syzbot


kernel BUG in txEnd (2)

Status: upstream: reported C repro on 2024/02/13 15:23
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+776b5fc6c99745aa7860@syzkaller.appspotmail.com
First crash: 67d, last: 23d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] [jfs?] kernel BUG in txEnd (2) 0 (2) 2024/03/29 07:57
Re: [syzbot] [jfs?] kernel BUG in txEnd (2) 1 (1) 2024/02/20 03:00
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in txEnd jfs C inconclusive done 6 91d 305d 26/26 fixed on 2024/01/30 15:47
linux-6.1 kernel BUG in txEnd origin:upstream C 1 17d 217d 0/3 upstream: reported C repro on 2023/09/16 10:44
linux-5.15 kernel BUG in txEnd origin:upstream C 1 2d18h 258d 0/3 upstream: reported C repro on 2023/08/06 15:29
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/04/19 08:04 21m retest repro upstream error OK

Sample crash report:
jfs_dirty_inode called on read-only volume
Is remount racy?
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 NOPTI
CPU: 1 PID: 5253 Comm: syz-executor989 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528
Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e
RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339
RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112
FS:  00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 add_missing_indices fs/jfs/jfs_dtree.c:2663 [inline]
 jfs_readdir+0x2952/0x4310 fs/jfs/jfs_dtree.c:3009
 wrap_directory_iterator+0xa8/0xe0 fs/readdir.c:67
 iterate_dir+0x295/0x9e0 fs/readdir.c:110
 __do_sys_getdents fs/readdir.c:326 [inline]
 __se_sys_getdents fs/readdir.c:311 [inline]
 __x64_sys_getdents+0x14f/0x2d0 fs/readdir.c:311
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc48c2f6c39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 1d 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc48c282168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007fc48c37e6d8 RCX: 00007fc48c2f6c39
RDX: 0000000000001000 RSI: 0000000020006600 RDI: 0000000000000005
RBP: 00007fc48c37e6d0 R08: 00007fc48c2826c0 R09: 0000000000000000
R10: 00007fc48c2826c0 R11: 0000000000000246 R12: 00007fc48c37e6dc
R13: 000000000000006e R14: 00007ffdf1f02700 R15: 00007ffdf1f027e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528
Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e
RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282
RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339
RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112
FS:  00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/29 07:56 upstream fe46a7dd189e 120789fd .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-badwrites-root kernel BUG in txEnd
2024/02/13 14:38 upstream c664e16bb1ba e66542d7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel BUG in txEnd
* Struck through repros no longer work on HEAD.