------------[ cut here ]------------
WARNING: CPU: 1 PID: 10345 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 10345 Comm: syz.5.1757 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 7d 94 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 00 91 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: ffffffff81a07ea0 RBX: 0000000000000000 RCX: ffff88807eedbb80
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807eedbb87 R09: 1ffff1100fddb770
R10: dffffc0000000000 R11: ffffed100fddb771 R12: ffff88807eedd308
R13: 00007ffffffff000 R14: ffffc90000dd0da8 R15: 0000000000000000
FS:  00007f47f45396c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc7dde1910 CR3: 0000000091a04000 CR4: 00000000003506e0
DR0: 0000000000000000 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_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_f3c4d654356a1293+0x34/0xa5c
 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+0x163/0x2e0 kernel/trace/bpf_trace.c:1915
 trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
 flush_tlb_func+0x4c7/0x5b0 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:copy_thread+0x2bb/0x760 arch/x86/kernel/process.c:-1
Code: 7c 24 10 0f 85 e2 03 00 00 66 41 89 ae a2 18 00 00 4d 8d 66 2c 4c 89 e5 48 c1 ed 03 42 0f b6 44 2d 00 84 c0 0f 85 da 03 00 00 <48> 81 c3 58 7f 00 00 41 f6 44 24 02 20 0f 85 c0 01 00 00 4c 89 64
RSP: 0018:ffffc90002247a28 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc900033e8000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffffffff8a2b1c00 RDI: ffff8880678b3662
RBP: 1ffff1100cf163bd R08: ffff8880b913b30b R09: 1ffff11017227661
R10: dffffc0000000000 R11: ffffed1017227662 R12: ffff8880678b1dec
R13: dffffc0000000000 R14: ffff8880678b1dc0 R15: ffffc900033f0000
 copy_process+0x190d/0x3e20 kernel/fork.c:2299
 kernel_clone+0x23f/0x990 kernel/fork.c:2679
 __do_sys_clone kernel/fork.c:2796 [inline]
 __se_sys_clone kernel/fork.c:2780 [inline]
 __x64_sys_clone+0x19a/0x210 kernel/fork.c:2780
 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: 0033:0x7f47f62ddcb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f47f4538fd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f47f6558fa0 RCX: 00007f47f62ddcb9
RDX: 0000200000000180 RSI: 0000200000000080 RDI: 0000000080000000
RBP: 00007f47f634bbf7 R08: 0000200000000240 R09: 0000200000000240
R10: 00002000000001c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007f47f6559038 R14: 00007f47f6558fa0 R15: 00007ffecbabb038
 </TASK>
----------------
Code disassembly (best guess):
   0:	7c 24                	jl     0x26
   2:	10 0f                	adc    %cl,(%rdi)
   4:	85 e2                	test   %esp,%edx
   6:	03 00                	add    (%rax),%eax
   8:	00 66 41             	add    %ah,0x41(%rsi)
   b:	89 ae a2 18 00 00    	mov    %ebp,0x18a2(%rsi)
  11:	4d 8d 66 2c          	lea    0x2c(%r14),%r12
  15:	4c 89 e5             	mov    %r12,%rbp
  18:	48 c1 ed 03          	shr    $0x3,%rbp
  1c:	42 0f b6 44 2d 00    	movzbl 0x0(%rbp,%r13,1),%eax
  22:	84 c0                	test   %al,%al
  24:	0f 85 da 03 00 00    	jne    0x404
* 2a:	48 81 c3 58 7f 00 00 	add    $0x7f58,%rbx <-- trapping instruction
  31:	41 f6 44 24 02 20    	testb  $0x20,0x2(%r12)
  37:	0f 85 c0 01 00 00    	jne    0x1fd
  3d:	4c                   	rex.WR
  3e:	89                   	.byte 0x89
  3f:	64                   	fs