------------[ cut here ]------------
WARNING: CPU: 1 PID: 4234 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:-1
Modules linked in:
CPU: 1 PID: 4234 Comm: syz-executor224 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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 3b b1 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 24 b1 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:ffffc90000dd0210 EFLAGS: 00010246
RAX: ffffffff81aa911c RBX: 0000000000000000 RCX: ffff88802bbc5940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa902d R09: ffffed1005778b29
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0288
FS: 0000555582060380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000000c0 CR3: 000000007cc13000 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_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_3d2613b5dfc7747f+0x32/0xb50
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:5488
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xbb/0x4b0 mm/slub.c:1975
___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
kmem_cache_alloc_bulk+0x13d/0x3c0 mm/slub.c:3690
napi_skb_cache_get+0x115/0x1e0 net/core/skbuff.c:178
__alloc_skb+0xee/0x590 net/core/skbuff.c:413
__napi_alloc_skb+0x15c/0x2d0 net/core/skbuff.c:568
napi_alloc_skb include/linux/skbuff.h:3058 [inline]
page_to_skb+0x294/0xd20 drivers/net/virtio_net.c:454
receive_mergeable drivers/net/virtio_net.c:1070 [inline]
receive_buf+0x1218/0x6600 drivers/net/virtio_net.c:1180
virtnet_receive drivers/net/virtio_net.c:1472 [inline]
virtnet_poll+0x616/0x1260 drivers/net/virtio_net.c:1585
__napi_poll+0xc7/0x440 net/core/dev.c:7074
napi_poll net/core/dev.c:7141 [inline]
net_rx_action+0x617/0xda0 net/core/dev.c:7231
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:242
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:get_reg arch/x86/kernel/unwind_orc.c:406 [inline]
RIP: 0010:unwind_next_frame+0x1191/0x1fa0 arch/x86/kernel/unwind_orc.c:587
Code: 00 0f b7 75 00 c1 ee 04 83 e6 0f 83 fe 04 0f 84 cb 00 00 00 83 fe 01 0f 84 29 01 00 00 85 f6 0f 85 c6 02 00 00 48 8b 44 24 30 <80> 3c 10 00 74 12 48 89 df e8 41 98 91 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90002e9ea08 EFLAGS: 00000246
RAX: 1ffff920005d3d62 RBX: ffffc90002e9eb10 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90002e9eb20
RBP: ffffffff8e8827e4 R08: ffffc90002e9ff30 R09: ffffc90002e9eb10
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d104fc
R13: 1ffffffff1d104fc R14: ffffffff8e8827e0 R15: ffffc90002e9eac0
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]
kmem_cache_free+0x91/0x1f0 mm/slub.c:3515
adjust_va_to_fit_type mm/vmalloc.c:1336 [inline]
__alloc_vmap_area mm/vmalloc.c:1452 [inline]
alloc_vmap_area+0x16ae/0x19a0 mm/vmalloc.c:1543
__get_vm_area_node+0x16e/0x2f0 mm/vmalloc.c:2423
__vmalloc_node_range+0xe3/0x8c0 mm/vmalloc.c:3020
__vmalloc_node mm/vmalloc.c:3080 [inline]
vmalloc+0x75/0x80 mm/vmalloc.c:3113
bpf_prog_calc_tag+0xd7/0x8f0 kernel/bpf/core.c:281
resolve_pseudo_ldimm64+0xe0/0x1240 kernel/bpf/verifier.c:11814
bpf_check+0x433a/0x12d40 kernel/bpf/verifier.c:14104
bpf_prog_load+0x12b3/0x1b60 kernel/bpf/syscall.c:2345
__sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4648
__do_sys_bpf kernel/bpf/syscall.c:4752 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4750 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4750
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2aac9a5c29
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:00007ffc2e0def78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2aac9a5c29
RDX: 0000000000000090 RSI: 00002000000000c0 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: 00 0f add %cl,(%rdi)
2: b7 75 mov $0x75,%bh
4: 00 c1 add %al,%cl
6: ee out %al,(%dx)
7: 04 83 add $0x83,%al
9: e6 0f out %al,$0xf
b: 83 fe 04 cmp $0x4,%esi
e: 0f 84 cb 00 00 00 je 0xdf
14: 83 fe 01 cmp $0x1,%esi
17: 0f 84 29 01 00 00 je 0x146
1d: 85 f6 test %esi,%esi
1f: 0f 85 c6 02 00 00 jne 0x2eb
25: 48 8b 44 24 30 mov 0x30(%rsp),%rax
* 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction
2e: 74 12 je 0x42
30: 48 89 df mov %rbx,%rdi
33: e8 41 98 91 00 call 0x919879
38: 48 rex.W
39: ba 00 00 00 00 mov $0x0,%edx
3e: 00 fc add %bh,%ah