------------[ cut here ]------------
WARNING: CPU: 1 PID: 5104 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 1 PID: 5104 Comm: syz.0.276 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 3d f7 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 c0 f3 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: 0000:ffffc9000343e8f8 EFLAGS: 00010246
RAX: ffffffff819ed760 RBX: 0000000000000000 RCX: ffff88802b541dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10056a83b9
R10: ffffed10056a83b9 R11: 1ffff110056a83b8 R12: ffff88802b543548
R13: 00007ffffffff000 R14: ffffc9000343e968 R15: 0000000020000000
FS:  000055558f97b500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32321ff8 CR3: 000000007c298000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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_24fd3d61f59b453e+0x3a/0xc88
 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_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
 __bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x25f/0x2a0 mm/slub.c:4554
 skb_free_head net/core/skbuff.c:655 [inline]
 skb_release_data+0x6fe/0x850 net/core/skbuff.c:677
 skb_release_all net/core/skbuff.c:742 [inline]
 __kfree_skb+0x4c/0x60 net/core/skbuff.c:756
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3407 [inline]
 tcp_ack+0x2086/0x6260 net/ipv4/tcp_input.c:3964
 tcp_rcv_established+0xea6/0x1cb0 net/ipv4/tcp_input.c:5981
 tcp_v4_do_rcv+0x44b/0x9b0 net/ipv4/tcp_ipv4.c:1731
 tcp_v4_rcv+0x268f/0x2cb0 net/ipv4/tcp_ipv4.c:2143
 ip_protocol_deliver_rcu+0x3ad/0x770 net/ipv4/ip_input.c:204
 ip_local_deliver_finish+0x1d5/0x320 net/ipv4/ip_input.c:231
 NF_HOOK+0x2d6/0x360 include/linux/netfilter.h:302
 dst_input include/net/dst.h:462 [inline]
 ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline]
 ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline]
 ip_sublist_rcv+0xa1f/0xce0 net/ipv4/ip_input.c:636
 ip_list_rcv+0x3df/0x430 net/ipv4/ip_input.c:671
 __netif_receive_skb_list_ptype net/core/dev.c:5568 [inline]
 __netif_receive_skb_list_core+0x574/0x740 net/core/dev.c:5616
 __netif_receive_skb_list net/core/dev.c:5668 [inline]
 netif_receive_skb_list_internal+0x871/0xb90 net/core/dev.c:5759
 gro_normal_list net/core/dev.c:5913 [inline]
 napi_complete_done+0x37d/0x830 net/core/dev.c:6651
 virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
 virtnet_poll+0x912/0xef0 drivers/net/virtio_net.c:1624
 __napi_poll+0xc0/0x430 net/core/dev.c:7075
 napi_poll net/core/dev.c:7142 [inline]
 net_rx_action+0x4a8/0x9c0 net/core/dev.c:7232
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 common_interrupt+0x5e/0xd0 arch/x86/kernel/irq.c:242
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0033:0x7f701cc24036
Code: 77 f8 48 89 f8 48 89 eb eb 12 66 2e 0f 1f 84 00 00 00 00 00 48 8b 4b 08 48 83 c3 08 48 39 d1 72 f3 48 83 e8 08 48 39 f2 73 17 <66> 2e 0f 1f 84 00 00 00 00 00 48 8b 70 f8 48 83 e8 08 48 39 f2 72
RSP: 002b:00007ffdf8b2f1e0 EFLAGS: 00000297
RAX: 00007f701cb7f8b0 RBX: 00007f701cb7dda8 RCX: ffffffff81c3dd08
RDX: ffffffff81c3dd08 RSI: ffffffff81c3dd4b RDI: 00007f701cb7f908
RBP: 00007f701cb7dd68 R08: 00007f701cb7eb30 R09: 00007f701cf7e000
R10: 00007f701c7bb008 R11: 0000000000000000 R12: 00007f701cb7dd60
R13: 0000000000000019 R14: 000000000001dfdd R15: 00007f701c7bb008
 </TASK>