loop1: 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: 30720 Comm: syz-executor.1 Not tainted 6.0.0-syzkaller-03015-g2bca25eaeba6 #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: 0033:0x7f1a06e8bada 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:00007f1a07f8bf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f1a06e8bada RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007f1a07f8bfe0 RBP: 00007f1a07f8c020 R08: 00007f1a07f8c020 R09: 00000000200000c0 R10: 0000000000000080 R11: 0000000000000202 R12: 00000000200000c0 R13: 0000000020000100 R14: 00007f1a07f8bfe0 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: 0 PID: 30720 Comm: syz-executor.1 Not tainted 6.0.0-syzkaller-03015-g2bca25eaeba6 #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: 0000:ffffc90004cbf440 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880329f3a98 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880329f3a00 RBP: ffffc90004cbf4f0 R08: dffffc0000000000 R09: ffffed100653e741 R10: ffffed100653e741 R11: 1ffff1100653e740 R12: 0000000000000001 R13: 0000000000000002 R14: 0000000000000000 R15: ffff8880329f39c0 FS: 00007f1a07f8c700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110f30085b CR3: 000000002b0c5000 CR4: 00000000003506f0 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: 0033:0x7f1a06e8bada 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:00007f1a07f8bf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f1a06e8bada RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007f1a07f8bfe0 RBP: 00007f1a07f8c020 R08: 00007f1a07f8c020 R09: 00000000200000c0 R10: 0000000000000080 R11: 0000000000000202 R12: 00000000200000c0 R13: 0000000020000100 R14: 00007f1a07f8bfe0 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: 0000:ffffc90004cbf440 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880329f3a98 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880329f3a00 RBP: ffffc90004cbf4f0 R08: dffffc0000000000 R09: ffffed100653e741 R10: ffffed100653e741 R11: 1ffff1100653e740 R12: 0000000000000001 R13: 0000000000000002 R14: 0000000000000000 R15: ffff8880329f39c0 FS: 00007f1a07f8c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110f337e6d CR3: 000000002b0c5000 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