------------[ cut here ]------------
WARNING: CPU: 0 PID: 4227 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 4227 Comm: kworker/u4:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: phy6 ieee80211_iface_work
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 6d f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f0 f3 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000007988 EFLAGS: 00010246
RAX: ffffffff819ed660 RBX: 0000000000000000 RCX: ffff888025e1bb80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ff7a19
R10: fffffbfff1ff7a19 R11: 1ffffffff1ff7a18 R12: ffff888025e1d308
R13: dffffc0000000000 R14: ffffc900000079e8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5443961f98 CR3: 0000000063b0d000 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_690f12e098ef46de+0x32/0xd38
bpf_dispatcher_nop_func include/linux/bpf.h:888 [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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
__bpf_trace_kfree+0x6e/0x90 include/trace/events/kmem.h:118
trace_kfree include/trace/events/kmem.h:118 [inline]
kfree+0x25f/0x2a0 mm/slub.c:4554
ip_dst_metrics_put include/net/ip.h:516 [inline]
ip6_dst_destroy+0x96/0x240 net/ipv6/route.c:360
dst_destroy+0xc0/0x2e0 net/core/dst.c:112
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
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:lock_acquire+0x1f2/0x3f0 kernel/locking/lockdep.c:5627
Code: 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 0f 85 f6 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 66 43 c7 44 3d 09 00 00 43 c6 44 3d 0b
RSP: 0018:ffffc9000302f440 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 140b3fdf31c76900
RDX: dffffc0000000000 RSI: ffffffff8a0b2ac0 RDI: ffffffff8a59a4c0
RBP: ffffc9000302f560 R08: dffffc0000000000 R09: fffffbfff1ff7a1b
R10: fffffbfff1ff7a1b R11: 1ffffffff1ff7a1a R12: ffffffff8c1ecd60
R13: 1ffff92000605e94 R14: 0000000000000246 R15: dffffc0000000000
fs_reclaim_acquire+0x91/0x100 mm/page_alloc.c:4597
might_alloc include/linux/sched/mm.h:206 [inline]
slab_pre_alloc_hook+0x20/0xc0 mm/slab.h:492
slab_alloc_node mm/slub.c:3139 [inline]
slab_alloc mm/slub.c:3233 [inline]
__kmalloc+0x6b/0x330 mm/slub.c:4408
kmalloc include/linux/slab.h:609 [inline]
kzalloc include/linux/slab.h:735 [inline]
ieee80211_ibss_build_presp+0x113/0x18a0 net/mac80211/ibss.c:70
__ieee80211_sta_join_ibss+0x68a/0x13e0 net/mac80211/ibss.c:317
ieee80211_sta_create_ibss+0x2c3/0x440 net/mac80211/ibss.c:1351
ieee80211_sta_find_ibss net/mac80211/ibss.c:1481 [inline]
ieee80211_ibss_work+0xdb2/0x10b0 net/mac80211/ibss.c:1710
process_one_work+0x863/0x1000 kernel/workqueue.c:2310
worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
----------------
Code disassembly (best guess):
0: 00 9c 8f 84 24 80 00 add %bl,0x802484(%rdi,%rcx,4)
7: 00 00 add %al,(%rax)
9: f6 84 24 81 00 00 00 testb $0x2,0x81(%rsp)
10: 02
11: 0f 85 f6 00 00 00 jne 0x10d
17: 41 f7 c6 00 02 00 00 test $0x200,%r14d
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 60 0e 36 movq $0x45e0360e,0x60(%rsp)
28: e0 45
* 2a: 4b c7 44 3d 00 00 00 movq $0x0,0x0(%r13,%r15,1) <-- trapping instruction
31: 00 00
33: 66 43 c7 44 3d 09 00 movw $0x0,0x9(%r13,%r15,1)
3a: 00
3b: 43 rex.XB
3c: c6 .byte 0xc6
3d: 44 rex.R
3e: 3d .byte 0x3d
3f: 0b .byte 0xb