------------[ cut here ]------------
WARNING: CPU: 0 PID: 11985 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 11985 Comm: syz.0.33974 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:ffffc90000006d28 EFLAGS: 00010246
RAX: ffffffff81a0a790 RBX: 0000000000000000 RCX: ffff88803c539dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc90000007157 R09: ffffc90000007124
R10: dffffc0000000000 R11: fffff52000000e2b R12: ffff88803c53b548
R13: ffffc9000110b030 R14: ffffc90000006d88 R15: 0000000000000000
FS: 00007fbbfc69d6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ea18ff8 CR3: 000000007e3a2000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
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_f2594087b0f175cc+0x32/0x738
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_prog_run_pin_on_cpu include/linux/filter.h:652 [inline]
bpf_flow_dissect+0x12b/0x3f0 net/core/flow_dissector.c:896
__skb_flow_dissect+0x792/0x60b0 net/core/flow_dissector.c:1024
skb_flow_dissect_flow_keys include/linux/skbuff.h:1390 [inline]
___skb_get_hash+0x55/0x680 net/core/flow_dissector.c:1583
__skb_get_hash+0xd2/0x270 net/core/flow_dissector.c:1648
skb_get_hash include/linux/skbuff.h:1432 [inline]
skb_tx_hash net/core/dev.c:3256 [inline]
netdev_pick_tx+0x335/0xad0 net/core/dev.c:4153
netdev_core_pick_tx+0x12e/0x2e0 net/core/dev.c:4186
__dev_queue_xmit+0x756/0x2f80 net/core/dev.c:4261
neigh_hh_output include/net/neighbour.h:493 [inline]
neigh_output include/net/neighbour.h:507 [inline]
ip6_finish_output2+0x1051/0x1510 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+0xc2a/0x1500 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2d1/0x630 net/ipv6/addrconf.c:3956
call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x53e/0x800 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x339/0x830 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
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:copy_verifier_state+0x11f/0xc90 kernel/bpf/verifier.c:959
Code: f7 48 8b 74 24 18 4c 89 ea e8 6d e0 32 00 4d 85 f6 41 bd 10 00 00 00 4d 0f 45 ee 41 80 3c 2f 00 74 08 4c 89 e7 e8 81 de 32 00 <4d> 89 2c 24 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 49 89 ee 0f 85
RSP: 0018:ffffc900030cf1a8 EFLAGS: 00000246
RAX: ffff888082a2f900 RBX: ffff888074c6b170 RCX: 0000000000000000
RDX: 0000000000000068 RSI: ffff888082a2f268 RDI: ffff888082a2f968
RBP: dffffc0000000000 R08: ffff888082a2f967 R09: 1ffff11010545f2c
R10: dffffc0000000000 R11: ffffed1010545f2d R12: ffff88805e101768
R13: ffff888082a2f900 R14: ffff888082a2f900 R15: 1ffff1100bc202ed
push_stack+0x1a5/0x510 kernel/bpf/verifier.c:1057
check_cond_jmp_op kernel/bpf/verifier.c:9363 [inline]
do_check+0xc424/0xeb00 kernel/bpf/verifier.c:11499
do_check_common+0xe82/0x16e0 kernel/bpf/verifier.c:13512
do_check_main kernel/bpf/verifier.c:13575 [inline]
bpf_check+0x9c84/0xf270 kernel/bpf/verifier.c:14146
bpf_prog_load+0xfec/0x1510 kernel/bpf/syscall.c:2354
__sys_bpf+0x532/0x6f0 kernel/bpf/syscall.c:4657
__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: 0033:0x7fbbfe443dd9
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:00007fbbfc69d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fbbfe6bcfa0 RCX: 00007fbbfe443dd9
RDX: 0000000000000094 RSI: 0000200000000180 RDI: 0000000000000005
RBP: 00007fbbfe4d9d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbbfe6bd038 R14: 00007fbbfe6bcfa0 R15: 00007fffc6d73d38
----------------
Code disassembly (best guess):
0: f7 48 8b 74 24 18 4c testl $0x4c182474,-0x75(%rax)
7: 89 ea mov %ebp,%edx
9: e8 6d e0 32 00 call 0x32e07b
e: 4d 85 f6 test %r14,%r14
11: 41 bd 10 00 00 00 mov $0x10,%r13d
17: 4d 0f 45 ee cmovne %r14,%r13
1b: 41 80 3c 2f 00 cmpb $0x0,(%r15,%rbp,1)
20: 74 08 je 0x2a
22: 4c 89 e7 mov %r12,%rdi
25: e8 81 de 32 00 call 0x32deab
* 2a: 4d 89 2c 24 mov %r13,(%r12) <-- trapping instruction
2e: 48 89 d8 mov %rbx,%rax
31: 48 c1 e8 03 shr $0x3,%rax
35: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax
39: 84 c0 test %al,%al
3b: 49 89 ee mov %rbp,%r14
3e: 0f .byte 0xf
3f: 85 .byte 0x85