------------[ cut here ]------------
WARNING: CPU: 1 PID: 4004 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4004 Comm: syz.0.119 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:ffffc90000dcf8c0 EFLAGS: 00010246
RAX: ffffffff81aa939c RBX: 0000000000000000 RCX: ffff8880263e5940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa92ad R09: fffffbfff1bd2c16
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000008 R14: 0000000000000000 R15: ffffc90000dcf928
FS: 00007fbaad40e6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2567f8 CR3: 0000000061f26000 CR4: 00000000003506e0
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_02073d59a3c0f06f+0x3d/0x8f4
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:621 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run2+0x29e/0x340 kernel/trace/bpf_trace.c:1917
__bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:118
trace_kfree include/trace/events/kmem.h:118 [inline]
kfree+0x22f/0x270 mm/slub.c:4549
skb_free_head net/core/skbuff.c:655 [inline]
skb_release_data+0x73a/0x8a0 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:3368 [inline]
tcp_ack+0x2326/0x6ab0 net/ipv4/tcp_input.c:3925
tcp_rcv_established+0x1305/0x1e20 net/ipv4/tcp_input.c:5982
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:__sanitizer_cov_trace_pc+0x41/0x60 kernel/kcov.c:211
Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 34 16 00 00 00 74 2c 8b 91 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 14 16 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89
RSP: 0018:ffffc900031775d8 EFLAGS: 00000246
RAX: ffffffff81b82616 RBX: 0000000000000028 RCX: ffff8880263e5940
RDX: ffffc900035fb000 RSI: 000000000000a8ae RDI: 0000000000000020
RBP: ffffc90003177950 R08: ffffffff81b82569 R09: ffffed10040cd49d
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801fc0e528
R13: 800000007095b007 R14: 1ffff1100baed311 R15: ffff88801fc0e578
page_needs_cow_for_dma include/linux/mm.h:1345 [inline]
copy_present_page mm/memory.c:903 [inline]
copy_present_pte mm/memory.c:949 [inline]
copy_pte_range mm/memory.c:1070 [inline]
copy_pmd_range mm/memory.c:1156 [inline]
copy_pud_range mm/memory.c:1193 [inline]
copy_p4d_range mm/memory.c:1217 [inline]
copy_page_range+0x13b6/0x43b0 mm/memory.c:1290
dup_mmap kernel/fork.c:614 [inline]
dup_mm kernel/fork.c:1465 [inline]
copy_mm+0xc64/0x1370 kernel/fork.c:1517
copy_process+0x1816/0x3ef0 kernel/fork.c:2206
kernel_clone+0x210/0x960 kernel/fork.c:2604
__do_sys_clone kernel/fork.c:2721 [inline]
__se_sys_clone kernel/fork.c:2705 [inline]
__x64_sys_clone+0x23f/0x290 kernel/fork.c:2705
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fbaaef95ff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbaad40dfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fbaaf14df80 RCX: 00007fbaaef95ff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040004000
RBP: 00007fbaaf008296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbaaf14df80 R15: 00007ffcf0010028
----------------
Code disassembly (best guess):
0: ff 00 incl (%rax)
2: 74 11 je 0x15
4: 81 fa 00 01 00 00 cmp $0x100,%edx
a: 75 35 jne 0x41
c: 83 b9 34 16 00 00 00 cmpl $0x0,0x1634(%rcx)
13: 74 2c je 0x41
15: 8b 91 10 16 00 00 mov 0x1610(%rcx),%edx
1b: 83 fa 02 cmp $0x2,%edx
1e: 75 21 jne 0x41
20: 48 8b 91 18 16 00 00 mov 0x1618(%rcx),%rdx
27: 48 8b 32 mov (%rdx),%rsi
* 2a: 48 8d 7e 01 lea 0x1(%rsi),%rdi <-- trapping instruction
2e: 8b 89 14 16 00 00 mov 0x1614(%rcx),%ecx
34: 48 39 cf cmp %rcx,%rdi
37: 73 08 jae 0x41
39: 48 89 44 f2 08 mov %rax,0x8(%rdx,%rsi,8)
3e: 48 rex.W
3f: 89 .byte 0x89