------------[ cut here ]------------
WARNING: CPU: 1 PID: 15838 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 15838 Comm: syz.9.3096 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 0d f6 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 90 f2 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:ffffc90000dd0d40 EFLAGS: 00010006
RAX: ffffffff819ed980 RBX: 0000000000000000 RCX: ffff88802429bb80
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8eebf048 R09: ffffffff8eebf058
R10: ffffffff8eebf050 R11: ffffffff8eebf043 R12: ffff88802429d308
R13: dffffc0000000000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS:  00007fa2ec9406c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572300588 CR3: 0000000043bdd000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_8848bede53a6b60e+0x34/0xf78
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x242/0x2d0 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:jhash2 include/linux/jhash.h:130 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:180 [inline]
RIP: 0010:stack_depot_save+0xbd/0x440 lib/stackdepot.c:272
Code: 45 29 f2 44 89 f6 c1 c6 10 44 31 d6 45 01 de 89 f1 c1 c1 13 41 29 f3 44 31 d9 44 01 f6 41 29 ce 89 cd c1 c5 04 44 31 f5 01 f1 <41> 83 c1 fd 49 83 c0 0c 41 83 f9 03 77 8f 45 89 c9 42 ff 24 cd 60
RSP: 0018:ffffc9000300f860 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00000000d8f062ed
RDX: 0000000000000d40 RSI: 0000000094f9f533 RDI: ffffc9000300f8c0
RBP: 000000006edcb7b1 R08: ffffc9000300f8c0 R09: 0000000000000010
R10: 00000000d930e6f2 R11: 0000000098d197f2 R12: ffff888023ddbde0
R13: 000000000000000d R14: 0000000051ba6c15 R15: ffffc9000300f8c0
 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:612 [inline]
 kzalloc include/linux/slab.h:738 [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: 0033:0x7fa2ee6d934b
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:00007fa2ec940050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa2ee930038 RCX: 00007fa2ee6d934b
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8
RBP: 0000000000000000 R08: 00007ffc1e871a17 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fa2ee930038 R14: 00007ffc1e871930 R15: 00007ffc1e871a18
 </TASK>
----------------
Code disassembly (best guess):
   0:	45 29 f2             	sub    %r14d,%r10d
   3:	44 89 f6             	mov    %r14d,%esi
   6:	c1 c6 10             	rol    $0x10,%esi
   9:	44 31 d6             	xor    %r10d,%esi
   c:	45 01 de             	add    %r11d,%r14d
   f:	89 f1                	mov    %esi,%ecx
  11:	c1 c1 13             	rol    $0x13,%ecx
  14:	41 29 f3             	sub    %esi,%r11d
  17:	44 31 d9             	xor    %r11d,%ecx
  1a:	44 01 f6             	add    %r14d,%esi
  1d:	41 29 ce             	sub    %ecx,%r14d
  20:	89 cd                	mov    %ecx,%ebp
  22:	c1 c5 04             	rol    $0x4,%ebp
  25:	44 31 f5             	xor    %r14d,%ebp
  28:	01 f1                	add    %esi,%ecx
* 2a:	41 83 c1 fd          	add    $0xfffffffd,%r9d <-- trapping instruction
  2e:	49 83 c0 0c          	add    $0xc,%r8
  32:	41 83 f9 03          	cmp    $0x3,%r9d
  36:	77 8f                	ja     0xffffffc7
  38:	45 89 c9             	mov    %r9d,%r9d
  3b:	42                   	rex.X
  3c:	ff                   	.byte 0xff
  3d:	24 cd                	and    $0xcd,%al
  3f:	60                   	(bad)