general protection fault, probably for non-canonical address 0xdffffc000000003d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000001e8-0x00000000000001ef]
CPU: 0 PID: 7011 Comm: segctord Not tainted 5.15.117-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__lock_acquire+0x69/0x1ff0 kernel/locking/lockdep.c:4881
Code: 84 c0 48 89 7c 24 08 0f 85 3f 16 00 00 83 3d 11 84 81 0c 00 0f 84 ec 14 00 00 83 3d 80 42 1c 0b 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 10 00 74 14 e8 3c e1 66 00 48 8b 7c 24 08 48 ba 00 00 00 00
RSP: 0018:ffffc9000345f100 EFLAGS: 00010002
RAX: 000000000000003d RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807de55940 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002002 CR3: 000000007b159000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:363 [inline]
create_empty_buffers+0xd4/0x6d0 fs/buffer.c:1571
nilfs_lookup_dirty_data_buffers+0x3b3/0x9b0 fs/nilfs2/segment.c:729
nilfs_segctor_scan_file+0x245/0xad0 fs/nilfs2/segment.c:1073
nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1195 [inline]
nilfs_segctor_collect fs/nilfs2/segment.c:1522 [inline]
nilfs_segctor_do_construct+0x1d48/0x7190 fs/nilfs2/segment.c:2068
nilfs_segctor_construct+0x145/0x8c0 fs/nilfs2/segment.c:2404
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2512 [inline]
nilfs_segctor_thread+0x512/0x1130 fs/nilfs2/segment.c:2595
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
Modules linked in:
---[ end trace f260b94612ece010 ]---
RIP: 0010:__lock_acquire+0x69/0x1ff0 kernel/locking/lockdep.c:4881
Code: 84 c0 48 89 7c 24 08 0f 85 3f 16 00 00 83 3d 11 84 81 0c 00 0f 84 ec 14 00 00 83 3d 80 42 1c 0b 00 74 2d 48 89 f8 48 c1 e8 03 <80> 3c 10 00 74 14 e8 3c e1 66 00 48 8b 7c 24 08 48 ba 00 00 00 00
RSP: 0018:ffffc9000345f100 EFLAGS: 00010002
RAX: 000000000000003d RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 00000000000001e8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807de55940 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002002 CR3: 000000007b159000 CR4: 00000000003506f0
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 11 84 81 0c 00 cmpl $0x0,0xc818411(%rip) # 0xc818425
14: 0f 84 ec 14 00 00 je 0x1506
1a: 83 3d 80 42 1c 0b 00 cmpl $0x0,0xb1c4280(%rip) # 0xb1c42a1
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 3c e1 66 00 callq 0x66e171
35: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi
3a: 48 rex.W
3b: ba 00 00 00 00 mov $0x0,%edx