------------[ cut here ]------------
WARNING: CPU: 0 PID: 13321 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 13321 Comm: syz.4.2731 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 90 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 8d 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:ffffc90000007928 EFLAGS: 00010006
RAX: ffffffff81a0a790 RBX: 0000000000000008 RCX: ffff88802b7c9dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: 1ffffffff203aa18
R10: dffffc0000000000 R11: fffffbfff203aa19 R12: ffff88802b7cb548
R13: ffffc9000124c030 R14: ffffc90000007988 R15: 0000000000000000
FS:  00007f5ecb00e6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000054dc4000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000200000000300 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_f019f06cdb61aedb+0x3a/0xc48
 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_overflow_handler+0x1c2/0x4a0 kernel/events/core.c:10297
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_swevent_hrtimer+0x41b/0x5b0 kernel/events/core.c:10934
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4b4/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:array_index_mask_nospec+0x7/0x10 arch/x86/include/asm/barrier.h:41
Code: 7f 00 b1 00 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 00 cc 48 c7 c0 da ff ff ff c3 0f 1f 84 00 00 00 00 00 48 81 ff c1 01 00 00 <48> 19 c0 c3 00 00 cc cc 00 48 8d 87 80 00 00 00 c3 0f 1f 84 00 00
RSP: 0018:ffffc90002e6ff18 EFLAGS: 00000287
RAX: 00000000000000ca RBX: ffffc90002e6ff20 RCX: 249a4f837260fc00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 00000000000000ca
RBP: ffffc90002e6ff48 R08: ffffffff8d89f06f R09: 1ffffffff1b13e0d
R10: dffffc0000000000 R11: fffffbfff1b13e0e R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90002e6ff58 R15: 00000000000000ca
 do_syscall_x64 arch/x86/entry/common.c:49 [inline]
 do_syscall_64+0x3e/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5eccdb4dd9
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:00007f5ecb00e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f5ecd02dfa8 RCX: 00007f5eccdb4dd9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f5ecd02dfac
RBP: 00007f5ecd02dfa0 R08: 002e8f1266df8368 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5ecd02e038 R14: 00007ffc845440b0 R15: 00007ffc84544198
 </TASK>
----------------
Code disassembly (best guess):
   0:	7f 00                	jg     0x2
   2:	b1 00                	mov    $0x0,%cl
   4:	00 00                	add    %al,(%rax)
   6:	cc                   	int3
   7:	cc                   	int3
   8:	00 00                	add    %al,(%rax)
   a:	cc                   	int3
   b:	cc                   	int3
   c:	00 00                	add    %al,(%rax)
   e:	cc                   	int3
   f:	cc                   	int3
  10:	00 00                	add    %al,(%rax)
  12:	cc                   	int3
  13:	48 c7 c0 da ff ff ff 	mov    $0xffffffffffffffda,%rax
  1a:	c3                   	ret
  1b:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  22:	00
  23:	48 81 ff c1 01 00 00 	cmp    $0x1c1,%rdi
* 2a:	48 19 c0             	sbb    %rax,%rax <-- trapping instruction
  2d:	c3                   	ret
  2e:	00 00                	add    %al,(%rax)
  30:	cc                   	int3
  31:	cc                   	int3
  32:	00 48 8d             	add    %cl,-0x73(%rax)
  35:	87 80 00 00 00 c3    	xchg   %eax,-0x3d000000(%rax)
  3b:	0f                   	.byte 0xf
  3c:	1f                   	(bad)
  3d:	84 00                	test   %al,(%rax)