general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157]
CPU: 0 PID: 1183 Comm: syz-executor.2 Not tainted 6.6.0-syzkaller-14651-gd2f51b3516da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:__lock_acquire+0x10d/0x7f70 kernel/locking/lockdep.c:5004
Code: 85 75 18 00 00 83 3d 6d 4a 93 0d 00 48 89 9c 24 10 01 00 00 0f 84 f8 0f 00 00 83 3d bc 50 12 0c 00 74 34 48 89 d0 48 c1 e8 03 <42> 80 3c 00 00 74 1a 48 89 d7 e8 04 8a 7d 00 48 8b 94 24 80 00 00
RSP: 0018:ffffc90003d5f600 EFLAGS: 00010002
RAX: 000000000000002a RBX: 1ffff920007abee4 RCX: 0000000000000000
RDX: 0000000000000150 RSI: 0000000000000000 RDI: 0000000000000150
RBP: ffffc90003d5f8c8 R08: dffffc0000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1e00d5e R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff888074e70000
FS: 00007f7f93b986c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7263175198 CR3: 000000001fbae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5753
down_write+0x3a/0x50 kernel/locking/rwsem.c:1579
inode_lock include/linux/fs.h:802 [inline]
simple_recursive_removal+0x8d/0x7c0 fs/libfs.c:520
debugfs_remove+0x49/0x70 fs/debugfs/inode.c:764
ptp_release+0x70/0x1e0 drivers/ptp/ptp_chardev.c:144
ptp_read+0x17f/0x820 drivers/ptp/ptp_chardev.c:589
posix_clock_read+0x12f/0x190 kernel/time/posix-clock.c:51
vfs_read+0x289/0xb00 fs/read_write.c:468
ksys_read+0x1a0/0x2c0 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f7f92e7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7f93b980c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f7f92f9c120 RCX: 00007f7f92e7cae9
RDX: 000000000000000e RSI: 0000000020000000 RDI: 0000000000000005
RBP: 00007f7f92ec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7f92f9c120 R15: 00007ffdd2aa5dc8
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x10d/0x7f70 kernel/locking/lockdep.c:5004
Code: 85 75 18 00 00 83 3d 6d 4a 93 0d 00 48 89 9c 24 10 01 00 00 0f 84 f8 0f 00 00 83 3d bc 50 12 0c 00 74 34 48 89 d0 48 c1 e8 03 <42> 80 3c 00 00 74 1a 48 89 d7 e8 04 8a 7d 00 48 8b 94 24 80 00 00
RSP: 0018:ffffc90003d5f600 EFLAGS: 00010002
RAX: 000000000000002a RBX: 1ffff920007abee4 RCX: 0000000000000000
RDX: 0000000000000150 RSI: 0000000000000000 RDI: 0000000000000150
RBP: ffffc90003d5f8c8 R08: dffffc0000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1e00d5e R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff888074e70000
FS: 00007f7f93b986c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7263175198 CR3: 000000001fbae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 85 75 18 test %esi,0x18(%rbp)
3: 00 00 add %al,(%rax)
5: 83 3d 6d 4a 93 0d 00 cmpl $0x0,0xd934a6d(%rip) # 0xd934a79
c: 48 89 9c 24 10 01 00 mov %rbx,0x110(%rsp)
13: 00
14: 0f 84 f8 0f 00 00 je 0x1012
1a: 83 3d bc 50 12 0c 00 cmpl $0x0,0xc1250bc(%rip) # 0xc1250dd
21: 74 34 je 0x57
23: 48 89 d0 mov %rdx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 00 00 cmpb $0x0,(%rax,%r8,1) <-- trapping instruction
2f: 74 1a je 0x4b
31: 48 89 d7 mov %rdx,%rdi
34: e8 04 8a 7d 00 call 0x7d8a3d
39: 48 rex.W
3a: 8b .byte 0x8b
3b: 94 xchg %eax,%esp
3c: 24 80 and $0x80,%al