Re: [syzbot] [ext4?] KASAN: use-after-free Read in ext4_find_extent (4)

From: syzbot

Date: Thu Nov 20 2025 - 11:11:04 EST


Hello,

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

Reported-by: syzbot+ee60e584b5c6bb229126@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+ee60e584b5c6bb229126@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 23cb64fb Merge tag 'soc-fixes-6.18-3' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=159b997c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=6e611fe59206f39f
dashboard link: https://syzkaller.appspot.com/bug?extid=ee60e584b5c6bb229126
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=13abba12580000

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