Thanks for pointing this out Andrew. It looks like this patch is relying on AUFS that has been dropped/disabled in jammy, but it's still available in focal, so we should definitely re-apply this patch.
I'll make sure this is re-applied to 5.13 and 5.15 (changing the code to properly depend on AUFS). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/1967924 Title: One overlayfs fix has not been backported to the 5.13 branch Status in linux-azure package in Ubuntu: Confirmed Bug description: The next patch has not been ported to the the 5.13 branch: $ git show Ubuntu-azure-5.8-5.8.0-1033.35_20.04.1~656 commit 5f5716d1f7ece06c66d7d8145dd6b3a5886b3e56 Author: Alexander Mikhalitsyn <alexan...@mihalicyn.com> Date: Mon Apr 26 10:11:00 2021 +0200 UBUNTU: SAUCE: overlayfs: fix incorrect mnt_id of files opened from map_files BugLink: https://bugs.launchpad.net/bugs/1857257 ... Fixes: d24b8a5 ("UBUNTU: SAUCE: overlayfs: allow with shiftfs as underlay") But it isn't in the 5.13 branch: $ git log --pretty=oneline origin/azure-5.13-next fs/overlayfs/file.c 1e6145d8708c831d2aa5c26aa15eb98e1a1683b9 ovl: fix use after free in struct ovl_aio_req 7b5bda27d1fc4d7bde20cf6ed203fe88c458169a ovl: fix IOCB_DIRECT if underlying fs doesn't support direct IO 1626e7f7ab7eb74e142fec7fe6b7c9614972a56b ovl: fix deadlock in splice write 1443bc4a25ca84d60d39a8ae1dc6215abdd637a4 UBUNTU: SAUCE: overlayfs: allow with shiftfs as underlay To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1967924/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp