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(parent: 418ffb9) | patch
btrfs: free btrfs_path before copying fspath to userspace
authorAnand Jain <anand.jain@oracle.com>
Thu, 10 Nov 2022 06:06:29 +0000 (11:36 +0530)
committerDavid Sterba <dsterba@suse.com>
Tue, 15 Nov 2022 16:15:44 +0000 (17:15 +0100)
commit8cf96b409d9b3946ece58ced13f92d0f775b0442
tree2744c0071ae12c3dcaf7639ec1f0784ec69e5064tree | snapshot
parent418ffb9e3cf6c4e2574d3a732b724916684bd133commit | diff
btrfs: free btrfs_path before copying fspath to userspace

btrfs_ioctl_ino_to_path() frees the search path after the userspace copy
from the temp buffer @ipath->fspath. Which potentially can lead to a lock
splat warning.

Fix this by freeing the path before we copy it to userspace.

CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/ioctl.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git