------------[ cut here ]------------
WARNING: CPU: 0 PID: 3561 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 0 PID: 3561 Comm: udevd Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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 eb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 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:ffffc90000006948 EFLAGS: 00010246
RAX: ffffffff81aa939c RBX: 0000000000000000 RCX: ffff888019dbd940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa92ad R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020000000
R13: 0000000000000008 R14: 0000000020000000 R15: ffffc900000069a8
FS: 00007f6bd1a49c80(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000023ac3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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_078a3568a35342ea+0x38/0x68c
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:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
__bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138
trace_kmem_cache_free include/trace/events/kmem.h:138 [inline]
kmem_cache_free+0x1ce/0x1f0 mm/slub.c:3516
tcp_clean_rtx_queue net/ipv4/tcp_input.c:3368 [inline]
tcp_ack+0x2326/0x6ab0 net/ipv4/tcp_input.c:3925
tcp_rcv_established+0xf2d/0x1e20 net/ipv4/tcp_input.c:5938
tcp_v4_do_rcv+0x423/0x960 net/ipv4/tcp_ipv4.c:1728
tcp_v4_rcv+0x2740/0x2d80 net/ipv4/tcp_ipv4.c:2140
ip_protocol_deliver_rcu+0x381/0x730 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x1db/0x320 net/ipv4/ip_input.c:231
NF_HOOK+0x364/0x410 include/linux/netfilter.h:302
dst_input include/net/dst.h:453 [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+0xb0f/0xe50 net/ipv4/ip_input.c:636
ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671
__netif_receive_skb_list_ptype net/core/dev.c:5528 [inline]
__netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5576
__netif_receive_skb_list net/core/dev.c:5628 [inline]
netif_receive_skb_list_internal+0x9ed/0xdf0 net/core/dev.c:5719
gro_normal_list net/core/dev.c:5873 [inline]
napi_complete_done+0x352/0x820 net/core/dev.c:6611
virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline]
virtnet_poll+0xbd1/0x1260 drivers/net/virtio_net.c:1592
__napi_poll+0xc7/0x440 net/core/dev.c:7035
napi_poll net/core/dev.c:7102 [inline]
net_rx_action+0x617/0xda0 net/core/dev.c:7192
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:93 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x37/0x240 kernel/entry/common.c:114
Code: 49 89 fe 48 8b 7c 24 30 e8 46 f6 ff ff e9 8d 01 00 00 e9 91 01 00 00 e8 a7 84 52 f7 e8 92 82 52 f7 fb 65 4c 8b 3d 29 17 ce 75 <49> 8b 5f 08 f6 c3 3f 0f 84 ce 00 00 00 f6 c3 20 74 17 4c 89 f7 e8
RSP: 0018:ffffc90002d17ef8 EFLAGS: 00000282
RAX: 1e5066777318fa00 RBX: ffffc90002d17f30 RCX: ffffffff96868f03
RDX: dffffc0000000000 RSI: ffffffff8a8b2b00 RDI: ffffffff8ad904c0
RBP: ffffc90002d17f48 R08: ffffffff8186db50 R09: fffffbfff1bd2c16
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 00000000000000e8 R14: ffffc90002d17f58 R15: ffff888019dbd940
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6bd1b81457
Code: 73 01 c3 48 8b 0d d1 d9 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 e8 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 76 48 8b 15 a2 d9 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff9ead8c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bd1b81457
RDX: 0000000000000004 RSI: 00007fff9ead8c58 RDI: 0000000000000004
RBP: 00005569fb16db80 R08: 0000000000000007 R09: 17407e9d82cd5d26
R10: 00000000ffffffff R11: 0000000000000246 R12: 00005569fb183ea0
R13: 00007fff9ead8c58 R14: 0000000000000008 R15: 00005569fb163910
----------------
Code disassembly (best guess):
0: 49 89 fe mov %rdi,%r14
3: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi
8: e8 46 f6 ff ff call 0xfffff653
d: e9 8d 01 00 00 jmp 0x19f
12: e9 91 01 00 00 jmp 0x1a8
17: e8 a7 84 52 f7 call 0xf75284c3
1c: e8 92 82 52 f7 call 0xf75282b3
21: fb sti
22: 65 4c 8b 3d 29 17 ce mov %gs:0x75ce1729(%rip),%r15 # 0x75ce1753
29: 75
* 2a: 49 8b 5f 08 mov 0x8(%r15),%rbx <-- trapping instruction
2e: f6 c3 3f test $0x3f,%bl
31: 0f 84 ce 00 00 00 je 0x105
37: f6 c3 20 test $0x20,%bl
3a: 74 17 je 0x53
3c: 4c 89 f7 mov %r14,%rdi
3f: e8 .byte 0xe8