general protection fault, probably for non-canonical address 0xdffffc000000003d: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x00000000000001e8-0x00000000000001ef] CPU: 1 PID: 276 Comm: jfsCommit Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__lock_acquire+0x69/0x1ff0 kernel/locking/lockdep.c:4882 Code: 84 c0 48 89 7c 24 08 0f 85 3f 16 00 00 83 3d 71 e0 86 0c 00 0f 84 ec 14 00 00 83 3d 20 39 1c 0b 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 10 00 74 14 e8 9c 70 67 00 48 8b 7c 24 08 48 ba 00 00 00 00 RSP: 0018:ffffc90002d27ae0 EFLAGS: 00010002 RAX: 000000000000003d RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 00000000000001e8 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff88801e04d940 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555c354808 CR3: 0000000023da1000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170 spin_lock_irq include/linux/spinlock.h:388 [inline] txLazyCommit fs/jfs/jfs_txnmgr.c:2702 [inline] jfs_lazycommit+0x4ed/0xc30 fs/jfs/jfs_txnmgr.c:2766 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace 8b01c9bbbc2c07f4 ]--- RIP: 0010:__lock_acquire+0x69/0x1ff0 kernel/locking/lockdep.c:4882 Code: 84 c0 48 89 7c 24 08 0f 85 3f 16 00 00 83 3d 71 e0 86 0c 00 0f 84 ec 14 00 00 83 3d 20 39 1c 0b 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 10 00 74 14 e8 9c 70 67 00 48 8b 7c 24 08 48 ba 00 00 00 00 RSP: 0018:ffffc90002d27ae0 EFLAGS: 00010002 RAX: 000000000000003d RBX: 0000000000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 00000000000001e8 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff88801e04d940 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555c354808 CR3: 0000000023da1000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 84 c0 test %al,%al 2: 48 89 7c 24 08 mov %rdi,0x8(%rsp) 7: 0f 85 3f 16 00 00 jne 0x164c d: 83 3d 71 e0 86 0c 00 cmpl $0x0,0xc86e071(%rip) # 0xc86e085 14: 0f 84 ec 14 00 00 je 0x1506 1a: 83 3d 20 39 1c 0b 00 cmpl $0x0,0xb1c3920(%rip) # 0xb1c3941 21: 74 2d je 0x50 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction 2e: 74 14 je 0x44 30: e8 9c 70 67 00 call 0x6770d1 35: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi 3a: 48 rex.W 3b: ba 00 00 00 00 mov $0x0,%edx