From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E037B184 for ; Thu, 11 Sep 2025 00:08:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757549315; cv=none; b=TpXFp+2N2DWjSBdVcWFf139y2+QrQUUWpPC9LcoNGdzOjzC3xIhqEbpXQunuLfouMpcSfykfsQkX4RUpPeaquK9I7KBdluACwBpFYv18ideAPfNTe4gZ2nHMO5tWGnlv5ENiSLaeJRtNK8ysIw9BthNSLYxXozpASeJ1MRt/0HI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757549315; c=relaxed/simple; bh=XI9C9h9K47/5TfFx5Vwvtyh+qxve7EjqUwejeCFjFoE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=RgNbV82XQHdT6QrxUbaBUaxHAGt2jRHoUchIb0JivCiCOS5fuOWh7eCOqvVps84znb5GQqSU+55zaL2zs55dtLhI7ZsnJOHy+HoE1GgwjkOLn+7PdDQTD7LbXADLekWz9QfLr0ztbWPcfXO15KdubQslRYaTM9lAWofNuGCqXLM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.207 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f207.google.com with SMTP id e9e14a558f8ab-402abd9bfadso2342485ab.0 for ; Wed, 10 Sep 2025 17:08:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757549313; x=1758154113; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=1I0EN3prULMItg0ARiBZXqqxTQs8EcDxdTq3aZDfvOE=; b=iuD5bxzzKS+gqU0iid4IxEfuIIsANrk80Jzhy1grKFMlCgQVjuPPLjXL9+vwMKEYrL jYlIFw2GyWSXRvXnDhwEo+qnj4lnn8YXQefEk7ePXzfFIfEHkJZltxd8MwBzCdQdMZcG TGNimAHWYvCL3N6HOC+p3Q52F/IOyJdniCE3lO6lvBZ/64Oe7HfxKLdW32C83fb3Jqzw Uo6cx9a5ePTT1ljENI+Mj/th1JVETEHf+RcQgve83Rs4UP31VnTgpCFmvePJstaSMo54 69t3rIy9yRFJMzGt7S3/vlEj46/kHwjIXiPOX80TilhRRgCYt3aw0Z+nNroJmNFQGVtv EQCw== X-Forwarded-Encrypted: i=1; AJvYcCUEOFJEYY4VI1VOJ0MWP8UG0J1Y9NWSbZEod/XnGw5m+czygGvC8GsKELiZFxiD+v0daCUlDoXCFg3VFQI=@vger.kernel.org X-Gm-Message-State: AOJu0YwKNqnIo86SNeTFseVoANpCy0XZis2zIcxTjdkSBOhuwia1fwyb MRFrzqTE4XGwVwW8yeJZnD0yM9FupBtLxTtPqRRn+KIs8nfkH6P2PEjqUEab/DOGfaZbwBiQ48T HyKJZsT8XXprBmZsHso/+X4NTyS0p7S/tgL6Kat+qFIZN9x9VmwnTL6kcJgU= X-Google-Smtp-Source: AGHT+IEWi41sWfY1REAYdhBHr8dv/WnJUOhbTMPR1lz9qvElIeqf/nBWCAxeFbAvrE81G8GaaN37OAc3jcsUAMFjDzZY9Mf6Wvh5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:178c:b0:40f:3015:239f with SMTP id e9e14a558f8ab-40f301523a9mr132098245ab.6.1757549313109; Wed, 10 Sep 2025 17:08:33 -0700 (PDT) Date: Wed, 10 Sep 2025 17:08:33 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c21301.050a0220.3c6139.0031.GAE@google.com> Subject: [syzbot] [ext4?] WARNING in ext4_xattr_inode_update_ref From: syzbot To: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 9dd1835ecda5 Merge tag 'dma-mapping-6.17-2025-09-09' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17e0f87c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=429771c55b615e85 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 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1617c934580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10eba642580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/63dc392685dc/disk-9dd1835e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3dfcfb97806e/vmlinux-9dd1835e.xz kernel image: https://storage.googleapis.com/syzbot-assets/ddb10128aeb8/bzImage-9dd1835e.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/39ec3165daa7/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=16fecb12580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0be4f339a8218d2a5bb1@syzkaller.appspotmail.com EXT4-fs warning (device loop0): ext4_xattr_inode_get:556: inode #11: comm syz.0.17: EA inode hash validation failed EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2848: Unable to expand inode 15. Delete some EAs or run e2fsck. ------------[ cut here ]------------ EA inode 11 ref_count=-1 WARNING: CPU: 1 PID: 6111 at fs/ext4/xattr.c:1048 ext4_xattr_inode_update_ref+0x44b/0x5d0 fs/ext4/xattr.c:1047 Modules linked in: CPU: 1 UID: 0 PID: 6111 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:ext4_xattr_inode_update_ref+0x44b/0x5d0 fs/ext4/xattr.c:1047 Code: 78 40 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 e8 05 a2 ff 49 8b 37 48 c7 c7 20 6d 1f 8b 4c 89 ea e8 06 9b 07 ff 90 <0f> 0b 90 90 48 bb 00 00 00 00 00 fc ff df 4c 8b 74 24 20 4c 8b 6c RSP: 0018:ffffc90003fef2e0 EFLAGS: 00010246 RAX: c3a43c61d4524a00 RBX: dffffc0000000000 RCX: ffff888056a79dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003fef3d0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124863 R12: ffffc90003fef340 R13: ffffffffffffffff R14: 00000000ffffffff R15: ffff888042eaee10 FS: 0000555558b13500(0000) GS:ffff8881269bf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f92c9cf3000 CR3: 0000000056d94000 CR4: 00000000003526f0 Call Trace: ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1076 [inline] ext4_xattr_inode_dec_ref_all+0x867/0xda0 fs/ext4/xattr.c:1218 ext4_xattr_delete_inode+0xa4c/0xc10 fs/ext4/xattr.c:2942 ext4_evict_inode+0xac9/0xee0 fs/ext4/inode.c:271 evict+0x504/0x9c0 fs/inode.c:810 ext4_orphan_cleanup+0xc20/0x1460 fs/ext4/orphan.c:474 __ext4_fill_super fs/ext4/super.c:5609 [inline] ext4_fill_super+0x57fa/0x60b0 fs/ext4/super.c:5728 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4324 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f07d069034a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeedf2c668 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffeedf2c6f0 RCX: 00007f07d069034a RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffeedf2c6b0 RBP: 0000200000000180 R08: 00007ffeedf2c6f0 R09: 000000000080078b R10: 000000000080078b R11: 0000000000000246 R12: 00002000000001c0 R13: 00007ffeedf2c6b0 R14: 0000000000000473 R15: 0000200000000680 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup