------------[ cut here ]------------
WARNING: CPU: 0 PID: 3558 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 3558 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 4d 97 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 d0 93 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:ffffc900000072d0 EFLAGS: 00010246
RAX: ffffffff81a068e0 RBX: 0000000000000008 RCX: ffff88807cfa0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8f103008 R09: ffffffff8f103018
R10: ffffffff8f103010 R11: ffffffff8f103003 R12: ffff88807cfa1788
R13: dffffc0000000000 R14: ffffc90000007338 R15: 0000000000000000
FS:  00007fcf8a076880(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1daca17dac CR3: 000000007cc4d000 CR4: 00000000003526f0
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_user kernel/trace/bpf_trace.c:166 [inline]
 bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
 bpf_prog_a80a2db5f03b572f+0x3d/0x300
 bpf_dispatcher_nop_func include/linux/bpf.h:889 [inline]
 __bpf_prog_run include/linux/filter.h:621 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline]
 bpf_prog_run_clear_cb+0x108/0x1a0 include/linux/filter.h:806
 run_filter+0x12a/0x220 net/packet/af_packet.c:2101
 packet_rcv+0x3cc/0x1260 net/packet/af_packet.c:2174
 dev_queue_xmit_nit+0xa48/0xae0 net/core/dev.c:2386
 xmit_one net/core/dev.c:3657 [inline]
 dev_hard_start_xmit+0x140/0x7d0 net/core/dev.c:3678
 __dev_queue_xmit+0x195d/0x2e50 net/core/dev.c:4305
 neigh_hh_output include/net/neighbour.h:493 [inline]
 neigh_output include/net/neighbour.h:507 [inline]
 ip6_finish_output2+0x1052/0x1530 net/ipv6/ip6_output.c:130
 dst_output include/net/dst.h:452 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xb7a/0x1410 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x367/0x640 net/ipv6/addrconf.c:3966
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 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:blkcg_maybe_throttle_current+0x0/0x6e0 block/blk-cgroup.c:1743
Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 0b ff ff ff 4c 89 ff e8 d6 8f e7 fd e9 fe fe ff ff 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 bb 00 00 00 00 00 fc
RSP: 0018:ffffc900012dfec8 EFLAGS: 00000246
RAX: dd1205f9829bf300 RBX: ffffc900012dff58 RCX: dd1205f9829bf300
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: 0000000000000000
RBP: ffffc900012dff48 R08: 000000000000000a R09: ffffffff89e000ca
R10: 0000000000000002 R11: 00000000f4d53115 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88807cfa0000 R15: ffff88807cfa0000
 tracehook_notify_resume include/linux/tracehook.h:199 [inline]
 exit_to_user_mode_loop+0xd1/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fcf8a1ceb0a
Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7
RSP: 002b:00007fff14fe3a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: fffffffffffffffe RBX: 00007fff14fe3f10 RCX: 00007fcf8a1ceb0a
RDX: 00007fff14fe3a80 RSI: 00007fff14fe3f10 RDI: 00000000ffffff9c
RBP: 000056066cf5f910 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff14fe3b10
R13: 0000000000000100 R14: 0000560640ba8be0 R15: 00007fff14fe4590
 </TASK>
----------------
Code disassembly (best guess):
   0:	5b                   	pop    %rbx
   1:	41 5c                	pop    %r12
   3:	41 5d                	pop    %r13
   5:	41 5e                	pop    %r14
   7:	41 5f                	pop    %r15
   9:	5d                   	pop    %rbp
   a:	c3                   	ret
   b:	44 89 f9             	mov    %r15d,%ecx
   e:	80 e1 07             	and    $0x7,%cl
  11:	80 c1 03             	add    $0x3,%cl
  14:	38 c1                	cmp    %al,%cl
  16:	0f 8c 0b ff ff ff    	jl     0xffffff27
  1c:	4c 89 ff             	mov    %r15,%rdi
  1f:	e8 d6 8f e7 fd       	call   0xfde78ffa
  24:	e9 fe fe ff ff       	jmp    0xffffff27
  29:	90                   	nop
* 2a:	55                   	push   %rbp <-- trapping instruction
  2b:	41 57                	push   %r15
  2d:	41 56                	push   %r14
  2f:	41 55                	push   %r13
  31:	41 54                	push   %r12
  33:	53                   	push   %rbx
  34:	48 83 ec 18          	sub    $0x18,%rsp
  38:	48                   	rex.W
  39:	bb 00 00 00 00       	mov    $0x0,%ebx
  3e:	00 fc                	add    %bh,%ah