jfs_dirty_inode called on read-only volume Is remount racy? find_entry called with index = 0 find_entry called with index = 0 find_entry called with index = 0 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 PID: 6684 Comm: syz.3.213 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106 assign_lock_key+0x1f9/0x230 kernel/locking/lockdep.c:976 register_lock_class+0x212/0x890 kernel/locking/lockdep.c:1289 __lock_acquire+0x17a/0x7c80 kernel/locking/lockdep.c:5014 lock_acquire+0x197/0x410 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa8/0xf0 kernel/locking/spinlock.c:162 __wake_up_common_lock kernel/sched/wait.c:137 [inline] __wake_up+0xf8/0x190 kernel/sched/wait.c:160 txEnd+0x8a/0x520 fs/jfs/jfs_txnmgr.c:504 jfs_mkdir+0x337/0xa30 fs/jfs/namei.c:293 vfs_mkdir+0x296/0x440 fs/namei.c:4121 do_mkdirat+0x1d4/0x440 fs/namei.c:4144 __do_sys_mkdirat fs/namei.c:4159 [inline] __se_sys_mkdirat fs/namei.c:4157 [inline] __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f0010f8de17 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0011ebbe68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f0011ebbef0 RCX: 00007f0010f8de17 RDX: 00000000000001ff RSI: 00002000000001c0 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000001c0 R13: 00007f0011ebbeb0 R14: 0000000000000000 R15: 0000000000000000 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 6684 Comm: syz.3.213 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__wake_up_common+0x23c/0x4e0 kernel/sched/wait.c:100 Code: 24 00 00 00 00 49 83 c5 40 4d 39 ef 0f 84 ed 01 00 00 45 31 f6 eb 09 4d 39 ef 0f 84 df 01 00 00 4c 89 fd 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 48 89 ef e8 96 85 78 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90004e579f8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffc90002679030 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffc90004e57aa0 R10: dffffc0000000000 R11: fffff520009caf28 R12: ffffc90002679030 R13: ffffc90002679070 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f0011ebc6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdca39a898 CR3: 000000002cb49000 CR4: 00000000003526f0 Call Trace: __wake_up_common_lock kernel/sched/wait.c:138 [inline] __wake_up+0x112/0x190 kernel/sched/wait.c:160 txEnd+0x8a/0x520 fs/jfs/jfs_txnmgr.c:504 jfs_mkdir+0x337/0xa30 fs/jfs/namei.c:293 vfs_mkdir+0x296/0x440 fs/namei.c:4121 do_mkdirat+0x1d4/0x440 fs/namei.c:4144 __do_sys_mkdirat fs/namei.c:4159 [inline] __se_sys_mkdirat fs/namei.c:4157 [inline] __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f0010f8de17 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0011ebbe68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f0011ebbef0 RCX: 00007f0010f8de17 RDX: 00000000000001ff RSI: 00002000000001c0 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000001c0 R13: 00007f0011ebbeb0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common+0x23c/0x4e0 kernel/sched/wait.c:100 Code: 24 00 00 00 00 49 83 c5 40 4d 39 ef 0f 84 ed 01 00 00 45 31 f6 eb 09 4d 39 ef 0f 84 df 01 00 00 4c 89 fd 4c 89 f8 48 c1 e8 03 <80> 3c 10 00 74 12 48 89 ef e8 96 85 78 00 48 ba 00 00 00 00 00 fc RSP: 0018:ffffc90004e579f8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffffc90002679030 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffc90004e57aa0 R10: dffffc0000000000 R11: fffff520009caf28 R12: ffffc90002679030 R13: ffffc90002679070 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f0011ebc6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdca39a898 CR3: 000000002cb49000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 49 83 c5 40 add $0x40,%r13 8: 4d 39 ef cmp %r13,%r15 b: 0f 84 ed 01 00 00 je 0x1fe 11: 45 31 f6 xor %r14d,%r14d 14: eb 09 jmp 0x1f 16: 4d 39 ef cmp %r13,%r15 19: 0f 84 df 01 00 00 je 0x1fe 1f: 4c 89 fd mov %r15,%rbp 22: 4c 89 f8 mov %r15,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction 2d: 74 12 je 0x41 2f: 48 89 ef mov %rbp,%rdi 32: e8 96 85 78 00 call 0x7885cd 37: 48 rex.W 38: ba 00 00 00 00 mov $0x0,%edx 3d: 00 fc add %bh,%ah