Re: [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbAllocAG (3)

syzbot
2026-04-17T10:33:07Z

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to apply patch:
checking file fs/jfs/jfs_dmap.c
Hunk #1 FAILED at 1373.
Hunk #2 FAILED at 1703.
2 out of 2 hunks FAILED

Tested on:

commit: 43cfbdda Merge tag 'for-linus-iommufd' of git://git.ke..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
kernel config: https://syzkaller.appspot.com/x/.config?x=af9170887d81dea1
dashboard link: https://syzkaller.appspot.com/bug?extid=4b717071f1eecb2972df
compiler:
patch: https://syzkaller.appspot.com/x/patch.diff?x=143a41ba580000