find_entry called with index = 0 jfs_dirty_inode called on read-only volume Is remount racy? jfs_dirty_inode called on read-only volume Is remount racy? INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 0 UID: 0 PID: 5302 Comm: syz-executor207 Not tainted 6.15.0-rc4-syzkaller-00296-ge8ab83e34bdc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:986 register_lock_class+0x105/0x320 kernel/locking/lockdep.c:1300 __lock_acquire+0x7f/0xd20 kernel/locking/lockdep.c:5110 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5866 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162 __wake_up_common_lock+0x2f/0x1f0 kernel/sched/wait.c:105 txEnd+0x8a/0x530 fs/jfs/jfs_txnmgr.c:504 jfs_create+0x33e/0xa80 fs/jfs/namei.c:159 lookup_open fs/namei.c:3701 [inline] open_last_lookups fs/namei.c:3800 [inline] path_openat+0x14f1/0x3830 fs/namei.c:4036 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f14fbd8df19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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:00007ffefe871858 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000200000000240 RCX: 00007f14fbd8df19 RDX: 000000000000275a RSI: 0000200000000080 RDI: 00000000ffffff9c RBP: 00007f14fbdd7095 R08: 0000000000000000 R09: 0000200000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffefe871890 R13: 00007ffefe871ab8 R14: 431bde82d7b634db R15: 00007f14fbdd703b Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 5302 Comm: syz-executor207 Not tainted 6.15.0-rc4-syzkaller-00296-ge8ab83e34bdc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__wake_up_common kernel/sched/wait.c:85 [inline] RIP: 0010:__wake_up_common_lock+0xd3/0x1f0 kernel/sched/wait.c:106 Code: fd 0f 84 d1 00 00 00 8b 6c 24 04 eb 13 48 ba 00 00 00 00 00 fc ff df 4d 39 fd 0f 84 b8 00 00 00 4d 89 ee 4c 89 e8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 9f 48 86 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9000d15f680 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000002 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc9000d15f560 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001a2beac R12: ffff88803f1e1028 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc900013b9070 FS: 000055555e4b7380(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffefe872000 CR3: 0000000033d12000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: txEnd+0x8a/0x530 fs/jfs/jfs_txnmgr.c:504 jfs_create+0x33e/0xa80 fs/jfs/namei.c:159 lookup_open fs/namei.c:3701 [inline] open_last_lookups fs/namei.c:3800 [inline] path_openat+0x14f1/0x3830 fs/namei.c:4036 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f14fbd8df19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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:00007ffefe871858 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000200000000240 RCX: 00007f14fbd8df19 RDX: 000000000000275a RSI: 0000200000000080 RDI: 00000000ffffff9c RBP: 00007f14fbdd7095 R08: 0000000000000000 R09: 0000200000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffefe871890 R13: 00007ffefe871ab8 R14: 431bde82d7b634db R15: 00007f14fbdd703b Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common kernel/sched/wait.c:85 [inline] RIP: 0010:__wake_up_common_lock+0xd3/0x1f0 kernel/sched/wait.c:106 Code: fd 0f 84 d1 00 00 00 8b 6c 24 04 eb 13 48 ba 00 00 00 00 00 fc ff df 4d 39 fd 0f 84 b8 00 00 00 4d 89 ee 4c 89 e8 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 9f 48 86 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc9000d15f680 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000002 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc9000d15f560 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52001a2beac R12: ffff88803f1e1028 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc900013b9070 FS: 000055555e4b7380(0000) GS:ffff88808d6cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffefe872000 CR3: 0000000033d12000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: fd std 1: 0f 84 d1 00 00 00 je 0xd8 7: 8b 6c 24 04 mov 0x4(%rsp),%ebp b: eb 13 jmp 0x20 d: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 14: fc ff df 17: 4d 39 fd cmp %r15,%r13 1a: 0f 84 b8 00 00 00 je 0xd8 20: 4d 89 ee mov %r13,%r14 23: 4c 89 e8 mov %r13,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction 2e: 74 12 je 0x42 30: 4c 89 f7 mov %r14,%rdi 33: e8 9f 48 86 00 call 0x8648d7 38: 48 rex.W 39: ba 00 00 00 00 mov $0x0,%edx 3e: 00 fc add %bh,%ah