Hi Linus, Please pull overlayfs fixes for 6.6-rc5. This branch has been sitting in linux-next for a couple of days and it has gone through the usual overlayfs test routines. The branch merges cleanly with master branch of the moment. Thanks, Amir. ---------------------------------------------------------------- The following changes since commit 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa: Linux 6.6-rc4 (2023-10-01 14:15:13 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs.git ovl-fixes-6.6-rc5 for you to fetch changes up to c7242a45cb8cad5b6cd840fd4661315b45b1e841: ovl: fix NULL pointer defer when encoding non-decodable lower fid (2023-10-03 09:24:11 +0300) ---------------------------------------------------------------- overlayfs fixes for 6.6-rc5: - Fix for file reference leak regression from v6.6-rc2 - Fix for NULL pointer deref regression from v6.6-rc1 - Fixes for RCU-walk race regressions from v6.5: Two of the fixes were taken from Al's RCU pathwalk race fixes series with his concent [1]. Note that unlike most of Al's series, these two patches are not about racing with ->kill_sb() and they are also very recent regressions from v6.5, so I think it's worth getting them into v6.5.y. There is also a fix for an RCU pathwalk race with ->kill_sb(), which may have been solved in vfs generic code as you suggested, but it also rids overlayfs from a nasty hack, so I think it's worth anyway. [1] https://lore.kernel.org/linux-fsdevel/20231003204749.GA800259@ZenIV/ ---------------------------------------------------------------- Al Viro (2): ovl: move freeing ovl_entry past rcu delay ovl: fetch inode once in ovl_dentry_revalidate_common() Amir Goldstein (3): ovl: fix file reference leak when submitting aio ovl: make use of ->layers safe in rcu pathwalk ovl: fix NULL pointer defer when encoding non-decodable lower fid fs/overlayfs/export.c | 2 +- fs/overlayfs/file.c | 2 -- fs/overlayfs/ovl_entry.h | 10 +--------- fs/overlayfs/params.c | 17 +++++++++-------- fs/overlayfs/super.c | 27 +++++++++++++++++---------- 5 files changed, 28 insertions(+), 30 deletions(-)
