------------[ cut here ]------------
WARNING: CPU: 0 PID: 8243 at net/mac80211/tx.c:4851 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
WARNING: CPU: 0 PID: 8243 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Modules linked in:
CPU: 0 PID: 8243 Comm: syz.7.835 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Code: f8 0f 0b e9 f1 fa ff ff e8 91 14 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 80 14 3a f8 0f 0b e9 3c ef ff ff e8 74 14 3a f8 <0f> 0b e9 b8 f2 ff ff e8 a8 ce 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893dae9c RBX: ffff88805f8d0c80 RCX: ffff888077508000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff888077508000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807811d600
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS:  00007f2d8b3bd6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33217ff8 CR3: 000000007b325000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5194
 ieee80211_beacon_get include/net/mac80211.h:4981 [inline]
 mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1409 [inline]
RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1483 [inline]
RIP: 0010:bpf_get_stack_raw_tp+0x73/0x1c0 kernel/trace/bpf_trace.c:1480
Code: 00 00 00 00 00 fc ff df 4e 8d 24 e5 10 18 bc 8b 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 21 f1 3b 00 49 8b 1c 24 <41> be 01 00 00 00 65 44 0f c1 35 26 f2 81 7e 45 8d 66 fd bf fc ff
RSP: 0018:ffffc9000335f8d8 EFLAGS: 00000246
RAX: 1ffffffff1778302 RBX: ffff8880b9000000 RCX: 0000000000080000
RDX: ffffc900136ea000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000335f910 R08: dffffc0000000000 R09: fffffbfff1ff7419
R10: fffffbfff1ff7419 R11: 1ffffffff1ff7418 R12: ffffffff8bbc1810
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000008
 bpf_prog_b8a90dd1efcc4ad9+0x3d/0xc9c
 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_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:4549
 ___sys_recvmsg+0x1be/0x4f0 net/socket.c:2698
 do_recvmmsg+0x344/0x7a0 net/socket.c:2791
 __sys_recvmmsg net/socket.c:2870 [inline]
 __do_sys_recvmmsg net/socket.c:2893 [inline]
 __se_sys_recvmmsg net/socket.c:2886 [inline]
 __x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2886
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2d8d576929
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:00007f2d8b3bd038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f2d8d79e080 RCX: 00007f2d8d576929
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f2d8d5f8b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2d8d79e080 R15: 00007fff9e344bf8
 </TASK>
----------------
Code disassembly (best guess), 7 bytes skipped:
   0:	df 4e 8d             	fisttps -0x73(%rsi)
   3:	24 e5                	and    $0xe5,%al
   5:	10 18                	adc    %bl,(%rax)
   7:	bc 8b 4c 89 e0       	mov    $0xe0894c8b,%esp
   c:	48 c1 e8 03          	shr    $0x3,%rax
  10:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  15:	74 08                	je     0x1f
  17:	4c 89 e7             	mov    %r12,%rdi
  1a:	e8 21 f1 3b 00       	call   0x3bf140
  1f:	49 8b 1c 24          	mov    (%r12),%rbx
* 23:	41 be 01 00 00 00    	mov    $0x1,%r14d <-- trapping instruction
  29:	65 44 0f c1 35 26 f2 	xadd   %r14d,%gs:0x7e81f226(%rip)        # 0x7e81f258
  30:	81 7e
  32:	45 8d 66 fd          	lea    -0x3(%r14),%r12d
  36:	bf                   	.byte 0xbf
  37:	fc                   	cld
  38:	ff                   	.byte 0xff