname.mtrace \ ++ || ( echo "tst-nss-gai-hv2-canonname.mtrace does not exist"; exit 77; ) \ ++ && $(common-objpfx)malloc/mtrace \ ++ $(objpfx)tst-nss-gai-hv2-canonname.mtrace; } > $@; \ ++ $(evaluate-test) ++ + # Disable DT_RUNPATH on NSS tests so that the glibc internal NSS + # functions can load testing NSS modules via DT_RPATH. + LDFLAGS-tst-nss-test1 = -Wl,--disable-new-dtags +diff --git a/nss/tst-nss-gai-hv2-canonname.c b/nss/tst-nss-gai-hv2-canonname.c +index d5f10c07d6..7db53cf09d 100644 +--- a/nss/tst-nss-gai-hv2-canonname.c ++++ b/nss/tst-nss-gai-hv2-canonname.c +@@ -21,6 +21,7 @@ + #include + #include + #include ++#include + #include + #include + #include "nss/tst-nss-gai-hv2-canonname.h" +@@ -41,6 +42,8 @@ static void do_prepare (int a, char **av) + static int + do_test (void) + { ++ mtrace (); ++ + __nss_configure_lookup ("hosts", "test_gai_hv2_canonname"); + + struct addrinfo hints = {}; +diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c +index 47f421fddf..531124958d 100644 +--- a/sysdeps/posix/getaddrinfo.c ++++ b/sysdeps/posix/getaddrinfo.c +@@ -1196,9 +1196,7 @@ free_and_return: + if (malloc_name) + free ((char *) name); + free (addrmem); +- if (res.free_at) +- free (res.at); +- free (res.canon); ++ gaih_result_reset (&res); + + return result; + } +-- +2.42.0 + diff --git a/getcanonname-use-after-free.patch b/getcanonname-use-after-free.patch new file mode 100644 index 0000000..94a0b37 --- /dev/null +++ b/getcanonname-use-after-free.patch @@ -0,0 +1,338 @@ +From 00ae4f10b504bc4564e9f22f00907093f1ab9338 Mon Sep 17 00:00:00 2001 +From: Siddhesh Poyarekar +Date: Fri, 15 Sep 2023 13:51:12 -0400 +Subject: [PATCH] getaddrinfo: Fix use after free in getcanonname + (CVE-2023-4806) + +When an NSS plugin only implements the _gethostbyname2_r and +_getcanonname_r callbacks, getaddrinfo could use memory that was freed +during tmpbuf resizing, through h_name in a previous query response. + +The backing store for res->at->name when doing a query with +gethostbyname3_r or gethostbyname2_r is tmpbuf, which is reallocated in +gethosts during the query. For AF_INET6 lookup with AI_ALL | +AI_V4MAPPED, gethosts gets called twice, once for a v6 lookup and second +for a v4 lookup. In this case, if the first call reallocates tmpbuf +enough number of times, resulting in a malloc, th->h_name (that +res->at->name refers to) ends up on a heap allocated storage in tmpbuf. +Now if the second call to gethosts also causes the plugin callback to +return NSS_STATUS_TRYAGAIN, tmpbuf will get freed, resulting in a UAF +reference in res->at->name. This then gets dereferenced in the +getcanonname_r plugin call, resulting in the use after free. + +Fix this by copying h_name over and freeing it at the end. This +resolves BZ #30843, which is assigned CVE-2023-4806. + +Signed-off-by: Siddhesh Poyarekar +(cherry picked from commit 973fe93a5675c42798b2161c6f29c01b0e243994) +--- + nss/Makefile | 15 ++++- + nss/nss_test_gai_hv2_canonname.c | 56 +++++++++++++++++ + nss/tst-nss-gai-hv2-canonname.c | 63 +++++++++++++++++++ + nss/tst-nss-gai-hv2-canonname.h | 1 + + .../postclean.req | 0 + .../tst-nss-gai-hv2-canonname.script | 2 + + sysdeps/posix/getaddrinfo.c | 25 +++++--- + 7 files changed, 152 insertions(+), 10 deletions(-) + create mode 100644 nss/nss_test_gai_hv2_canonname.c + create mode 100644 nss/tst-nss-gai-hv2-canonname.c + create mode 100644 nss/tst-nss-gai-hv2-canonname.h + create mode 100644 nss/tst-nss-gai-hv2-canonname.root/postclean.req + create mode 100644 nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script + +diff --git a/nss/Makefile b/nss/Makefile +index 06fcdc450f..8a5126ecf3 100644 +--- a/nss/Makefile ++++ b/nss/Makefile +@@ -82,6 +82,7 @@ tests-container := \ + tst-nss-test3 \ + tst-reload1 \ + tst-reload2 \ ++ tst-nss-gai-hv2-canonname \ + # tests-container + + # Tests which need libdl +@@ -145,7 +146,8 @@ libnss_compat-inhibit-o = $(filter-out .os,$(object-suffixes)) + ifeq ($(build-static-nss),yes) + tests-static += tst-nss-static + endif +-extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os ++extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os \ ++ nss_test_gai_hv2_canonname.os + + include ../Rules + +@@ -180,12 +182,16 @@ rtld-tests-LDFLAGS += -Wl,--dynamic-list=nss_test.ver + libof-nss_test1 = extramodules + libof-nss_test2 = extramodules + libof-nss_test_errno = extramodules ++libof-nss_test_gai_hv2_canonname = extramodules + $(objpfx)/libnss_test1.so: $(objpfx)nss_test1.os $(link-libc-deps) + $(build-module) + $(objpfx)/libnss_test2.so: $(objpfx)nss_test2.os $(link-libc-deps) + $(build-module) + $(objpfx)/libnss_test_errno.so: $(objpfx)nss_test_errno.os $(link-libc-deps) + $(build-module) ++$(objpfx)/libnss_test_gai_hv2_canonname.so: \ ++ $(objpfx)nss_test_gai_hv2_canonname.os $(link-libc-deps) ++ $(build-module) + $(objpfx)nss_test2.os : nss_test1.c + # Use the nss_files suffix for these objects as well. + $(objpfx)/libnss_test1.so$(libnss_files.so-version): $(objpfx)/libnss_test1.so +@@ -195,10 +201,14 @@ $(objpfx)/libnss_test2.so$(libnss_files.so-version): $(objpfx)/libnss_test2.so + $(objpfx)/libnss_test_errno.so$(libnss_files.so-version): \ + $(objpfx)/libnss_test_errno.so + $(make-link) ++$(objpfx)/libnss_test_gai_hv2_canonname.so$(libnss_files.so-version): \ ++ $(objpfx)/libnss_test_gai_hv2_canonname.so ++ $(make-link) + $(patsubst %,$(objpfx)%.out,$(tests) $(tests-container)) : \ + $(objpfx)/libnss_test1.so$(libnss_files.so-version) \ + $(objpfx)/libnss_test2.so$(libnss_files.so-version) \ +- $(objpfx)/libnss_test_errno.so$(libnss_files.so-version) ++ $(objpfx)/libnss_test_errno.so$(libnss_files.so-version) \ ++ $(objpfx)/libnss_test_gai_hv2_canonname.so$(libnss_files.so-version) + + ifeq (yes,$(have-thread-library)) + $(objpfx)tst-cancel-getpwuid_r: $(shared-thread-library) +@@ -215,3 +225,4 @@ LDFLAGS-tst-nss-test3 = -Wl,--disable-new-dtags + LDFLAGS-tst-nss-test4 = -Wl,--disable-new-dtags + LDFLAGS-tst-nss-test5 = -Wl,--disable-new-dtags + LDFLAGS-tst-nss-test_errno = -Wl,--disable-new-dtags ++LDFLAGS-tst-nss-test_gai_hv2_canonname = -Wl,--disable-new-dtags +diff --git a/nss/nss_test_gai_hv2_canonname.c b/nss/nss_test_gai_hv2_canonname.c +new file mode 100644 +index 0000000000..4439c83c9f +--- /dev/null ++++ b/nss/nss_test_gai_hv2_canonname.c +@@ -0,0 +1,56 @@ ++/* NSS service provider that only provides gethostbyname2_r. ++ Copyright The GNU Toolchain Authors. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#include ++#include ++#include ++#include "nss/tst-nss-gai-hv2-canonname.h" ++ ++/* Catch misnamed and functions. */ ++#pragma GCC diagnostic error "-Wmissing-prototypes" ++NSS_DECLARE_MODULE_FUNCTIONS (test_gai_hv2_canonname) ++ ++extern enum nss_status _nss_files_gethostbyname2_r (const char *, int, ++ struct hostent *, char *, ++ size_t, int *, int *); ++ ++enum nss_status ++_nss_test_gai_hv2_canonname_gethostbyname2_r (const char *name, int af, ++ struct hostent *result, ++ char *buffer, size_t buflen, ++ int *errnop, int *herrnop) ++{ ++ return _nss_files_gethostbyname2_r (name, af, result, buffer, buflen, errnop, ++ herrnop); ++} ++ ++enum nss_status ++_nss_test_gai_hv2_canonname_getcanonname_r (const char *name, char *buffer, ++ size_t buflen, char **result, ++ int *errnop, int *h_errnop) ++{ ++ /* We expect QUERYNAME, which is a small enough string that it shouldn't fail ++ the test. */ ++ if (memcmp (QUERYNAME, name, sizeof (QUERYNAME)) ++ || buflen < sizeof (QUERYNAME)) ++ abort (); ++ ++ strncpy (buffer, name, buflen); ++ *result = buffer; ++ return NSS_STATUS_SUCCESS; ++} +diff --git a/nss/tst-nss-gai-hv2-canonname.c b/nss/tst-nss-gai-hv2-canonname.c +new file mode 100644 +index 0000000000..d5f10c07d6 +--- /dev/null ++++ b/nss/tst-nss-gai-hv2-canonname.c +@@ -0,0 +1,63 @@ ++/* Test NSS query path for plugins that only implement gethostbyname2 ++ (#30843). ++ Copyright The GNU Toolchain Authors. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include "nss/tst-nss-gai-hv2-canonname.h" ++ ++#define PREPARE do_prepare ++ ++static void do_prepare (int a, char **av) ++{ ++ FILE *hosts = xfopen ("/etc/hosts", "w"); ++ for (unsigned i = 2; i < 255; i++) ++ { ++ fprintf (hosts, "ff01::ff02:ff03:%u:2\ttest.example.com\n", i); ++ fprintf (hosts, "192.168.0.%u\ttest.example.com\n", i); ++ } ++ xfclose (hosts); ++} ++ ++static int ++do_test (void) ++{ ++ __nss_configure_lookup ("hosts", "test_gai_hv2_canonname"); ++ ++ struct addrinfo hints = {}; ++ struct addrinfo *result = NULL; ++ ++ hints.ai_family = AF_INET6; ++ hints.ai_flags = AI_ALL | AI_V4MAPPED | AI_CANONNAME; ++ ++ int ret = getaddrinfo (QUERYNAME, NULL, &hints, &result); ++ ++ if (ret != 0) ++ FAIL_EXIT1 ("getaddrinfo failed: %s\n", gai_strerror (ret)); ++ ++ TEST_COMPARE_STRING (result->ai_canonname, QUERYNAME); ++ ++ freeaddrinfo(result); ++ return 0; ++} ++ ++#include +diff --git a/nss/tst-nss-gai-hv2-canonname.h b/nss/tst-nss-gai-hv2-canonname.h +new file mode 100644 +index 0000000000..14f2a9cb08 +--- /dev/null ++++ b/nss/tst-nss-gai-hv2-canonname.h +@@ -0,0 +1 @@ ++#define QUERYNAME "test.example.com" +diff --git a/nss/tst-nss-gai-hv2-canonname.root/postclean.req b/nss/tst-nss-gai-hv2-canonname.root/postclean.req +new file mode 100644 +index 0000000000..e69de29bb2 +diff --git a/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script b/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script +new file mode 100644 +index 0000000000..31848b4a28 +--- /dev/null ++++ b/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script +@@ -0,0 +1,2 @@ ++cp $B/nss/libnss_test_gai_hv2_canonname.so $L/libnss_test_gai_hv2_canonname.so.2 ++su +diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c +index 0356b622be..b2236b105c 100644 +--- a/sysdeps/posix/getaddrinfo.c ++++ b/sysdeps/posix/getaddrinfo.c +@@ -120,6 +120,7 @@ struct gaih_result + { + struct gaih_addrtuple *at; + char *canon; ++ char *h_name; + bool free_at; + bool got_ipv6; + }; +@@ -165,6 +166,7 @@ gaih_result_reset (struct gaih_result *res) + if (res->free_at) + free (res->at); + free (res->canon); ++ free (res->h_name); + memset (res, 0, sizeof (*res)); + } + +@@ -203,9 +205,8 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp, + return 0; + } + +-/* Convert struct hostent to a list of struct gaih_addrtuple objects. h_name +- is not copied, and the struct hostent object must not be deallocated +- prematurely. The new addresses are appended to the tuple array in RES. */ ++/* Convert struct hostent to a list of struct gaih_addrtuple objects. The new ++ addresses are appended to the tuple array in RES. */ + static bool + convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family, + struct hostent *h, struct gaih_result *res) +@@ -238,6 +239,15 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family, + res->at = array; + res->free_at = true; + ++ /* Duplicate h_name because it may get reclaimed when the underlying storage ++ is freed. */ ++ if (res->h_name == NULL) ++ { ++ res->h_name = __strdup (h->h_name); ++ if (res->h_name == NULL) ++ return false; ++ } ++ + /* Update the next pointers on reallocation. */ + for (size_t i = 0; i < old; i++) + array[i].next = array + i + 1; +@@ -262,7 +272,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family, + } + array[i].next = array + i + 1; + } +- array[0].name = h->h_name; + array[count - 1].next = NULL; + + return true; +@@ -324,15 +333,15 @@ gethosts (nss_gethostbyname3_r fct, int family, const char *name, + memory allocation failure. The returned string is allocated on the + heap; the caller has to free it. */ + static char * +-getcanonname (nss_action_list nip, struct gaih_addrtuple *at, const char *name) ++getcanonname (nss_action_list nip, const char *hname, const char *name) + { + nss_getcanonname_r *cfct = __nss_lookup_function (nip, "getcanonname_r"); + char *s = (char *) name; + if (cfct != NULL) + { + char buf[256]; +- if (DL_CALL_FCT (cfct, (at->name ?: name, buf, sizeof (buf), +- &s, &errno, &h_errno)) != NSS_STATUS_SUCCESS) ++ if (DL_CALL_FCT (cfct, (hname ?: name, buf, sizeof (buf), &s, &errno, ++ &h_errno)) != NSS_STATUS_SUCCESS) + /* If the canonical name cannot be determined, use the passed + string. */ + s = (char *) name; +@@ -771,7 +780,7 @@ get_nss_addresses (const char *name, const struct addrinfo *req, + if ((req->ai_flags & AI_CANONNAME) != 0 + && res->canon == NULL) + { +- char *canonbuf = getcanonname (nip, res->at, name); ++ char *canonbuf = getcanonname (nip, res->h_name, name); + if (canonbuf == NULL) + { + __resolv_context_put (res_ctx); +-- +2.42.0 + diff --git a/glibc-disable-gettext-for-c-utf8.patch b/glibc-disable-gettext-for-c-utf8.patch deleted file mode 100644 index aab0f8a..0000000 --- a/glibc-disable-gettext-for-c-utf8.patch +++ /dev/null @@ -1,12 +0,0 @@ -Index: glibc-2.27/intl/dcigettext.c -=================================================================== ---- glibc-2.27.orig/intl/dcigettext.c -+++ glibc-2.27/intl/dcigettext.c -@@ -695,6 +695,7 @@ DCIGETTEXT (const char *domainname, cons - /* If the current locale value is C (or POSIX) we don't load a - domain. Return the MSGID. */ - if (strcmp (single_locale, "C") == 0 -+ || strcmp (single_locale, "C.UTF-8") == 0 - || strcmp (single_locale, "POSIX") == 0) - break; - diff --git a/glibc.changes b/glibc.changes index a7114dc..6074a91 100644 --- a/glibc.changes +++ b/glibc.changes @@ -1,3 +1,51 @@ +------------------------------------------------------------------- +Wed Sep 27 14:08:48 UTC 2023 - Andreas Schwab + +- fstat-implementation.patch: io: Do not implement fstat with fstatat + +------------------------------------------------------------------- +Mon Sep 25 07:58:08 UTC 2023 - Andreas Schwab + +- getaddrinfo-memory-leak.patch: Fix leak in getaddrinfo introduced by the + fix for CVE-2023-4806 (CVE-2023-5156, bsc#1215714, BZ #30884) + +------------------------------------------------------------------- +Mon Sep 18 08:48:59 UTC 2023 - Andreas Schwab + +- getcanonname-use-after-free.patch: getaddrinfo: Fix use after free in + getcanonname (CVE-2023-4806, bsc#1215281, BZ #30843) +- Do not build any cross packages in SLES + +------------------------------------------------------------------- +Wed Sep 13 12:25:56 UTC 2023 - Andreas Schwab + +- no-aaaa-read-overflow.patch: Stack read overflow with large TCP + responses in no-aaaa mode (CVE-2023-4527, bsc#1215280, BZ #30842) + +------------------------------------------------------------------- +Tue Sep 12 12:52:55 UTC 2023 - Andreas Schwab + +- Add systemd to passwd, group and shadow lookups (jsc#PED-5188) + +------------------------------------------------------------------- +Mon Sep 11 09:20:07 UTC 2023 - Andreas Schwab + +- ppc64-flock-fob64.patch: io: Fix record locking contants for powerpc64 + with __USE_FILE_OFFSET64 (BZ #30804) +- libio-io-vtables.patch: libio: Fix oversized __io_vtables +- call-init-proxy-objects.patch: elf: Do not run constructors for proxy + objects +- dtors-reverse-ctor-order.patch: elf: Always call destructors in reverse + constructor order (BZ #30785) + +------------------------------------------------------------------- +Tue Sep 5 11:13:13 UTC 2023 - Andreas Schwab + +- intl-c-utf-8-like-c-locale.patch: intl: Treat C.UTF-8 locale like C + locale (BZ #16621) +- glibc-disable-gettext-for-c-utf8.patch: Removed + +------------------------------------------------------------------- Mon Aug 28 11:56:10 UTC 2023 - Richard Biener - Add cross-ppc64le package diff --git a/glibc.spec b/glibc.spec index 9743132..3d7993c 100644 --- a/glibc.spec +++ b/glibc.spec @@ -96,6 +96,9 @@ ExclusiveArch: do_not_build %define build_cross 1 %undefine _build_create_debug ExcludeArch: %{cross_arch} +%if 0%{?suse_version} < 1600 +ExclusiveArch: do_not_build +%endif %endif %define host_arch %{?cross_cpu}%{!?cross_cpu:%{_target_cpu}} @@ -287,8 +290,6 @@ Patch100: add-locales.patch Patch102: glibc-2.4.90-no_NO.diff # PATCH-FIX-OPENSUSE -- Renames for China Patch103: glibc-2.4-china.diff -# PATCH-FIX-OPENSUSE -- Disable gettext for C.UTF-8 locale -Patch104: glibc-disable-gettext-for-c-utf8.patch ### Network related patches # PATCH-FIX-OPENSUSE Warn about usage of mdns in resolv.conv @@ -307,6 +308,24 @@ Patch1001: cache-amd-legacy.patch Patch1002: cache-intel-shared.patch # PATCH-FIX-UPSTREAM malloc: Enable merging of remainders in memalign, remove bin scanning from memalign (BZ #30723) Patch1003: posix-memalign-fragmentation.patch +# PATCH-FIX-UPSTREAM intl: Treat C.UTF-8 locale like C locale (BZ #16621) +Patch1004: intl-c-utf-8-like-c-locale.patch +# PATCH-FIX-UPSTREAM io: Fix record locking contants for powerpc64 with __USE_FILE_OFFSET64 (BZ #30804) +Patch1005: ppc64-flock-fob64.patch +# PATCH-FIX-UPSTREAM libio: Fix oversized __io_vtables +Patch1006: libio-io-vtables.patch +# PATCH-FIX-UPSTREAM elf: Do not run constructors for proxy objects +Patch1007: call-init-proxy-objects.patch +# PATCH-FIX-UPSTREAM elf: Always call destructors in reverse constructor order (BZ #30785) +Patch1008: dtors-reverse-ctor-order.patch +# PATCH-FIX-UPSTREAM Stack read overflow with large TCP responses in no-aaaa mode (CVE-2023-4527, BZ #30842) +Patch1009: no-aaaa-read-overflow.patch +# PATCH-FIX-UPSTREAM getaddrinfo: Fix use after free in getcanonname (CVE-2023-4806, BZ #30843) +Patch1010: getcanonname-use-after-free.patch +# PATCH-FIX-UPSTREAM Fix leak in getaddrinfo introduced by the fix for CVE-2023-4806 (CVE-2023-5156, BZ #30884) +Patch1011: getaddrinfo-memory-leak.patch +# PATCH-FIX-UPSTREAM io: Do not implement fstat with fstatat +Patch1012: fstat-implementation.patch ### # Patches awaiting upstream approval @@ -524,7 +543,6 @@ library in a cross compilation setting. %patch100 -p1 %patch102 -p1 %patch103 -p1 -%patch104 -p1 %patch304 -p1 %patch306 -p1 @@ -534,6 +552,15 @@ library in a cross compilation setting. %patch1001 -p1 %patch1002 -p1 %patch1003 -p1 +%patch1004 -p1 +%patch1005 -p1 +%patch1006 -p1 +%patch1007 -p1 +%patch1008 -p1 +%patch1009 -p1 +%patch1010 -p1 +%patch1011 -p1 +%patch1012 -p1 %endif %patch2000 -p1 diff --git a/intl-c-utf-8-like-c-locale.patch b/intl-c-utf-8-like-c-locale.patch new file mode 100644 index 0000000..ff9e1c1 --- /dev/null +++ b/intl-c-utf-8-like-c-locale.patch @@ -0,0 +1,39 @@ +From 2897b231a6b71ee17d47d3d63f1112b2641a476c Mon Sep 17 00:00:00 2001 +From: Bruno Haible +Date: Mon, 4 Sep 2023 15:31:36 +0200 +Subject: [PATCH] intl: Treat C.UTF-8 locale like C locale (BZ# 16621) + +The wiki page https://sourceware.org/glibc/wiki/Proposals/C.UTF-8 +says that "Setting LC_ALL=C.UTF-8 will ignore LANGUAGE just like it +does with LC_ALL=C." This patch implements it. + +* intl/dcigettext.c (guess_category_value): Treat C. locale +like the C locale. + +Reviewed-by: Florian Weimer +--- + intl/dcigettext.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/intl/dcigettext.c b/intl/dcigettext.c +index 7886ac9545..27063886d2 100644 +--- a/intl/dcigettext.c ++++ b/intl/dcigettext.c +@@ -1560,8 +1560,12 @@ guess_category_value (int category, const char *categoryname) + 2. The precise output of some programs in the "C" locale is specified + by POSIX and should not depend on environment variables like + "LANGUAGE" or system-dependent information. We allow such programs +- to use gettext(). */ +- if (strcmp (locale, "C") == 0) ++ to use gettext(). ++ Ignore LANGUAGE and its system-dependent analogon also if the locale is ++ set to "C.UTF-8" or, more generally, to "C.", because that's ++ the by-design behaviour for glibc, see ++ . */ ++ if (locale[0] == 'C' && (locale[1] == '\0' || locale[1] == '.')) + return locale; + + /* The highest priority value is the value of the 'LANGUAGE' environment +-- +2.42.0 + diff --git a/libio-io-vtables.patch b/libio-io-vtables.patch new file mode 100644 index 0000000..4b622f4 --- /dev/null +++ b/libio-io-vtables.patch @@ -0,0 +1,51 @@ +From 92201f16cbcfd9eafe314ef6654be2ea7ba25675 Mon Sep 17 00:00:00 2001 +From: Adam Jackson +Date: Fri, 8 Sep 2023 15:55:19 -0400 +Subject: [PATCH] libio: Fix oversized __io_vtables + +IO_VTABLES_LEN is the size of the struct array in bytes, not the number +of __IO_jump_t's in the array. Drops just under 384kb from .rodata on +LP64 machines. + +Fixes: 3020f72618e ("libio: Remove the usage of __libc_IO_vtables") +Signed-off-by: Adam Jackson +Reviewed-by: Florian Weimer +Tested-by: Florian Weimer +(cherry picked from commit 8cb69e054386f980f9ff4d93b157861d72b2019e) +--- + libio/vtables.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/libio/vtables.c b/libio/vtables.c +index 1d8ad612e9..34f7e15f1c 100644 +--- a/libio/vtables.c ++++ b/libio/vtables.c +@@ -20,6 +20,7 @@ + #include + #include + #include ++#include + #include + #include + +@@ -88,7 +89,7 @@ + # pragma weak __wprintf_buffer_as_file_xsputn + #endif + +-const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro = ++const struct _IO_jump_t __io_vtables[] attribute_relro = + { + /* _IO_str_jumps */ + [IO_STR_JUMPS] = +@@ -485,6 +486,8 @@ const struct _IO_jump_t __io_vtables[IO_VTABLES_LEN] attribute_relro = + }, + #endif + }; ++_Static_assert (array_length (__io_vtables) == IO_VTABLES_NUM, ++ "initializer count"); + + #ifdef SHARED + +-- +2.42.0 + diff --git a/no-aaaa-read-overflow.patch b/no-aaaa-read-overflow.patch new file mode 100644 index 0000000..65247872 --- /dev/null +++ b/no-aaaa-read-overflow.patch @@ -0,0 +1,193 @@ +From bd77dd7e73e3530203be1c52c8a29d08270cb25d Mon Sep 17 00:00:00 2001 +From: Florian Weimer +Date: Wed, 13 Sep 2023 14:10:56 +0200 +Subject: [PATCH] CVE-2023-4527: Stack read overflow with large TCP responses + in no-aaaa mode + +Without passing alt_dns_packet_buffer, __res_context_search can only +store 2048 bytes (what fits into dns_packet_buffer). However, +the function returns the total packet size, and the subsequent +DNS parsing code in _nss_dns_gethostbyname4_r reads beyond the end +of the stack-allocated buffer. + +Fixes commit f282cdbe7f436c75864e5640a4 ("resolv: Implement no-aaaa +stub resolver option") and bug 30842. +--- + NEWS | 6 +- + resolv/Makefile | 2 + + resolv/nss_dns/dns-host.c | 2 +- + resolv/tst-resolv-noaaaa-vc.c | 129 ++++++++++++++++++++++++++++++++++ + 4 files changed, 137 insertions(+), 2 deletions(-) + create mode 100644 resolv/tst-resolv-noaaaa-vc.c + +diff --git a/resolv/Makefile b/resolv/Makefile +index 054b1fa36c..2f99eb3862 100644 +--- a/resolv/Makefile ++++ b/resolv/Makefile +@@ -102,6 +102,7 @@ tests += \ + tst-resolv-invalid-cname \ + tst-resolv-network \ + tst-resolv-noaaaa \ ++ tst-resolv-noaaaa-vc \ + tst-resolv-nondecimal \ + tst-resolv-res_init-multi \ + tst-resolv-search \ +@@ -293,6 +294,7 @@ $(objpfx)tst-resolv-res_init-thread: $(objpfx)libresolv.so \ + $(objpfx)tst-resolv-invalid-cname: $(objpfx)libresolv.so \ + $(shared-thread-library) + $(objpfx)tst-resolv-noaaaa: $(objpfx)libresolv.so $(shared-thread-library) ++$(objpfx)tst-resolv-noaaaa-vc: $(objpfx)libresolv.so $(shared-thread-library) + $(objpfx)tst-resolv-nondecimal: $(objpfx)libresolv.so $(shared-thread-library) + $(objpfx)tst-resolv-qtypes: $(objpfx)libresolv.so $(shared-thread-library) + $(objpfx)tst-resolv-rotate: $(objpfx)libresolv.so $(shared-thread-library) +diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c +index c8b77bbc35..119dc9f00f 100644 +--- a/resolv/nss_dns/dns-host.c ++++ b/resolv/nss_dns/dns-host.c +@@ -427,7 +427,7 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat, + { + n = __res_context_search (ctx, name, C_IN, T_A, + dns_packet_buffer, sizeof (dns_packet_buffer), +- NULL, NULL, NULL, NULL, NULL); ++ &alt_dns_packet_buffer, NULL, NULL, NULL, NULL); + if (n >= 0) + status = gaih_getanswer_noaaaa (alt_dns_packet_buffer, n, + &abuf, pat, errnop, herrnop, ttlp); +diff --git a/resolv/tst-resolv-noaaaa-vc.c b/resolv/tst-resolv-noaaaa-vc.c +new file mode 100644 +index 0000000000..9f5aebd99f +--- /dev/null ++++ b/resolv/tst-resolv-noaaaa-vc.c +@@ -0,0 +1,129 @@ ++/* Test the RES_NOAAAA resolver option with a large response. ++ Copyright (C) 2022-2023 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* Used to keep track of the number of queries. */ ++static volatile unsigned int queries; ++ ++/* If true, add a large TXT record at the start of the answer section. */ ++static volatile bool stuff_txt; ++ ++static void ++response (const struct resolv_response_context *ctx, ++ struct resolv_response_builder *b, ++ const char *qname, uint16_t qclass, uint16_t qtype) ++{ ++ /* If not using TCP, just force its use. */ ++ if (!ctx->tcp) ++ { ++ struct resolv_response_flags flags = {.tc = true}; ++ resolv_response_init (b, flags); ++ resolv_response_add_question (b, qname, qclass, qtype); ++ return; ++ } ++ ++ /* The test needs to send four queries, the first three are used to ++ grow the NSS buffer via the ERANGE handshake. */ ++ ++queries; ++ TEST_VERIFY (queries <= 4); ++ ++ /* AAAA queries are supposed to be disabled. */ ++ TEST_COMPARE (qtype, T_A); ++ TEST_COMPARE (qclass, C_IN); ++ TEST_COMPARE_STRING (qname, "example.com"); ++ ++ struct resolv_response_flags flags = {}; ++ resolv_response_init (b, flags); ++ resolv_response_add_question (b, qname, qclass, qtype); ++ ++ resolv_response_section (b, ns_s_an); ++ ++ if (stuff_txt) ++ { ++ resolv_response_open_record (b, qname, qclass, T_TXT, 60); ++ int zero = 0; ++ for (int i = 0; i <= 15000; ++i) ++ resolv_response_add_data (b, &zero, sizeof (zero)); ++ resolv_response_close_record (b); ++ } ++ ++ for (int i = 0; i < 200; ++i) ++ { ++ resolv_response_open_record (b, qname, qclass, qtype, 60); ++ char ipv4[4] = {192, 0, 2, i + 1}; ++ resolv_response_add_data (b, &ipv4, sizeof (ipv4)); ++ resolv_response_close_record (b); ++ } ++} ++ ++static int ++do_test (void) ++{ ++ struct resolv_test *obj = resolv_test_start ++ ((struct resolv_redirect_config) ++ { ++ .response_callback = response ++ }); ++ ++ _res.options |= RES_NOAAAA; ++ ++ for (int do_stuff_txt = 0; do_stuff_txt < 2; ++do_stuff_txt) ++ { ++ queries = 0; ++ stuff_txt = do_stuff_txt; ++ ++ struct addrinfo *ai = NULL; ++ int ret; ++ ret = getaddrinfo ("example.com", "80", ++ &(struct addrinfo) ++ { ++ .ai_family = AF_UNSPEC, ++ .ai_socktype = SOCK_STREAM, ++ }, &ai); ++ ++ char *expected_result; ++ { ++ struct xmemstream mem; ++ xopen_memstream (&mem); ++ for (int i = 0; i < 200; ++i) ++ fprintf (mem.out, "address: STREAM/TCP 192.0.2.%d 80\n", i + 1); ++ xfclose_memstream (&mem); ++ expected_result = mem.buffer; ++ } ++ ++ check_addrinfo ("example.com", ai, ret, expected_result); ++ ++ free (expected_result); ++ freeaddrinfo (ai); ++ } ++ ++ resolv_test_end (obj); ++ return 0; ++} ++ ++#include +-- +2.42.0 + diff --git a/nsswitch.conf b/nsswitch.conf index 7e3ba34..149c359 100644 --- a/nsswitch.conf +++ b/nsswitch.conf @@ -52,9 +52,9 @@ # shadow: db files # group: db files -passwd: compat -group: compat -shadow: compat +passwd: compat systemd +group: compat systemd +shadow: compat systemd # Allow initgroups to default to the setting for group. # initgroups: compat diff --git a/ppc64-flock-fob64.patch b/ppc64-flock-fob64.patch new file mode 100644 index 0000000..55c9b2f --- /dev/null +++ b/ppc64-flock-fob64.patch @@ -0,0 +1,76 @@ +From 434bf72a94de68f0cc7fbf3c44bf38c1911b70cb Mon Sep 17 00:00:00 2001 +From: Aurelien Jarno +Date: Mon, 28 Aug 2023 23:30:37 +0200 +Subject: [PATCH] io: Fix record locking contants for powerpc64 with + __USE_FILE_OFFSET64 + +Commit 5f828ff824e3b7cd1 ("io: Fix F_GETLK, F_SETLK, and F_SETLKW for +powerpc64") fixed an issue with the value of the lock constants on +powerpc64 when not using __USE_FILE_OFFSET64, but it ended-up also +changing the value when using __USE_FILE_OFFSET64 causing an API change. + +Fix that by also checking that define, restoring the pre +4d0fe291aed3a476a commit values: + +Default values: +- F_GETLK: 5 +- F_SETLK: 6 +- F_SETLKW: 7 + +With -D_FILE_OFFSET_BITS=64: +- F_GETLK: 12 +- F_SETLK: 13 +- F_SETLKW: 14 + +At the same time, it has been noticed that there was no test for io lock +with __USE_FILE_OFFSET64, so just add one. + +Tested on x86_64-linux-gnu, i686-linux-gnu and +powerpc64le-unknown-linux-gnu. + +Resolves: BZ #30804. +Co-authored-by: Adhemerval Zanella +Signed-off-by: Aurelien Jarno +--- + io/Makefile | 1 + + io/tst-fcntl-lock-lfs.c | 2 ++ + sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h | 2 +- + 3 files changed, 4 insertions(+), 1 deletion(-) + create mode 100644 io/tst-fcntl-lock-lfs.c + +diff --git a/io/Makefile b/io/Makefile +index 6ccc0e8691..8a3c83a3bb 100644 +--- a/io/Makefile ++++ b/io/Makefile +@@ -192,6 +192,7 @@ tests := \ + tst-fchownat \ + tst-fcntl \ + tst-fcntl-lock \ ++ tst-fcntl-lock-lfs \ + tst-fstatat \ + tst-fts \ + tst-fts-lfs \ +diff --git a/io/tst-fcntl-lock-lfs.c b/io/tst-fcntl-lock-lfs.c +new file mode 100644 +index 0000000000..f2a909fb02 +--- /dev/null ++++ b/io/tst-fcntl-lock-lfs.c +@@ -0,0 +1,2 @@ ++#define _FILE_OFFSET_BITS 64 ++#include +diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h +index f7615a447e..d8a291a331 100644 +--- a/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h ++++ b/sysdeps/unix/sysv/linux/powerpc/bits/fcntl.h +@@ -33,7 +33,7 @@ + # define __O_LARGEFILE 0200000 + #endif + +-#if __WORDSIZE == 64 ++#if __WORDSIZE == 64 && !defined __USE_FILE_OFFSET64 + # define F_GETLK 5 + # define F_SETLK 6 + # define F_SETLKW 7 +-- +2.42.0 +