Re: [syzbot] [ext4?] KASAN: slab-use-after-free Write in do_split

From: syzbot

Date: Sun Oct 04 2026 - 15:30:09 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+09bec78ee77613a3efdd@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+09bec78ee77613a3efdd@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 7704c4c5 Merge tag 'i2c-fixes-7.3-rc6' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=178897f5580000
kernel config: https://syzkaller.appspot.com/x/.config?x=341a98f91c13ec9
dashboard link: https://syzkaller.appspot.com/bug?extid=09bec78ee77613a3efdd
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=14fc27f5580000

Note: testing is done by a robot and is best-effort only.