------------[ cut here ]------------
WARNING: CPU: 0 PID: 14 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 7a 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 77 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:ffffc90000d36248 EFLAGS: 00010246
RAX: ffffffff81a0b690 RBX: 0000000000000000 RCX: ffff88813fea9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8ff3c008 R09: ffffffff8ff3c018
R10: ffffffff8ff3c010 R11: ffffffff8ff3c003 R12: ffff88813feab568
R13: ffffc9000126e000 R14: ffffc90000d362a8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff35bad1c40 CR3: 000000007d15f000 CR4: 00000000003506f0
DR0: 0000000000000004 DR1: 0000200000000680 DR2: 0000200000000680
DR3: 0000200000000680 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 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+0x32/0x9a0
 bpf_dispatcher_nop_func include/linux/bpf.h:890 [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_flow_dissect+0x351/0x400 net/core/flow_dissector.c:896
 __skb_flow_dissect+0x7dc/0x61d0 net/core/flow_dissector.c:1032
 __skb_get_hash_net+0xda/0x4d0 net/core/flow_dissector.c:1713
 skb_get_hash include/linux/skbuff.h:1440 [inline]
 skb_tx_hash net/core/dev.c:3256 [inline]
 netdev_pick_tx+0x337/0xad0 net/core/dev.c:4154
 netdev_core_pick_tx+0x141/0x300 net/core/dev.c:4187
 __dev_queue_xmit+0x797/0x2e50 net/core/dev.c:4262
 br_dev_queue_push_xmit+0x696/0x850 net/bridge/br_forward.c:53
 NF_HOOK+0x2f9/0x380 include/linux/netfilter.h:302
 br_forward_finish+0x74/0x80 net/bridge/br_forward.c:66
 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:-1 [inline]
 br_nf_forward_finish+0x981/0xd00 net/bridge/br_netfilter_hooks.c:662
 NF_HOOK+0x5c7/0x640 include/linux/netfilter.h:302
 br_nf_forward_arp+0x5db/0xb30 net/bridge/br_netfilter_hooks.c:772
 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
 nf_hook_slow+0xb9/0x200 net/netfilter/core.c:584
 nf_hook include/linux/netfilter.h:257 [inline]
 NF_HOOK+0x1f3/0x380 include/linux/netfilter.h:300
 __br_forward+0x433/0x610 net/bridge/br_forward.c:115
 deliver_clone net/bridge/br_forward.c:131 [inline]
 maybe_deliver+0xb5/0x150 net/bridge/br_forward.c:190
 br_flood+0x2f9/0x450 net/bridge/br_forward.c:232
 br_handle_frame_finish+0x102b/0x1310 net/bridge/br_input.c:180
 nf_hook_bridge_pre net/bridge/br_input.c:264 [inline]
 br_handle_frame+0x874/0x12e0 net/bridge/br_input.c:393
 __netif_receive_skb_core+0xfd5/0x3670 net/core/dev.c:5446
 __netif_receive_skb_one_core net/core/dev.c:5550 [inline]
 __netif_receive_skb+0x74/0x290 net/core/dev.c:5666
 process_backlog+0x366/0x770 net/core/dev.c:6543
 __napi_poll+0xbb/0x430 net/core/dev.c:7102
 napi_poll net/core/dev.c:7169 [inline]
 net_rx_action+0x522/0xa80 net/core/dev.c:7259
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:943
 smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>