shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

btrfs: scrub: put bio after errors in scrub_raid56_parity_stripe()

Browse Source 
commit 5fea61aa1ca70c4b3738eebad9ce2d7e7938ebbd upstream.

scrub_raid56_parity_stripe() allocates a bio with bio_alloc(), but
fails to release it on some error paths, leading to a potential
memory leak.

Add the missing bio_put() calls to properly drop the bio reference
in those error cases.

Fixes: 1009254bf2 ("btrfs: scrub: use scrub_stripe to implement RAID56 P/Q scrub")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zilin Guan
2025-11-05 03:53:21 +00:00
committed by Greg Kroah-Hartman
parent 4a351adbbd
commit 4020f18436
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/btrfs/scrub.c
View File

@@ -2000,6 +2000,7 @@ static int scrub_raid56_parity_stripe(struct scrub_ctx *sctx,
ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, full_stripe_start,
&length, &bioc, NULL, NULL, 1);
if (ret < 0) {
bio_put(bio);
btrfs_put_bioc(bioc);
btrfs_bio_counter_dec(fs_info);
goto out;
@@ -2009,6 +2010,7 @@ static int scrub_raid56_parity_stripe(struct scrub_ctx *sctx,
btrfs_put_bioc(bioc);
if (!rbio) {
ret = -ENOMEM;
bio_put(bio);
btrfs_bio_counter_dec(fs_info);
goto out;
}