BUG: unable to handle page fault for address: ffffffffff600000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 2c24067 P4D 2c24067 PUD 2c26067 PMD 2c49067 PTE 0
Oops: 0000 [#1] SMP
CPU: 0 PID: 2136 Comm: udevd Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:copy_from_kernel_nofault mm/maccess.c:31 [inline]
RIP: 0010:copy_from_kernel_nofault+0x4e/0xf0 mm/maccess.c:25
Code: 25 40 6f 01 00 83 80 f8 14 00 00 01 49 83 fc 07 76 3f 31 c9 eb 12 49 83 ec 08 48 83 c5 08 48 83 c3 08 49 83 fc 07 76 29 89 c8 <48> 8b 13 85 c0 48 89 55 00 74 e1 65 48 8b 04 25 40 6f 01 00 83 a8
RSP: 0018:ffffc90006afbaf0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffff600000 RCX: 0000000000000000
RDX: 00007fffffffffff RSI: 0000000000000008 RDI: ffffffffff600000
RBP: ffffc90006afbb70 R08: 0000000000000246 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88810ca19e00 R12: 0000000000000008
R13: ffffffffff600000 R14: ffff88810c7c3000 R15: 0000000000000001
FS:  00007f368af30c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 000000010c822000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bpf_probe_read_kernel_common kernel/trace/bpf_trace.c:225 [inline]
 ____bpf_probe_read_kernel kernel/trace/bpf_trace.c:237 [inline]
 bpf_probe_read_kernel+0x2e/0x60 kernel/trace/bpf_trace.c:234
 ___bpf_prog_run+0xe0/0x19a0 kernel/bpf/core.c:1513
 __bpf_prog_run32+0x34/0x60 kernel/bpf/core.c:1678
 bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2088 [inline]
 bpf_trace_run2+0x52/0xc0 kernel/trace/bpf_trace.c:2125
 trace_kfree include/trace/events/kmem.h:138 [inline]
 kfree+0x1e0/0x500 mm/slub.c:4108
 tomoyo_realpath_from_path+0x37/0x180 security/tomoyo/realpath.c:253
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0xe9/0x1e0 security/tomoyo/file.c:822
 security_inode_getattr+0x25/0x40 security/security.c:1280
 vfs_getattr fs/stat.c:121 [inline]
 vfs_statx+0x80/0x120 fs/stat.c:189
 vfs_fstatat fs/stat.c:207 [inline]
 __do_sys_newfstatat+0x31/0x70 fs/stat.c:376
 do_syscall_64+0x2e/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f368b05b5f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffddb88b908 EFLAGS: 00000206 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f368b133460 RCX: 00007f368b05b5f4
RDX: 00007ffddb88b910 RSI: 00007f368b0f8130 RDI: 000000000000000c
RBP: 0000559f401c5ea0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000000006
R13: 0000000000000006 R14: 0000559f401c5ea0 R15: 0000000000000000
Modules linked in:
CR2: ffffffffff600000
---[ end trace 0b9394f3a8b89183 ]---
RIP: 0010:copy_from_kernel_nofault mm/maccess.c:31 [inline]
RIP: 0010:copy_from_kernel_nofault+0x4e/0xf0 mm/maccess.c:25
Code: 25 40 6f 01 00 83 80 f8 14 00 00 01 49 83 fc 07 76 3f 31 c9 eb 12 49 83 ec 08 48 83 c5 08 48 83 c3 08 49 83 fc 07 76 29 89 c8 <48> 8b 13 85 c0 48 89 55 00 74 e1 65 48 8b 04 25 40 6f 01 00 83 a8
RSP: 0018:ffffc90006afbaf0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffff600000 RCX: 0000000000000000
RDX: 00007fffffffffff RSI: 0000000000000008 RDI: ffffffffff600000
RBP: ffffc90006afbb70 R08: 0000000000000246 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88810ca19e00 R12: 0000000000000008
R13: ffffffffff600000 R14: ffff88810c7c3000 R15: 0000000000000001
FS:  00007f368af30c80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600000 CR3: 000000010c822000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	25 40 6f 01 00       	and    $0x16f40,%eax
   5:	83 80 f8 14 00 00 01 	addl   $0x1,0x14f8(%rax)
   c:	49 83 fc 07          	cmp    $0x7,%r12
  10:	76 3f                	jbe    0x51
  12:	31 c9                	xor    %ecx,%ecx
  14:	eb 12                	jmp    0x28
  16:	49 83 ec 08          	sub    $0x8,%r12
  1a:	48 83 c5 08          	add    $0x8,%rbp
  1e:	48 83 c3 08          	add    $0x8,%rbx
  22:	49 83 fc 07          	cmp    $0x7,%r12
  26:	76 29                	jbe    0x51
  28:	89 c8                	mov    %ecx,%eax
* 2a:	48 8b 13             	mov    (%rbx),%rdx <-- trapping instruction
  2d:	85 c0                	test   %eax,%eax
  2f:	48 89 55 00          	mov    %rdx,0x0(%rbp)
  33:	74 e1                	je     0x16
  35:	65 48 8b 04 25 40 6f 	mov    %gs:0x16f40,%rax
  3c:	01 00
  3e:	83                   	.byte 0x83
  3f:	a8                   	.byte 0xa8