------------[ cut here ]------------
WARNING: CPU: 1 PID: 4212 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4212 Comm: syz-executor172 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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 ab ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 94 ba 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:ffffc90000dd0668 EFLAGS: 00010246
RAX: ffffffff81aacafc RBX: 0000000000000000 RCX: ffff88802b7b9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaca0d R09: fffffbfff2131821
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000020ffe900
R13: 0000000000000008 R14: 0000000020ffe900 R15: ffffc90000dd06c8
FS: 000055555b535380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020ffe900 CR3: 000000007aec8000 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_0ad38924bdbd0512+0x38/0xad8
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
__bpf_trace_mm_page_alloc+0xba/0xe0 include/trace/events/kmem.h:201
__traceiter_mm_page_alloc+0x35/0x50 include/trace/events/kmem.h:201
trace_mm_page_alloc include/trace/events/kmem.h:201 [inline]
__alloc_pages+0x6e0/0x700 mm/page_alloc.c:5487
skb_page_frag_refill+0x220/0x4b0 net/core/sock.c:2664
add_recvbuf_mergeable drivers/net/virtio_net.c:1329 [inline]
try_fill_recv+0x49d/0x17d0 drivers/net/virtio_net.c:1370
virtnet_receive drivers/net/virtio_net.c:1484 [inline]
virtnet_poll+0x83a/0x1260 drivers/net/virtio_net.c:1585
__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
__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+0xb3/0xd0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:preempt_latency_start kernel/sched/core.c:5470 [inline]
RIP: 0010:preempt_count_add+0xac/0x180 kernel/sched/core.c:5493
Code: 4c 8b 74 24 18 4c 89 f7 e8 41 8e 0c 00 85 c0 74 0a 45 31 f6 31 ff e8 33 8e 0c 00 65 48 8b 1d eb e3 aa 7e 48 81 c3 e8 14 00 00 <48> 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 7e e2 72 00
RSP: 0018:ffffc9000115eec8 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffff88802b7bb2a8 RCX: ffffffff8a48fa00
RDX: dffffc0000000000 RSI: ffffffff8190c396 RDI: ffffffff8138a9ab
RBP: ffffc9000115efd8 R08: 0000000000000006 R09: ffffc9000115f090
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc9000115f500
R13: ffffffff816e19f0 R14: ffffffff8138a9ab R15: dffffc0000000000
unwind_next_frame+0xbb/0x1fa0 arch/x86/kernel/unwind_orc.c:433
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0xf1/0x270 mm/slub.c:4559
do_check_common+0x877/0x1070 kernel/bpf/verifier.c:13491
do_check_main kernel/bpf/verifier.c:13548 [inline]
bpf_check+0xcb96/0x12d40 kernel/bpf/verifier.c:14119
bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2353
__sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4656
__do_sys_bpf kernel/bpf/syscall.c:4760 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4758 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4758
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: 0033:0x7f149d856c29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd63c2658 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f149d856c29
RDX: 0000000000000090 RSI: 00004000000000c0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 4c 8b 74 24 18 mov 0x18(%rsp),%r14
5: 4c 89 f7 mov %r14,%rdi
8: e8 41 8e 0c 00 call 0xc8e4e
d: 85 c0 test %eax,%eax
f: 74 0a je 0x1b
11: 45 31 f6 xor %r14d,%r14d
14: 31 ff xor %edi,%edi
16: e8 33 8e 0c 00 call 0xc8e4e
1b: 65 48 8b 1d eb e3 aa mov %gs:0x7eaae3eb(%rip),%rbx # 0x7eaae40e
22: 7e
23: 48 81 c3 e8 14 00 00 add $0x14e8,%rbx
* 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction
2d: 48 c1 e8 03 shr $0x3,%rax
31: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
36: 74 08 je 0x40
38: 48 89 df mov %rbx,%rdi
3b: e8 7e e2 72 00 call 0x72e2be