------------[ cut here ]------------
WARNING: CPU: 1 PID: 4576 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 4576 Comm: syz.3.59 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c0 f3 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000dd0d30 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000008 RCX: ffff88802bed1dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10057da3b9
R10: ffffed10057da3b9 R11: 1ffff110057da3b8 R12: ffff88802bed3548
R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS:  00007f3da2ef16c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005f500000 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+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_bc47904a6221c669+0x72/0xdac
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [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+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x43f/0x510 arch/x86/mm/tlb.c:855
 flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
 __sysvec_call_function_single+0x98/0x240 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:next_tid mm/slub.c:2261 [inline]
RIP: 0010:slab_alloc_node mm/slub.c:3209 [inline]
RIP: 0010:slab_alloc mm/slub.c:3233 [inline]
RIP: 0010:__kmalloc+0xc4/0x330 mm/slub.c:4408
Code: 49 8b 7d 00 40 f6 c7 0f 0f 85 75 02 00 00 48 8d 47 08 48 89 f9 48 83 c9 08 48 39 c1 0f 85 63 02 00 00 41 8b 45 28 49 8b 1c 04 <48> 8d 4a 08 4c 89 e0 65 48 0f c7 0f 0f 94 c0 a8 01 74 9c 4c 89 64
RSP: 0018:ffffc9000346fa98 EFLAGS: 00000246
RAX: 0000000000000010 RBX: 0000000000000000 RCX: 000000000003dd18
RDX: 0000000000030f89 RSI: 0000000000000020 RDI: 000000000003dd10
RBP: 0000000000000d40 R08: dffffc0000000000 R09: fffffbfff1ad323e
R10: fffffbfff1ad323e R11: 1ffffffff1ad323d R12: ffff8880220729c0
R13: ffff888016841500 R14: 0000000000000018 R15: ffff888016841500
 kmalloc include/linux/slab.h:609 [inline]
 kzalloc include/linux/slab.h:735 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x27e/0x540 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x5cd/0x610 security/tomoyo/realpath.c:288
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_number_perm+0x1d5/0x5d0 security/tomoyo/file.c:723
 security_file_ioctl+0x6c/0xa0 security/security.c:1555
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x48/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f3da4c897ab
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:00007f3da2ef1050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3da4ed1038 RCX: 00007f3da4c897ab
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 0000000000000000 R08: 00007fff6974cdc7 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f3da4ed1038 R14: 00007fff6974cce0 R15: 00007fff6974cdc8
 </TASK>
----------------
Code disassembly (best guess):
   0:	49 8b 7d 00          	mov    0x0(%r13),%rdi
   4:	40 f6 c7 0f          	test   $0xf,%dil
   8:	0f 85 75 02 00 00    	jne    0x283
   e:	48 8d 47 08          	lea    0x8(%rdi),%rax
  12:	48 89 f9             	mov    %rdi,%rcx
  15:	48 83 c9 08          	or     $0x8,%rcx
  19:	48 39 c1             	cmp    %rax,%rcx
  1c:	0f 85 63 02 00 00    	jne    0x285
  22:	41 8b 45 28          	mov    0x28(%r13),%eax
  26:	49 8b 1c 04          	mov    (%r12,%rax,1),%rbx
* 2a:	48 8d 4a 08          	lea    0x8(%rdx),%rcx <-- trapping instruction
  2e:	4c 89 e0             	mov    %r12,%rax
  31:	65 48 0f c7 0f       	cmpxchg16b %gs:(%rdi)
  36:	0f 94 c0             	sete   %al
  39:	a8 01                	test   $0x1,%al
  3b:	74 9c                	je     0xffffffd9
  3d:	4c                   	rex.WR
  3e:	89                   	.byte 0x89
  3f:	64                   	fs