Oops: stack segment: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 123 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)}
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__list_add_valid_or_report+0x3e/0x130 lib/list_debug.c:29
Code: 00 00 00 48 89 d3 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 d2 c3 9d fd 4d 39 34 24 75 71
RSP: 0018:ffffc900039d7b10 EFLAGS: 00010a06
RAX: ffffc90003229190 RBX: dead000000000100 RCX: dffffc0000000000
RDX: dead000000000100 RSI: ffffc900032291a0 RDI: ffff88803146f898
RBP: 1bd5a00000000021 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1dac5ef R12: dead000000000108
R13: dffffc0000000000 R14: ffffc900032291a0 R15: ffff88803146f898
FS: 0000000000000000(0000) GS:ffff888126ef9000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7fb61c000 CR3: 0000000041734000 CR4: 00000000003526f0
Call Trace:
<TASK>
__list_add_valid include/linux/list.h:96 [inline]
__list_add include/linux/list.h:158 [inline]
list_add include/linux/list.h:177 [inline]
diUpdatePMap+0x63e/0xe00 fs/jfs/jfs_imap.c:2831
txUpdateMap+0x7da/0x9c0 fs/jfs/jfs_txnmgr.c:2357
txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
jfs_lazycommit+0x3f1/0xa10 fs/jfs/jfs_txnmgr.c:2734
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0x3e/0x130 lib/list_debug.c:29
Code: 00 00 00 48 89 d3 48 85 d2 0f 84 93 00 00 00 49 89 f6 49 89 ff 49 bd 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e5 48 c1 ed 03 <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 d2 c3 9d fd 4d 39 34 24 75 71
RSP: 0018:ffffc900039d7b10 EFLAGS: 00010a06
RAX: ffffc90003229190 RBX: dead000000000100 RCX: dffffc0000000000
RDX: dead000000000100 RSI: ffffc900032291a0 RDI: ffff88803146f898
RBP: 1bd5a00000000021 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1dac5ef R12: dead000000000108
R13: dffffc0000000000 R14: ffffc900032291a0 R15: ffff88803146f898
FS: 0000000000000000(0000) GS:ffff888126ef9000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7fb61c000 CR3: 0000000041734000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 48 89 add %cl,-0x77(%rax)
5: d3 48 85 rorl %cl,-0x7b(%rax)
8: d2 0f rorb %cl,(%rdi)
a: 84 93 00 00 00 49 test %dl,0x49000000(%rbx)
10: 89 f6 mov %esi,%esi
12: 49 89 ff mov %rdi,%r15
15: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13
1c: fc ff df
1f: 4c 8d 63 08 lea 0x8(%rbx),%r12
23: 4c 89 e5 mov %r12,%rbp
26: 48 c1 ed 03 shr $0x3,%rbp
* 2a: 42 80 7c 2d 00 00 cmpb $0x0,0x0(%rbp,%r13,1) <-- trapping instruction
30: 74 08 je 0x3a
32: 4c 89 e7 mov %r12,%rdi
35: e8 d2 c3 9d fd call 0xfd9dc40c
3a: 4d 39 34 24 cmp %r14,(%r12)
3e: 75 71 jne 0xb1