Re: [syzbot] WARNING in journal_end

syzbot
2022-12-03T18:34:39Z

syzbot has found a reproducer for the following issue on:

HEAD commit: 97ee9d1c1696 Merge tag 'block-6.1-2022-12-02' of git://git..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1659ac47880000
kernel config: https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=d43f346675e449548021
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=103c1f4b880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6a6a9ff34dfa/disk-97ee9d1c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2a01a4182c2b/vmlinux-97ee9d1c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4371158e8c25/bzImage-97ee9d1c.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/151849cdad37/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d43f346675e449548021@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 1 PID: 3846 at fs/reiserfs/journal.c:3395 journal_end+0x210/0x2d0
Modules linked in:
CPU: 0 PID: 3846 Comm: syz-executor.4 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:journal_end+0x210/0x2d0 fs/reiserfs/journal.c:3395
Code: 89 f6 e8 a3 f5 b2 ff 48 b8 00 00 00 00 00 fc ff df 41 8a 04 07 84 c0 0f 85 a0 00 00 00 c7 03 00 00 00 00 eb 30 e8 e0 d0 5e ff <0f> 0b b8 fb ff ff ff eb 24 e8 d2 d0 5e ff 4c 89 f7 31 f6 48 83 c4
RSP: 0018:ffffc90004fff498 EFLAGS: 00010293
RAX: ffffffff822bc950 RBX: 0000000000000000 RCX: ffff8880741c9d40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004fff554 R08: ffffffff822bc84b R09: ffffc90004fff548
R10: fffff520009ffeaf R11: 1ffff920009ffea9 R12: ffff8880741caf18
R13: 1ffff1100e8395e3 R14: ffffc90004fff540 R15: 1ffff920009ffeaa
FS: 00007fb0b0a3f700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c7b7c3f018 CR3: 000000007f927000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
reiserfs_truncate_file+0x47c/0x790 fs/reiserfs/inode.c:2311
reiserfs_setattr+0xc4d/0x11a0 fs/reiserfs/inode.c:3395
notify_change+0xe38/0x10f0 fs/attr.c:420
do_truncate+0x1fb/0x2e0 fs/open.c:65
handle_truncate fs/namei.c:3216 [inline]
do_open fs/namei.c:3561 [inline]
path_openat+0x2770/0x2df0 fs/namei.c:3714
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_creat fs/open.c:1402 [inline]
__se_sys_creat fs/open.c:1396 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1396
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb0afc8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb0b0a3f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fb0afdac050 RCX: 00007fb0afc8c0d9
RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000020000080
RBP: 00007fb0afce7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc1e1e46f R14: 00007fb0b0a3f300 R15: 0000000000022000