diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2023-05-06 21:04:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-17 13:59:11 +0200 |
| commit | 0b1c4357bb21d9770451a1bdb8d419ea10bada88 (patch) | |
| tree | 8e485b66c23d77708ddbef00be5490f3671568f7 /include/uapi/linux/virtio_gpu.h | |
| parent | 70d579aefa652a06af97e013e3fbbabbe5a43553 (diff) | |
ext4: fix deadlock when converting an inline directory in nojournal mode
commit f4ce24f54d9cca4f09a395f3eecce20d6bec4663 upstream.
In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock
by calling ext4_handle_dirty_dirblock() when it already has taken the
directory lock. There is a similar self-deadlock in
ext4_incvert_inline_data_nolock() for data files which we'll fix at
the same time.
A simple reproducer demonstrating the problem:
mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64
mount -t ext4 -o dirsync /dev/vdc /vdc
cd /vdc
mkdir file0
cd file0
touch file0
touch file1
attr -s BurnSpaceInEA -V abcde .
touch supercalifragilisticexpialidocious
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230507021608.1290720-1-tytso@mit.edu
Reported-by: syzbot+91dccab7c64e2850a4e5@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=ba84cc80a9491d65416bc7877e1650c87530fe8a
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/virtio_gpu.h')
0 files changed, 0 insertions, 0 deletions