loop0: detected capacity change from 0 to 2048
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: 1 PID: 17576 Comm: syz-executor.0 Not tainted 6.0.0-syzkaller-05118-g833477fce7a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
assign_lock_key+0x212/0x220 kernel/locking/lockdep.c:979
register_lock_class+0x18d/0x930 kernel/locking/lockdep.c:1292
__lock_acquire+0xe4/0x1f60 kernel/locking/lockdep.c:4932
lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5666
down_read+0x39/0x50 kernel/locking/rwsem.c:1499
nilfs_bmap_lookup_at_level+0x88/0x350 fs/nilfs2/bmap.c:68
nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
nilfs_mdt_submit_block+0x23d/0x520 fs/nilfs2/mdt.c:142
nilfs_mdt_read_block+0xa3/0x460 fs/nilfs2/mdt.c:176
nilfs_mdt_get_block+0x104/0x820 fs/nilfs2/mdt.c:251
nilfs_palloc_get_block+0x142/0x240 fs/nilfs2/alloc.c:216
nilfs_palloc_get_entry_block+0x1e8/0x2e0 fs/nilfs2/alloc.c:318
nilfs_ifile_get_inode_block+0xf0/0x1a0 fs/nilfs2/ifile.c:143
__nilfs_read_inode fs/nilfs2/inode.c:477 [inline]
nilfs_iget+0x253/0x8b0 fs/nilfs2/inode.c:603
nilfs_get_root_dentry+0x28/0x230 fs/nilfs2/super.c:904
nilfs_fill_super+0x3dd/0x5d0 fs/nilfs2/super.c:1078
nilfs_mount+0x613/0x9b0 fs/nilfs2/super.c:1317
legacy_get_tree+0xea/0x180 fs/fs_context.c:610
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f20b9a8bada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f20bac98f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f20b9a8bada
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007f20bac98fe0
RBP: 00007f20bac99020 R08: 00007f20bac99020 R09: 00000000200000c0
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020000100 R14: 00007f20bac98fe0 R15: 00000000200007c0
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 17576 Comm: syz-executor.0 Not tainted 6.0.0-syzkaller-05118-g833477fce7a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:nilfs_bmap_lookup_at_level+0xb9/0x350 fs/nilfs2/bmap.c:69
Code: 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 2b cf 93 fe 4c 8b 33 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 09 cf 93 fe 4c 89 ff 4c 89 ee 44 89
RSP: 0018:ffffc900161c7440 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88803644cdd0 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88803644cd38
RBP: ffffc900161c74f0 R08: dffffc0000000000 R09: ffffed1006c899a8
R10: ffffed1006c899a8 R11: 1ffff11006c899a7 R12: 0000000000000001
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88803644ccf8
FS: 00007f20bac99700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4cb9ecdff8 CR3: 000000002e3e0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
nilfs_mdt_submit_block+0x23d/0x520 fs/nilfs2/mdt.c:142
nilfs_mdt_read_block+0xa3/0x460 fs/nilfs2/mdt.c:176
nilfs_mdt_get_block+0x104/0x820 fs/nilfs2/mdt.c:251
nilfs_palloc_get_block+0x142/0x240 fs/nilfs2/alloc.c:216
nilfs_palloc_get_entry_block+0x1e8/0x2e0 fs/nilfs2/alloc.c:318
nilfs_ifile_get_inode_block+0xf0/0x1a0 fs/nilfs2/ifile.c:143
__nilfs_read_inode fs/nilfs2/inode.c:477 [inline]
nilfs_iget+0x253/0x8b0 fs/nilfs2/inode.c:603
nilfs_get_root_dentry+0x28/0x230 fs/nilfs2/super.c:904
nilfs_fill_super+0x3dd/0x5d0 fs/nilfs2/super.c:1078
nilfs_mount+0x613/0x9b0 fs/nilfs2/super.c:1317
legacy_get_tree+0xea/0x180 fs/fs_context.c:610
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x289/0xad0 fs/namespace.c:3040
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f20b9a8bada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f20bac98f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f20b9a8bada
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007f20bac98fe0
RBP: 00007f20bac99020 R08: 00007f20bac99020 R09: 00000000200000c0
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200000c0
R13: 0000000020000100 R14: 00007f20bac98fe0 R15: 00000000200007c0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nilfs_bmap_lookup_at_level+0xb9/0x350 fs/nilfs2/bmap.c:69
Code: 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 2b cf 93 fe 4c 8b 33 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 09 cf 93 fe 4c 89 ff 4c 89 ee 44 89
RSP: 0018:ffffc900161c7440 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88803644cdd0 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88803644cd38
RBP: ffffc900161c74f0 R08: dffffc0000000000 R09: ffffed1006c899a8
R10: ffffed1006c899a8 R11: 1ffff11006c899a7 R12: 0000000000000001
R13: 0000000000000002 R14: 0000000000000000 R15: ffff88803644ccf8
FS: 00007f20bac99700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc0e9fb25f0 CR3: 000000002e3e0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 48 89 d8 mov %rbx,%rax
3: 48 c1 e8 03 shr $0x3,%rax
7: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
c: 74 08 je 0x16
e: 48 89 df mov %rbx,%rdi
11: e8 2b cf 93 fe callq 0xfe93cf41
16: 4c 8b 33 mov (%rbx),%r14
19: 4c 89 f0 mov %r14,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 f7 mov %r14,%rdi
33: e8 09 cf 93 fe callq 0xfe93cf41
38: 4c 89 ff mov %r15,%rdi
3b: 4c 89 ee mov %r13,%rsi
3e: 44 rex.R
3f: 89 .byte 0x89