From: syzbot <syzbot+0be4f339a8218d2a5bb1@syzkaller.appspotmail.com>
To: albinbabuvarghese20@gmail.com, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [ext4?] WARNING in ext4_xattr_inode_update_ref
Date: Wed, 17 Sep 2025 21:20:02 -0700 [thread overview]
Message-ID: <68cb8872.050a0220.2ff435.05a2.GAE@google.com> (raw)
In-Reply-To: <CADfthj0NZ7duGqudQRUfmE=J69+hBkb+gWKQMVrJ18hDsMUGpw@mail.gmail.com>
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING: lock held when returning to user space in ext4_xattr_inode_update_ref
EXT4-fs (loop0): 1 orphan inode deleted
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: none.
================================================
WARNING: lock held when returning to user space!
syzkaller #0 Not tainted
------------------------------------------------
syz.0.17/6582 is leaving the kernel with locks still held!
1 lock held by syz.0.17/6582:
#0: ffff88805849d798 (&sb->s_type->i_mutex_key#8/3){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:915 [inline]
#0: ffff88805849d798 (&sb->s_type->i_mutex_key#8/3){+.+.}-{4:4}, at: ext4_xattr_inode_update_ref+0xad/0x650 fs/ext4/xattr.c:1025
Tested on:
commit: 592a93fe Merge tag '6.17-rc6-ksmbd-fixes' of git://git..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13caef62580000
kernel config: https://syzkaller.appspot.com/x/.config?x=f5b21423ca3f0a96
dashboard link: https://syzkaller.appspot.com/bug?extid=0be4f339a8218d2a5bb1
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=14c58712580000
next parent reply other threads:[~2025-09-18 4:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CADfthj0NZ7duGqudQRUfmE=J69+hBkb+gWKQMVrJ18hDsMUGpw@mail.gmail.com>
2025-09-18 4:20 ` syzbot [this message]
[not found] <CAHxJ8O_w8ewga16ORMaoM8MZj_pbh02ZRV1T_z1B6i8Q=9AE6g@mail.gmail.com>
2025-09-24 19:56 ` [syzbot] [ext4?] WARNING in ext4_xattr_inode_update_ref syzbot
[not found] <CAHxJ8O9EHnwSkBNOmBOEg3GvDxcnqsQ5cURd+uG8G2EvUcXYfg@mail.gmail.com>
2025-09-19 23:56 ` syzbot
[not found] <CADfthj3f-mmvvm3tAWLUmtZGTKw46+eqxZhPekLA_eKLgOUG2g@mail.gmail.com>
2025-09-18 5:19 ` syzbot
[not found] <CAHxJ8O_F5ssDpCPi48eHRY=q29odqrjnOxfvdoOd5xppdhht7A@mail.gmail.com>
2025-09-18 1:28 ` syzbot
2025-09-11 0:08 syzbot
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