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Rev SUSE:SLE-12:Update/1 Md5 032718ca9b5dc36fc8846032a969848d 2015-02-10 15:57:35 leonardocf None
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OBS User leonardocf 2015-02-10 15:57:35 +00:00 committed by Git OBS Bridge
parent 9a973fbbe9
commit e48c8be103
4 changed files with 94 additions and 1 deletions
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47
e2fsck-fix-free-pointer-dereferences.patch Normal file
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@ -0,0 +1,47 @@
From ebdf895b43a1ce499e4d2556a201e2a753fc422f Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 8 Oct 2014 11:18:41 -0400
Subject: [PATCH] e2fsck: fix free pointer dereferences
References: bnc#912229
Commit 47fee2ef6a23a introduces some free pointer dereference bugs by
not clearing ctx->fs after calling ext2fs_close_free().
Reported-by: Matthias Andree <mandree@FreeBSD.org>
Cc: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
e2fsck/unix.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: e2fsprogs-1.42.11/e2fsck/unix.c
===================================================================
--- e2fsprogs-1.42.11.orig/e2fsck/unix.c
+++ e2fsprogs-1.42.11/e2fsck/unix.c
@@ -459,7 +459,7 @@ static void check_if_skip(e2fsck_t ctx)
}
log_out(ctx, "\n");
skip:
- ext2fs_close_free(&fs);
+ ext2fs_close_free(&ctx->fs);
e2fsck_free_context(ctx);
exit(FSCK_OK);
}
@@ -1465,7 +1465,7 @@ failure:
/*
* Restart in order to reopen fs but this time start mmp.
*/
- ext2fs_close_free(&fs);
+ ext2fs_close_free(&ctx->fs);
flags &= ~EXT2_FLAG_SKIP_MMP;
goto restart;
}
@@ -1695,7 +1695,7 @@ no_journal:
_("while resetting context"));
fatal_error(ctx, 0);
}
- ext2fs_close_free(&fs);
+ ext2fs_close_free(&ctx->fs);
goto restart;
}
if (run_result & E2F_FLAG_CANCEL) {

34
e2fsck-free-ctx-fs-not-fs-at-the-end-of-fsck.patch Normal file
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@ -0,0 +1,34 @@
From a82d88ea99d3c5c21bf538b886da0482bf143fd5 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Thu, 24 Jul 2014 21:03:54 -0400
Subject: [PATCH] e2fsck: free ctx->fs, not fs, at the end of fsck
References: bnc#912229
When we call ext2fs_close_free at the end of main(), we need to supply
the address of ctx->fs, because the subsequent e2fsck_free_context
call will try to access ctx->fs (which is now set to a freed block) to
see if it should free the directory block list. This is clearly not
desirable, so fix the problem.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
e2fsck/unix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/e2fsck/unix.c b/e2fsck/unix.c
index 8d1bdf3e03cb..fc05bdeec257 100644
--- a/e2fsck/unix.c
+++ b/e2fsck/unix.c
@@ -1774,7 +1774,7 @@ no_journal:
io_channel_flush(ctx->fs->io);
print_resource_track(ctx, NULL, &ctx->global_rtrack, ctx->fs->io);
- ext2fs_close_free(&fs);
+ ext2fs_close_free(&ctx->fs);
free(ctx->journal_name);
e2fsck_free_context(ctx);
--
2.1.2

7
e2fsprogs.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Fri Jan 9 09:05:27 UTC 2015 - jack@suse.cz
- e2fsck-fix-free-pointer-dereferences.patch:
e2fsck-free-ctx-fs-not-fs-at-the-end-of-fsck.patch:
Fix use after free issues (bnc#912229)
-------------------------------------------------------------------
Mon Jul 21 17:54:46 UTC 2014 - jack@suse.cz

7
e2fsprogs.spec
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@ -1,7 +1,7 @@
#
# spec file for package e2fsprogs
#
# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
# Copyright (c) 2015 SUSE LINUX Products GmbH, Nuernberg, Germany.
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
@ -60,6 +60,9 @@ Patch1: e2fsprogs-1.41.1-splash_support.patch
Patch3: libcom_err-compile_et_permissions.patch
Patch4: e2fsprogs-1.42-implicit_fortify_decl.patch
Patch5: e2fsprogs-1.42-ext2fsh_implicit.patch
Patch6: e2fsck-free-ctx-fs-not-fs-at-the-end-of-fsck.patch
Patch7: e2fsck-fix-free-pointer-dereferences.patch
# Do not suppress make commands
BuildRoot: %{_tmppath}/%{name}-%{version}-build
@ -141,6 +144,8 @@ Development files for the com_err error message display library.
%patch3 -p1
%patch4
%patch5
%patch6 -p1
%patch7 -p1
cp %{SOURCE2} .
%build