linux-kernel - Re: [syzbot] [ext4?] KASAN: slab-out-of-bounds Read in ext4_search

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Message-ID: <68de1af9.a00a0220.102ee.007c.GAE@google.com>
Date: Wed, 01 Oct 2025 23:26:01 -0700
From: syzbot <syzbot+3ee481e21fd75e14c397@...kaller.appspotmail.com>
To: kartikey406@...il.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ext4?] KASAN: slab-out-of-bounds Read in ext4_search_dir

Hello,

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

fs/ext4/xattr.c:255:35: error: use of undeclared identifier 'EXT4_XATTR_SYSTEM_DATA'
fs/ext4/xattr.c:256:30: error: use of undeclared identifier 'EXT4_XATTR_SYSTEM_DATA'

Tested on:

commit:         7f707257 Merge tag 'kbuild-6.18-1' of git://git.kernel..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=ee1d7eda39c03d2c
dashboard link: https://syzkaller.appspot.com/bug?extid=3ee481e21fd75e14c397
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=159a56e2580000