------------[ cut here ]------------
WARNING: CPU: 1 PID: 21643 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 21643 Comm: syz.2.5874 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 fd 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 80 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:ffffc90000dd0910 EFLAGS: 00010006
RAX: ffffffff81a08f90 RBX: 0000000000000008 RCX: ffff888022f53b80
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888022f53b87 R09: 1ffff110045ea770
R10: dffffc0000000000 R11: ffffed10045ea771 R12: ffff888022f55308
R13: 00007ffffffff000 R14: ffffc90000dd0988 R15: 0000000020000000
FS:  00007f1bade356c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000020c09000 CR4: 00000000003506e0
DR0: 0000000000000000 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_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
 bpf_prog_fe8bc24ffbd89bb9+0x40/0x368
 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:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x13e/0x1c0 kernel/softirq.c:408
Code: 8a e8 a6 3c 73 08 65 66 8b 05 ae 5b ba 7e 66 85 c0 75 54 bf 01 00 00 00 e8 bf 24 09 00 e8 6a 0f 36 00 fb 65 8b 05 5a 32 b9 7e <85> c0 75 05 e8 a9 3f b7 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90002dff740 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 97d46d49a85a5400
RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: ffffffff8a79f980
RBP: ffffc90002dff7d0 R08: ffffffff8d89e36f R09: 1ffffffff1b13c6d
R10: dffffc0000000000 R11: fffffbfff1b13c6e R12: ffffffff87e345b5
R13: ffff88807bde4000 R14: dffffc0000000000 R15: 1ffff920005bfee8
 rcu_read_unlock_bh include/linux/rcupdate.h:810 [inline]
 __dev_queue_xmit+0x1cbf/0x2f80 net/core/dev.c:4341
 __bpf_tx_skb net/core/filter.c:2127 [inline]
 __bpf_redirect_common net/core/filter.c:2175 [inline]
 __bpf_redirect+0xa46/0xee0 net/core/filter.c:2182
 ____bpf_clone_redirect net/core/filter.c:2462 [inline]
 bpf_clone_redirect+0x2e2/0x470 net/core/filter.c:2425
 bpf_prog_ddd136b54ea55eb4+0x19/0xd78
 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_test_run+0x2a8/0x800 net/bpf/test_run.c:119
 bpf_prog_test_run_skb+0x9cc/0x1180 net/bpf/test_run.c:674
 bpf_prog_test_run+0x31e/0x390 kernel/bpf/syscall.c:3374
 __sys_bpf+0x5a5/0x6f0 kernel/bpf/syscall.c:4675
 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
 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: 0033:0x7f1bafbdb799
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:00007f1bade35028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1bafe54fa0 RCX: 00007f1bafbdb799
RDX: 0000000000000050 RSI: 00002000000003c0 RDI: 000000000000000a
RBP: 00007f1bafc71c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1bafe55038 R14: 00007f1bafe54fa0 R15: 00007ffd46e95088
 </TASK>
----------------
Code disassembly (best guess):
   0:	8a e8                	mov    %al,%ch
   2:	a6                   	cmpsb  %es:(%rdi),%ds:(%rsi)
   3:	3c 73                	cmp    $0x73,%al
   5:	08 65 66             	or     %ah,0x66(%rbp)
   8:	8b 05 ae 5b ba 7e    	mov    0x7eba5bae(%rip),%eax        # 0x7eba5bbc
   e:	66 85 c0             	test   %ax,%ax
  11:	75 54                	jne    0x67
  13:	bf 01 00 00 00       	mov    $0x1,%edi
  18:	e8 bf 24 09 00       	call   0x924dc
  1d:	e8 6a 0f 36 00       	call   0x360f8c
  22:	fb                   	sti
  23:	65 8b 05 5a 32 b9 7e 	mov    %gs:0x7eb9325a(%rip),%eax        # 0x7eb93284
* 2a:	85 c0                	test   %eax,%eax <-- trapping instruction
  2c:	75 05                	jne    0x33
  2e:	e8 a9 3f b7 ff       	call   0xffb73fdc
  33:	48 c7 04 24 0e 36 e0 	movq   $0x45e0360e,(%rsp)
  3a:	45
  3b:	4b                   	rex.WXB
  3c:	c7                   	.byte 0xc7
  3d:	04 37                	add    $0x37,%al