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| author |   Zixuan Fu <r33s3n6@gmail.com> | 2022-08-15 23:16:06 +0800 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-08-22 18:06:33 +0200 |
| commit | 9ea0106a7a3d8116860712e3f17cd52ce99f6707 (patch) | |
| tree | 84332b7037a6dd5c9173260f35c7abcd2e69d5c3 /fs/btrfs/file.c | |
| parent | btrfs: check if root is readonly while setting security xattr (diff) | |
| download | linux-dev-9ea0106a7a3d8116860712e3f17cd52ce99f6707.tar.xz linux-dev-9ea0106a7a3d8116860712e3f17cd52ce99f6707.zip | |
btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()
In btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if
the path is invalid. In this case, btrfs_get_dev_args_from_path()
returns directly without freeing args->uuid and args->fsid allocated
before, which causes memory leak.
To fix these possible leaks, when btrfs_get_bdev_and_sb() fails,
btrfs_put_dev_args_from_path() is called to clean up the memory.
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Fixes: faa775c41d655 ("btrfs: add a btrfs_get_dev_args_from_path helper")
CC: stable@vger.kernel.org # 5.16
Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Zixuan Fu <r33s3n6@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/file.c')
0 files changed, 0 insertions, 0 deletions