------------[ cut here ]------------
WARNING: CPU: 0 PID: 9397 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 9397 Comm: syz.3.1220 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:ffffc90000007d30 EFLAGS: 00010006
RAX: ffffffff819ed760 RBX: 0000000000000000 RCX: ffff888027fdd940
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1004ffbb29
R10: ffffed1004ffbb29 R11: 1ffff11004ffbb28 R12: ffff888027fdf0c8
R13: 00007ffffffff000 R14: ffffc90000007da8 R15: 0000000000000000
FS:  00007f9ec26ca6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f22afdd66c0 CR3: 0000000023c2a000 CR4: 00000000003506f0
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_f3c4d654356a1293+0x34/0x3dc
 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:find_stack lib/stackdepot.c:209 [inline]
RIP: 0010:stack_depot_save+0x16a/0x440 lib/stackdepot.c:280
Code: f4 7c 42 12 41 89 ee 41 81 e6 ff ff 0f 00 4f 8b 7c f5 00 4d 85 ff 74 58 89 d9 eb 08 4d 8b 3f 4d 85 ff 74 4c 41 39 6f 08 75 f2 <41> 39 5f 0c 75 ec 31 f6 4c 8b 04 f7 4d 3b 44 f7 18 75 df 48 ff c6
RSP: 0018:ffffc90002f3f8c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 0000000000000007
RDX: 0000000000000c40 RSI: 0000000007ff733a RDI: ffffc90002f3f920
RBP: 000000006199ec0e R08: 0000000069828803 R09: 0000000000000002
R10: 00000000646a2c6a R11: 000000004c703799 R12: ffff88805c4a3000
R13: ffff88823b000000 R14: 000000000009ec0e R15: ffff88802bd920c0
 kasan_save_stack mm/kasan/common.c:40 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xcc/0xf0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:609 [inline]
 tomoyo_realpath_from_path+0x118/0x610 security/tomoyo/realpath.c:254
 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: 0033:0x7f9ec446282b
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:00007f9ec26ca050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9ec46aa038 RCX: 00007f9ec446282b
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffec5120dc7
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f9ec46aa038 R14: 00007ffec5120ce0 R15: 00007ffec5120dc8
 </TASK>
----------------
Code disassembly (best guess):
   0:	f4                   	hlt
   1:	7c 42                	jl     0x45
   3:	12 41 89             	adc    -0x77(%rcx),%al
   6:	ee                   	out    %al,(%dx)
   7:	41 81 e6 ff ff 0f 00 	and    $0xfffff,%r14d
   e:	4f 8b 7c f5 00       	mov    0x0(%r13,%r14,8),%r15
  13:	4d 85 ff             	test   %r15,%r15
  16:	74 58                	je     0x70
  18:	89 d9                	mov    %ebx,%ecx
  1a:	eb 08                	jmp    0x24
  1c:	4d 8b 3f             	mov    (%r15),%r15
  1f:	4d 85 ff             	test   %r15,%r15
  22:	74 4c                	je     0x70
  24:	41 39 6f 08          	cmp    %ebp,0x8(%r15)
  28:	75 f2                	jne    0x1c
* 2a:	41 39 5f 0c          	cmp    %ebx,0xc(%r15) <-- trapping instruction
  2e:	75 ec                	jne    0x1c
  30:	31 f6                	xor    %esi,%esi
  32:	4c 8b 04 f7          	mov    (%rdi,%rsi,8),%r8
  36:	4d 3b 44 f7 18       	cmp    0x18(%r15,%rsi,8),%r8
  3b:	75 df                	jne    0x1c
  3d:	48 ff c6             	inc    %rsi