syzbot


kernel BUG in txEnd

Status: upstream: reported C repro on 2023/09/16 10:44
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+adbd27b96d05786172d1@syzkaller.appspotmail.com
First crash: 282d, last: 17d
Bug presence (1)
Date Name Commit Repro Result
2023/09/16 upstream (ToT) 57d88e8a5974 C [report] kernel BUG in txEnd
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in txEnd (2) jfs C error 5 5d21h 132d 0/27 upstream: reported C repro on 2024/02/13 15:23
upstream kernel BUG in txEnd jfs C inconclusive done 6 156d 370d 26/27 fixed on 2024/01/30 15:47
linux-5.15 kernel BUG in txEnd origin:upstream C 1 34d 323d 0/3 upstream: reported C repro on 2023/08/06 15:29
Fix bisection attempts (8)
Created Duration User Patch Repo Result
2024/06/07 15:00 1h02m bisect fix linux-6.1.y job log (0) log
2024/05/07 22:14 1h01m bisect fix linux-6.1.y job log (0) log
2024/04/03 15:06 4h05m bisect fix linux-6.1.y job log (0) log
2024/03/04 03:10 1h09m bisect fix linux-6.1.y job log (0) log
2024/01/25 21:22 1h02m bisect fix linux-6.1.y job log (0) log
2023/12/25 16:15 1h58m bisect fix linux-6.1.y job log (0) log
2023/11/25 00:22 1h29m bisect fix linux-6.1.y job log (0) log
2023/10/21 17:11 1h02m bisect fix linux-6.1.y job log (0) log

Sample crash report:
ERROR: (device loop0): xtTruncate: XT_GETPAGE: xtree page corrupt
ERROR: (device loop0): remounting filesystem as read-only
BUG at fs/jfs/jfs_txnmgr.c:528 assert(tblk->next == 0)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_txnmgr.c:528!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3544 Comm: syz-executor393 Not tainted 6.1.53-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:txEnd+0x552/0x560 fs/jfs/jfs_txnmgr.c:528
Code: fe e9 cd fe ff ff e8 dd 85 82 fe 48 c7 c7 00 91 24 8b 48 c7 c6 f9 8c 24 8b ba 10 02 00 00 48 c7 c1 40 91 24 8b e8 c7 70 7c 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41
RSP: 0018:ffffc90003a8f5b0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: 0000000000000001 RCX: 91f26da63969d500
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff920004c8227 R08: ffffffff816dbf1c R09: fffff52000751e2d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90002641138 R15: 0000000000000110
FS:  000055555643a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdc481fdd8 CR3: 000000007c607000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_truncate_nolock+0x2ef/0x380 fs/jfs/inode.c:396
 jfs_truncate+0xc7/0x140 fs/jfs/inode.c:417
 jfs_setattr+0x603/0x840 fs/jfs/file.c:119
 notify_change+0xdcd/0x1080 fs/attr.c:483
 do_truncate+0x21c/0x300 fs/open.c:65
 handle_truncate fs/namei.c:3216 [inline]
 do_open fs/namei.c:3561 [inline]
 path_openat+0x27e2/0x2e60 fs/namei.c:3714
 do_filp_open+0x230/0x480 fs/namei.c:3741
 do_sys_openat2+0x13b/0x500 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_open fs/open.c:1342 [inline]
 __se_sys_open fs/open.c:1338 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1338
 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: 0033:0x7fa4fa86a5f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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:00007ffdd2253538 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffdd2253718 RCX: 00007fa4fa86a5f9
RDX: 0000000000000000 RSI: 000000000014527e RDI: 0000000020000040
RBP: 00007fa4fa8e3610 R08: 0000000000005dea R09: 0000000000000000
R10: 00007ffdd2253400 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdd2253708 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x552/0x560 fs/jfs/jfs_txnmgr.c:528
Code: fe e9 cd fe ff ff e8 dd 85 82 fe 48 c7 c7 00 91 24 8b 48 c7 c6 f9 8c 24 8b ba 10 02 00 00 48 c7 c1 40 91 24 8b e8 c7 70 7c 07 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 41 57 41 56 41 55 41
RSP: 0018:ffffc90003a8f5b0 EFLAGS: 00010246
RAX: 0000000000000036 RBX: 0000000000000001 RCX: 91f26da63969d500
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff920004c8227 R08: ffffffff816dbf1c R09: fffff52000751e2d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90002641138 R15: 0000000000000110
FS:  000055555643a380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdc481fdd8 CR3: 000000007c607000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/16 10:43 linux-6.1.y 09045dae0d90 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in txEnd
* Struck through repros no longer work on HEAD.