------------[ cut here ]------------ WARNING: CPU: 1 PID: 20 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0 Modules linked in: CPU: 1 PID: 20 Comm: ksoftirqd/1 Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226 Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 c6 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff RSP: 0018:ffffc90000da6f68 EFLAGS: 00010246 RAX: ffffffff81aaacec RBX: 0000000000000000 RCX: ffff888017e68000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff81aaabfd R09: fffffbfff20ec821 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000008 R14: 0000000000000000 R15: ffffc90000da6fc8 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd51eaf84b8 CR3: 0000000060900000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 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_be51ca87f02ff73c+0x3a/0x220 bpf_dispatcher_nop_func include/linux/bpf.h:790 [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_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917 trace_fib6_table_lookup+0x16e/0x1d0 include/trace/events/fib6.h:13 fib6_table_lookup+0xb54/0xbb0 net/ipv6/route.c:2196 ip6_pol_route+0x1e7/0x15a0 net/ipv6/route.c:2219 pol_lookup_func include/net/ip6_fib.h:582 [inline] fib6_rule_lookup+0x265/0x620 net/ipv6/fib6_rules.c:115 ip6_route_input_lookup net/ipv6/route.c:2289 [inline] ip6_route_input+0x830/0xd90 net/ipv6/route.c:2585 ip6_rcv_finish+0x136/0x250 net/ipv6/ip6_input.c:77 NF_HOOK+0x364/0x410 include/linux/netfilter.h:302 __netif_receive_skb_one_core net/core/dev.c:5493 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5607 process_backlog+0x363/0x7f0 net/core/dev.c:6484 __napi_poll+0xc7/0x440 net/core/dev.c:7043 napi_poll net/core/dev.c:7110 [inline] net_rx_action+0x617/0xda0 net/core/dev.c:7200 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 run_ksoftirqd+0xc6/0x120 kernel/softirq.c:925 smpboot_thread_fn+0x51b/0x9d0 kernel/smpboot.c:164 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287