Oops: general protection fault, probably for non-canonical address 0xdffffc018711e7e7: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000c388f3f38-0x0000000c388f3f3f]
CPU: 0 UID: 0 PID: 8124 Comm: syz.4.272 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:smk_of_inode security/smack/smack.h:411 [inline]
RIP: 0010:smack_file_ioctl+0x2a5/0x370 security/smack/smack_lsm.c:1759
Code: 48 c1 e8 03 42 80 3c 38 00 74 0e 49 89 ce 48 89 cf e8 2f 52 ab fd 4c 89 f1 44 8b 35 35 88 2c 09 4c 03 31 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 0c 52 ab fd 49 8b 3e be 04 00 00
RSP: 0018:ffffc90004b0fd60 EFLAGS: 00010206
RAX: 000000018711e7e7 RBX: 1ffff92000961fb0 RCX: ffff88806400d1b8
RDX: ffffc90005ca4000 RSI: 0000000000000363 RDI: 0000000000000364
RBP: ffffc90004b0fe78 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90004b0fdc0 R11: fffff52000961fbe R12: ffffc90004b0fda0
R13: ffff88805c424fe0 R14: 0000000c388f3f38 R15: dffffc0000000000
FS:  00007fd3287566c0(0000) GS:ffff888125bc2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e00c44000 CR3: 000000005659c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 security_file_ioctl+0xef/0x2a0 security/security.c:2512
 __do_sys_ioctl fs/ioctl.c:591 [inline]
 __se_sys_ioctl+0x47/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd32a4fe199
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd328756028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd32a785fa0 RCX: 00007fd32a4fe199
RDX: 00002000000000c0 RSI: 00000000810c9365 RDI: 0000000000000004
RBP: 00007fd32a5950b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd32a786038 R14: 00007fd32a785fa0 R15: 00007ffcda3c7268
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:smk_of_inode security/smack/smack.h:411 [inline]
RIP: 0010:smack_file_ioctl+0x2a5/0x370 security/smack/smack_lsm.c:1759
Code: 48 c1 e8 03 42 80 3c 38 00 74 0e 49 89 ce 48 89 cf e8 2f 52 ab fd 4c 89 f1 44 8b 35 35 88 2c 09 4c 03 31 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 0c 52 ab fd 49 8b 3e be 04 00 00
RSP: 0018:ffffc90004b0fd60 EFLAGS: 00010206
RAX: 000000018711e7e7 RBX: 1ffff92000961fb0 RCX: ffff88806400d1b8
RDX: ffffc90005ca4000 RSI: 0000000000000363 RDI: 0000000000000364
RBP: ffffc90004b0fe78 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90004b0fdc0 R11: fffff52000961fbe R12: ffffc90004b0fda0
R13: ffff88805c424fe0 R14: 0000000c388f3f38 R15: dffffc0000000000
FS:  00007fd3287566c0(0000) GS:ffff888125bc2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e00c44000 CR3: 000000005659c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	48 c1 e8 03          	shr    $0x3,%rax
   4:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
   9:	74 0e                	je     0x19
   b:	49 89 ce             	mov    %rcx,%r14
   e:	48 89 cf             	mov    %rcx,%rdi
  11:	e8 2f 52 ab fd       	call   0xfdab5245
  16:	4c 89 f1             	mov    %r14,%rcx
  19:	44 8b 35 35 88 2c 09 	mov    0x92c8835(%rip),%r14d        # 0x92c8855
  20:	4c 03 31             	add    (%rcx),%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 f7             	mov    %r14,%rdi
  34:	e8 0c 52 ab fd       	call   0xfdab5245
  39:	49 8b 3e             	mov    (%r14),%rdi
  3c:	be                   	.byte 0xbe
  3d:	04 00                	add    $0x0,%al