------------[ cut here ]------------
WARNING: CPU: 0 PID: 5249 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 0 PID: 5249 Comm: syz.5.178 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
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 cb c6 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 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:ffffc900000079f0 EFLAGS: 00010246
RAX: ffffffff81aaacec RBX: 0000000000000000 RCX: ffff88802c929dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aaabfd R09: ffffed10059253b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000008 R14: 0000000000000000 R15: ffffc90000007a68
FS: 00007f07ed2ef6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000253cb000 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_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_a9d1eab64edc2dc9+0x56/0x6b8
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_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1916
__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
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0xa15/0x1650 kernel/rcu/tree.c:2763
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
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:native_irq_enable arch/x86/include/asm/irqflags.h:45 [inline]
RIP: 0010:arch_local_irq_enable arch/x86/include/asm/irqflags.h:80 [inline]
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:140 [inline]
RIP: 0010:___slab_alloc+0xa36/0xe10 mm/slub.c:2996
Code: 00 00 44 8b 6c 24 10 0f 84 53 f6 ff ff fb e9 4d f6 ff ff e8 bc e0 6a 08 41 f7 c5 00 02 00 00 0f 84 37 fe ff ff fb 8b 6c 24 10 84 f6 ff ff 0f 0b e9 69 f8 ff ff e8 99 e0 6a 08 e9 66 f7 ff ff
RSP: 0018:ffffc900033579a8 EFLAGS: 00000206
RAX: fc74889306730900 RBX: ffff8880b903df70 RCX: ffffffff9686af03
RDX: dffffc0000000000 RSI: ffffffff8a8b2a80 RDI: ffffffff8ad90540
RBP: 00000000ffffffff R08: ffffffff8186f220 R09: fffffbfff1bd2d3e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0000713800
R13: 0000000000000286 R14: ffffffff7fff0000 R15: ffff888017042000
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
__kmalloc_node_track_caller+0x1f6/0x390 mm/slub.c:4958
kmalloc_reserve net/core/skbuff.c:356 [inline]
__alloc_skb+0x12c/0x590 net/core/skbuff.c:427
alloc_skb include/linux/skbuff.h:1162 [inline]
nlmsg_new include/net/netlink.h:953 [inline]
audit_buffer_alloc kernel/audit.c:1799 [inline]
audit_log_start+0x170/0xa00 kernel/audit.c:1917
audit_seccomp+0x5e/0x1f0 kernel/auditsc.c:2726
seccomp_log kernel/seccomp.c:988 [inline]
__seccomp_filter+0xb05/0x1d40 kernel/seccomp.c:1254
syscall_trace_enter kernel/entry/common.c:68 [inline]
__syscall_enter_from_user_work kernel/entry/common.c:96 [inline]
syscall_enter_from_user_mode+0xf0/0x240 kernel/entry/common.c:114
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f07ef477819
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:00007f07ed2ef038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ba
RAX: ffffffffffffffda RBX: 00007f07ef62efa0 RCX: 00007f07ef477819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f07ef62efa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f07ef62efa0 R15: 00007ffc75eadb88
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 44 8b 6c 24 10 mov 0x10(%rsp),%r13d
7: 0f 84 53 f6 ff ff je 0xfffff660
d: fb sti
e: e9 4d f6 ff ff jmp 0xfffff660
13: e8 bc e0 6a 08 call 0x86ae0d4
18: 41 f7 c5 00 02 00 00 test $0x200,%r13d
1f: 0f 84 37 fe ff ff je 0xfffffe5c
25: fb sti
26: 8b 6c 24 10 mov 0x10(%rsp),%ebp
* 2a: e9 84 f6 ff ff jmp 0xfffff6b3 <-- trapping instruction
2f: 0f 0b ud2
31: e9 69 f8 ff ff jmp 0xfffff89f
36: e8 99 e0 6a 08 call 0x86ae0d4
3b: e9 66 f7 ff ff jmp 0xfffff7a6