------------[ cut here ]------------
WARNING: CPU: 1 PID: 4506 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4506 Comm: syz.0.95 Not tainted 5.15.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 ab ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 94 ba d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0d28 EFLAGS: 00010006
RAX: ffffffff81aacafc RBX: 0000000000000000 RCX: ffff888022a48000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaca0d R09: ffffed1004549001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc90000dd0da8
FS:  00007f37a30406c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000002c02b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
 bpf_prog_bcff4640d6a7c5a9+0x5e/0xb28
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xed/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x480/0x590 arch/x86/mm/tlb.c:851
 flush_smp_call_function_queue+0x2b5/0x760 kernel/smp.c:628
 __sysvec_call_function_single+0x9a/0x250 arch/x86/kernel/smp.c:248
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
 sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:__should_failslab+0x8d/0xd0 mm/failslab.c:33
Code: 48 c1 e8 03 42 0f b6 04 30 84 c0 75 49 f6 45 03 02 75 07 31 c0 5b 41 5e 5d c3 48 83 c3 1c 48 89 d8 48 c1 e8 03 42 0f b6 04 30 <84> c0 75 12 8b 33 48 c7 c7 20 60 bf 8c 5b 41 5e 5d e9 cd 15 67 02
RSP: 0018:ffffc90002e2fa58 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: ffff88801744151c RCX: ffff888022a48000
RDX: ffff888022a48000 RSI: 0000000000000d40 RDI: ffff888017441500
RBP: 0000000000000d40 R08: dffffc0000000000 R09: fffffbfff1c150de
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888017441500
R13: ffff888017441500 R14: dffffc0000000000 R15: 0000000000000001
 should_failslab+0x5/0x20 mm/slab_common.c:1344
 slab_pre_alloc_hook+0x53/0xc0 mm/slab.h:494
 slab_alloc_node mm/slub.c:3134 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 __kmalloc+0x6e/0x300 mm/slub.c:4403
 kmalloc include/linux/slab.h:596 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x26b/0x530 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x5a2/0x5e0 security/tomoyo/realpath.c:288
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x225/0x810 security/tomoyo/file.c:723
 security_file_ioctl+0x6d/0xa0 security/security.c:1555
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x47/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f37a51d692b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f37a3040060 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f37a51d692b
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 00007f37a53effa0 R08: 00007ffcb83c4fc7 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f37a53effac
R13: 0000000000000001 R14: 00007ffcb83c4ee0 R15: 00007ffcb83c4fc8
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 c1 e8 03          	shr    $0x3,%rax
   4:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
   9:	84 c0                	test   %al,%al
   b:	75 49                	jne    0x56
   d:	f6 45 03 02          	testb  $0x2,0x3(%rbp)
  11:	75 07                	jne    0x1a
  13:	31 c0                	xor    %eax,%eax
  15:	5b                   	pop    %rbx
  16:	41 5e                	pop    %r14
  18:	5d                   	pop    %rbp
  19:	c3                   	ret
  1a:	48 83 c3 1c          	add    $0x1c,%rbx
  1e:	48 89 d8             	mov    %rbx,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
* 2a:	84 c0                	test   %al,%al <-- trapping instruction
  2c:	75 12                	jne    0x40
  2e:	8b 33                	mov    (%rbx),%esi
  30:	48 c7 c7 20 60 bf 8c 	mov    $0xffffffff8cbf6020,%rdi
  37:	5b                   	pop    %rbx
  38:	41 5e                	pop    %r14
  3a:	5d                   	pop    %rbp
  3b:	e9 cd 15 67 02       	jmp    0x267160d