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Accepting request 1043640 from devel:languages:lua

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OBS-URL: https://build.opensuse.org/request/show/1043640
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/lua54?expand=0&rev=21
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Dominique Leuenberger 2022-12-20 19:19:40 +00:00 committed by Git OBS Bridge
commit f000c8e517
4 changed files with 259 additions and 0 deletions
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7
lua54.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Sun Dec 18 17:55:21 UTC 2022 - Callum Farmer <gmbr3@opensuse.org>
- Added more numbered patches from upstream:
* luabugs8.patch
* luabugs9.patch
------------------------------------------------------------------- -------------------------------------------------------------------
Tue Aug 30 16:40:09 UTC 2022 - Callum Farmer <gmbr3@opensuse.org> Tue Aug 30 16:40:09 UTC 2022 - Callum Farmer <gmbr3@opensuse.org>

2
lua54.spec
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@ -51,6 +51,8 @@ Patch10: luabugs4.patch
Patch11: luabugs5.patch Patch11: luabugs5.patch
Patch12: luabugs6.patch Patch12: luabugs6.patch
Patch13: luabugs7.patch Patch13: luabugs7.patch
Patch14: luabugs8.patch
Patch15: luabugs9.patch
# #
%if "%{flavor}" == "test" %if "%{flavor}" == "test"
BuildRequires: lua54 BuildRequires: lua54

148
luabugs8.patch Normal file
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@ -0,0 +1,148 @@
From a1089b415a3f5c753aa1b40758ffdaf28d5701b0 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Fri, 23 Sep 2022 10:41:16 -0300
Subject: [PATCH] Bug: 'utf8.codes' accepts spurious continuation bytes
---
lutf8lib.c | 27 ++++++++++++++++-----------
testes/utf8.lua | 12 +++++++++++-
2 files changed, 27 insertions(+), 12 deletions(-)
diff --git a/lutf8lib.c b/lutf8lib.c
index e7bf098f6..3a5b9bc38 100644
--- a/src/lutf8lib.c
+++ b/src/lutf8lib.c
@@ -25,6 +25,9 @@
#define MAXUTF 0x7FFFFFFFu
+
+#define MSGInvalid "invalid UTF-8 code"
+
/*
** Integer type for decoded UTF-8 values; MAXUTF needs 31 bits.
*/
@@ -35,7 +38,8 @@ typedef unsigned long utfint;
#endif
-#define iscont(p) ((*(p) & 0xC0) == 0x80)
+#define iscont(c) (((c) & 0xC0) == 0x80)
+#define iscontp(p) iscont(*(p))
/* from strlib */
@@ -65,7 +69,7 @@ static const char *utf8_decode (const char *s, utfint *val, int strict) {
int count = 0; /* to count number of continuation bytes */
for (; c & 0x40; c <<= 1) { /* while it needs continuation bytes... */
unsigned int cc = (unsigned char)s[++count]; /* read next byte */
- if ((cc & 0xC0) != 0x80) /* not a continuation byte? */
+ if (!iscont(cc)) /* not a continuation byte? */
return NULL; /* invalid byte sequence */
res = (res << 6) | (cc & 0x3F); /* add lower 6 bits from cont. byte */
}
@@ -140,7 +144,7 @@ static int codepoint (lua_State *L) {
utfint code;
s = utf8_decode(s, &code, !lax);
if (s == NULL)
- return luaL_error(L, "invalid UTF-8 code");
+ return luaL_error(L, MSGInvalid);
lua_pushinteger(L, code);
n++;
}
@@ -190,16 +194,16 @@ static int byteoffset (lua_State *L) {
"position out of bounds");
if (n == 0) {
/* find beginning of current byte sequence */
- while (posi > 0 && iscont(s + posi)) posi--;
+ while (posi > 0 && iscontp(s + posi)) posi--;
}
else {
- if (iscont(s + posi))
+ if (iscontp(s + posi))
return luaL_error(L, "initial position is a continuation byte");
if (n < 0) {
while (n < 0 && posi > 0) { /* move back */
do { /* find beginning of previous character */
posi--;
- } while (posi > 0 && iscont(s + posi));
+ } while (posi > 0 && iscontp(s + posi));
n++;
}
}
@@ -208,7 +212,7 @@ static int byteoffset (lua_State *L) {
while (n > 0 && posi < (lua_Integer)len) {
do { /* find beginning of next character */
posi++;
- } while (iscont(s + posi)); /* (cannot pass final '\0') */
+ } while (iscontp(s + posi)); /* (cannot pass final '\0') */
n--;
}
}
@@ -226,15 +230,15 @@ static int iter_aux (lua_State *L, int strict) {
const char *s = luaL_checklstring(L, 1, &len);
lua_Unsigned n = (lua_Unsigned)lua_tointeger(L, 2);
if (n < len) {
- while (iscont(s + n)) n++; /* skip continuation bytes */
+ while (iscontp(s + n)) n++; /* go to next character */
}
if (n >= len) /* (also handles original 'n' being negative) */
return 0; /* no more codepoints */
else {
utfint code;
const char *next = utf8_decode(s + n, &code, strict);
- if (next == NULL)
- return luaL_error(L, "invalid UTF-8 code");
+ if (next == NULL || iscontp(next))
+ return luaL_error(L, MSGInvalid);
lua_pushinteger(L, n + 1);
lua_pushinteger(L, code);
return 2;
@@ -253,7 +257,8 @@ static int iter_auxlax (lua_State *L) {
static int iter_codes (lua_State *L) {
int lax = lua_toboolean(L, 2);
- luaL_checkstring(L, 1);
+ const char *s = luaL_checkstring(L, 1);
+ luaL_argcheck(L, !iscontp(s), 1, MSGInvalid);
lua_pushcfunction(L, lax ? iter_auxlax : iter_auxstrict);
lua_pushvalue(L, 1);
lua_pushinteger(L, 0);
diff --git a/testes/utf8.lua b/testes/utf8.lua
index 461e223c7..7472cfd05 100644
--- a/testes/utf8.lua
+++ b/testes/utf8.lua
@@ -97,9 +97,15 @@ do -- error indication in utf8.len
assert(not a and b == p)
end
check("abc\xE3def", 4)
- check("汉字\x80", #("汉字") + 1)
check("\xF4\x9F\xBF", 1)
check("\xF4\x9F\xBF\xBF", 1)
+ -- spurious continuation bytes
+ check("汉字\x80", #("汉字") + 1)
+ check("\x80hello", 1)
+ check("hel\x80lo", 4)
+ check("汉字\xBF", #("汉字") + 1)
+ check("\xBFhello", 1)
+ check("hel\xBFlo", 4)
end
-- errors in utf8.codes
@@ -112,12 +118,16 @@ do
end
errorcodes("ab\xff")
errorcodes("\u{110000}")
+ errorcodes("in\x80valid")
+ errorcodes("\xbfinvalid")
+ errorcodes("αλφ\xBFα")
-- calling interation function with invalid arguments
local f = utf8.codes("")
assert(f("", 2) == nil)
assert(f("", -1) == nil)
assert(f("", math.mininteger) == nil)
+
end
-- error in initial position for offset

102
luabugs9.patch Normal file
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@ -0,0 +1,102 @@
From 1e64c1391f9a14115b5cc82066dbf545ae73ee27 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Tue, 25 Oct 2022 16:44:06 -0300
Subject: [PATCH] Bug: stack overflow with nesting of coroutine.close
---
lcorolib.c | 4 ++--
lstate.c | 3 ++-
ltests.c | 2 +-
lua.h | 2 +-
manual/manual.of | 7 ++++++-
testes/cstack.lua | 26 ++++++++++++++++++++++++++
6 files changed, 38 insertions(+), 6 deletions(-)
diff --git a/lcorolib.c b/lcorolib.c
index 785a1e81a..40b880b14 100644
--- a/src/lcorolib.c
+++ b/src/lcorolib.c
@@ -76,7 +76,7 @@ static int luaB_auxwrap (lua_State *L) {
if (l_unlikely(r < 0)) { /* error? */
int stat = lua_status(co);
if (stat != LUA_OK && stat != LUA_YIELD) { /* error in the coroutine? */
- stat = lua_resetthread(co); /* close its tbc variables */
+ stat = lua_resetthread(co, L); /* close its tbc variables */
lua_assert(stat != LUA_OK);
lua_xmove(co, L, 1); /* move error message to the caller */
}
@@ -172,7 +172,7 @@ static int luaB_close (lua_State *L) {
int status = auxstatus(L, co);
switch (status) {
case COS_DEAD: case COS_YIELD: {
- status = lua_resetthread(co);
+ status = lua_resetthread(co, L);
if (status == LUA_OK) {
lua_pushboolean(L, 1);
return 1;
diff --git a/lstate.c b/lstate.c
index 1ffe1a0f7..4b5c10008 100644
--- a/src/lstate.c
+++ b/src/lstate.c
@@ -343,9 +343,10 @@ int luaE_resetthread (lua_State *L, int status) {
}
-LUA_API int lua_resetthread (lua_State *L) {
+LUA_API int lua_resetthread (lua_State *L, lua_State *from) {
int status;
lua_lock(L);
+ L->nCcalls = (from) ? getCcalls(from) : 0;
status = luaE_resetthread(L, L->status);
lua_unlock(L);
return status;
diff --git a/lua.h b/lua.h
index 219784cc0..bfba4d1e1 100644
--- a/src/lua.h
+++ b/src/lua.h
@@ -153,7 +153,7 @@ extern const char lua_ident[];
LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
LUA_API void (lua_close) (lua_State *L);
LUA_API lua_State *(lua_newthread) (lua_State *L);
-LUA_API int (lua_resetthread) (lua_State *L);
+LUA_API int (lua_resetthread) (lua_State *L, lua_State *from);
LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
diff --git a/testes/cstack.lua b/testes/cstack.lua
index ca76c8729..97afe9fd0 100644
--- a/testes/cstack.lua
+++ b/testes/cstack.lua
@@ -84,6 +84,32 @@ do -- bug in 5.4.0
end
+do -- bug since 5.4.0
+ local count = 0
+ print("chain of 'coroutine.close'")
+ -- create N coroutines forming a list so that each one, when closed,
+ -- closes the previous one. (With a large enough N, previous Lua
+ -- versions crash in this test.)
+ local coro = false
+ for i = 1, 1000 do
+ local previous = coro
+ coro = coroutine.create(function()
+ local cc <close> = setmetatable({}, {__close=function()
+ count = count + 1
+ if previous then
+ assert(coroutine.close(previous))
+ end
+ end})
+ coroutine.yield() -- leaves 'cc' pending to be closed
+ end)
+ assert(coroutine.resume(coro)) -- start it and run until it yields
+ end
+ local st, msg = coroutine.close(coro)
+ assert(not st and string.find(msg, "C stack overflow"))
+ print("final count: ", count)
+end
+
+
do
print("nesting of resuming yielded coroutines")
local count = 0