loop0: detected capacity change from 0 to 64
minix: Unknown parameter 'pcr'
loop0: detected capacity change from 0 to 4096
ntfs3(loop0): Different NTFS sector size (4096) and media sector size (512).
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 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
register_lock_class+0xff/0x320 kernel/locking/lockdep.c:1299
__lock_acquire+0xae/0x2cf0 kernel/locking/lockdep.c:5112
lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868
down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590
ntfs_set_size+0x140/0x200 fs/ntfs3/inode.c:860
ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:387
ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:808
notify_change+0xc1a/0xf40 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
vfs_truncate+0x493/0x520 fs/open.c:118
do_sys_truncate+0xdb/0x190 fs/open.c:141
__do_sys_truncate fs/open.c:153 [inline]
__se_sys_truncate fs/open.c:151 [inline]
__x64_sys_truncate+0x5b/0x70 fs/open.c:151
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f955438f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f9555141038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f95545e5fa0 RCX: 00007f955438f7c9
RDX: 0000000000000000 RSI: 0000000000001a71 RDI: 0000200000000280
RBP: 00007f9554413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f95545e6038 R14: 00007f95545e5fa0 R15: 00007ffd6cd10b68
ntfs3(loop0): ino=19, "file1" attr_set_size
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(sem->magic != sem): count = 0x1, magic = 0x0, owner = 0xffff88801f36a4c0, curr 0xffff88801f36a4c0, list not empty
WARNING: kernel/locking/rwsem.c:1375 at 0x0, CPU#0: syz.0.0/5342
Modules linked in:
CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__up_write kernel/locking/rwsem.c:1375 [inline]
RIP: 0010:up_write+0x2b5/0x410 kernel/locking/rwsem.c:1643
Code: c0 e0 23 6b 8b 49 c7 c2 00 24 6b 8b 4c 0f 44 d0 48 8b 7c 24 10 48 c7 c6 60 24 6b 8b 48 8b 54 24 08 48 8b 0c 24 4d 89 f9 41 52 <67> 48 0f b9 3a 48 83 c4 08 e8 bd a4 ea 02 e9 ae fd ff ff 90 0f 0b
RSP: 0018:ffffc9000d4a78a8 EFLAGS: 00010207
RAX: ffffffff8b6b23e0 RBX: ffff88805185d158 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b6b2460 RDI: ffffffff8f838130
RBP: ffff88805185d1c0 R08: ffff88801f36a4c0 R09: ffff88801f36a4c0
R10: ffffffff8b6b2400 R11: ffffed100a30ba2d R12: ffff88805185d1b0
R13: dffffc0000000000 R14: 1ffff1100a30ba38 R15: ffff88801f36a4c0
FS: 00007f95551416c0(0000) GS:ffff88808d6b5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e13a152b0 CR3: 000000003e0fc000 CR4: 0000000000352ef0
Call Trace:
ntfs_set_size+0x172/0x200 fs/ntfs3/inode.c:865
ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:387
ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:808
notify_change+0xc1a/0xf40 fs/attr.c:546
do_truncate+0x1a4/0x220 fs/open.c:68
vfs_truncate+0x493/0x520 fs/open.c:118
do_sys_truncate+0xdb/0x190 fs/open.c:141
__do_sys_truncate fs/open.c:153 [inline]
__se_sys_truncate fs/open.c:151 [inline]
__x64_sys_truncate+0x5b/0x70 fs/open.c:151
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f955438f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f9555141038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f95545e5fa0 RCX: 00007f955438f7c9
RDX: 0000000000000000 RSI: 0000000000001a71 RDI: 0000200000000280
RBP: 00007f9554413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f95545e6038 R14: 00007f95545e5fa0 R15: 00007ffd6cd10b68
----------------
Code disassembly (best guess):
0: c0 e0 23 shl $0x23,%al
3: 6b 8b 49 c7 c2 00 24 imul $0x24,0xc2c749(%rbx),%ecx
a: 6b 8b 4c 0f 44 d0 48 imul $0x48,-0x2fbbf0b4(%rbx),%ecx
11: 8b 7c 24 10 mov 0x10(%rsp),%edi
15: 48 c7 c6 60 24 6b 8b mov $0xffffffff8b6b2460,%rsi
1c: 48 8b 54 24 08 mov 0x8(%rsp),%rdx
21: 48 8b 0c 24 mov (%rsp),%rcx
25: 4d 89 f9 mov %r15,%r9
28: 41 52 push %r10
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 48 83 c4 08 add $0x8,%rsp
33: e8 bd a4 ea 02 call 0x2eaa4f5
38: e9 ae fd ff ff jmp 0xfffffdeb
3d: 90 nop
3e: 0f 0b ud2