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btrfs-progs: corrupt-block: fix memory leak in debug_corrupt_sector()

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(cherry picked from commit 0557147f4186302bf243186c313a61e2a8377cd4)
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cenhuilin 2024-09-06 12:36:15 +08:00 committed by openeuler-sync-bot
parent 6635d83faf
commit 3e7c351dcb
2 changed files with 61 additions and 1 deletions
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56
0013-btrfs-progs-corrupt-block-fix-memory-leak-in-debug_c.patch Normal file
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@ -0,0 +1,56 @@
From fd5a80e5bfb472c31eeab4caa4f4907b803b1b60 Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Fri, 6 Sep 2024 12:30:45 +0800
Subject: [PATCH] btrfs-progs: corrupt-block: fix memory leak in debug_corrupt_sector().
ASAN build (make D=asan) detects a memory leak in
btrfs-corrupt-block inside debug_corrupt_sector().
This can be reproduced by fsck/013 test case.
The cause is pretty simple, we just malloc a sector and forgot to free
it.
Issue: #806
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
btrfs-corrupt-block.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c
index 1245973..e883198 100644
--- a/btrfs-corrupt-block.c
+++ b/btrfs-corrupt-block.c
@@ -70,7 +70,7 @@ static int debug_corrupt_sector(struct btrfs_root *root, u64 logical, int mirror
if (ret < 0) {
errno = -ret;
error("cannot read bytenr %llu: %m", logical);
- return ret;
+ goto out;
}
printf("corrupting %llu copy %d\n", logical, mirror_num);
memset(buf, 0, sectorsize);
@@ -78,7 +78,7 @@ static int debug_corrupt_sector(struct btrfs_root *root, u64 logical, int mirror
if (ret < 0) {
errno = -ret;
error("cannot write bytenr %llu: %m", logical);
- return ret;
+ goto out;
}
}
@@ -90,7 +90,8 @@ static int debug_corrupt_sector(struct btrfs_root *root, u64 logical, int mirror
if (mirror_num > num_copies)
break;
}
-
+out:
+ free(buf);
return 0;
}
--
2.23.0

6
btrfs-progs.spec
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@ -1,6 +1,6 @@
Name: btrfs-progs
Version: 6.6.3
Release: 12
Release: 13
Summary: btrfs userspace programs
License: GPLv2 and GPL+ and LGPL-2.1+ and GPL-3.0+ and LGPL-2.1 and MIT
URL: https://btrfs.wiki.kernel.org/index.php/Main_Page
@ -18,6 +18,7 @@ Patch0009: 0009-btrfs-progs-error-out-immediately-if-an-unknown-back.patch
Patch0010: 0010-btrfs-progs-fix-the-conflicting-super-block-flags.patch
Patch0011: 0011-btrfs-progs-convert-for-ext2-fix-possible-tree-check.patch
Patch0012: 0012-btrfs-progs-convert-insert-a-dummy-inode-item-before.patch
Patch0013: 0013-btrfs-progs-corrupt-block-fix-memory-leak-in-debug_c.patch
BuildRequires: python3-devel >= 3.4
BuildRequires: libacl-devel, e2fsprogs-devel, libblkid-devel, libuuid-devel, zlib-devel, libzstd-devel, lzo-devel, systemd-devel
@ -83,6 +84,9 @@ make mandir=%{_mandir} bindir=%{_sbindir} libdir=%{_libdir} incdir=%{_includedir
%{_mandir}/man8/*.gz
%changelog
* Fri Sep 6 2024 cenhuilin <cenhuilin@kylinos.cn> - 6.6.3-13
- btrfs-progs: corrupt-block: fix memory leak in debug_corrupt_sector()
* Tue Sep 3 2024 liuh <liuhuan01@kylinos.cn> - 6.6.3-12
- btrfs-progs: convert: insert a dummy inode item before inode ref for ext2/4
- btrfs-progs: convert: for ext2, fix possible tree-checker error when converting a large fs