syzbot

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WARNING: CPU: 1 PID: 3782 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075
Modules linked in:
CPU: 1 PID: 3782 Comm: syz-executor140 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
RIP: 0010:__ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075
Code: ff e8 77 10 cb f7 0f 0b e9 4b fa ff ff e8 6b 10 cb f7 0f 0b e9 3b fe ff ff e8 5f 10 cb f7 0f 0b e9 06 ee ff ff e8 53 10 cb f7 <0f> 0b e9 91 f0 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 2d ea
RSP: 0018:ffffc90000dd0840 EFLAGS: 00010246
RAX: ffffffff89b54c8d RBX: 0000000000000000 RCX: ffff888075291dc0
RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0a70 R08: ffffffff89b53d18 R09: ffffffff89b536eb
R10: 0000000000000003 R11: ffff888075291dc0 R12: dffffc0000000000
R13: ffff888078784c80 R14: ffff888078786298 R15: 1ffff920001ba118
FS:  00007f062f0226c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020127030 CR3: 000000001d75f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb7/0x950 net/mac80211/tx.c:5194
 ieee80211_beacon_get include/net/mac80211.h:4981 [inline]
 mac80211_hwsim_beacon_tx+0xe2/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1686 [inline]
 __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1750
 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767
 __do_softirq+0x3b3/0x93a kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__unix_dgram_recvmsg+0xd31/0x1260 net/unix/af_unix.c:2397
Code: 66 43 c7 44 3d 15 00 00 43 c6 44 3d 17 00 65 48 8b 0c 25 28 00 00 00 48 3b 8c 24 60 01 00 00 0f 85 de 04 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 49 89 c5 e8 cd ee 8b f8 4c 8b 7c 24
RSP: 0018:ffffc900037678d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88806f4f3600 RCX: 2977a4644d491600
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900037676c0
RBP: ffffc900037678f0 R08: dffffc0000000000 R09: fffff520006eced9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920006ecefc
 ____sys_recvmsg+0x286/0x530
 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2692
 do_recvmmsg+0x36f/0x8f0 net/socket.c:2786
 __sys_recvmmsg net/socket.c:2865 [inline]
 __do_sys_recvmmsg net/socket.c:2888 [inline]
 __se_sys_recvmmsg net/socket.c:2881 [inline]
 __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2881
 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: 0033:0x7f062f083e09
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 1a 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f062f022228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f062f10d378 RCX: 00007f062f083e09
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f062f10d370 R08: 0000000000000000 R09: 00007f062f0226c0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007f062f10d37c
R13: 00007f062f0da1c4 R14: 0031313230386c6e R15: 00007ffda9830328
 </TASK>
----------------
Code disassembly (best guess):
   0:	66 43 c7 44 3d 15 00 	movw   $0x0,0x15(%r13,%r15,1)
   7:	00
   8:	43 c6 44 3d 17 00    	movb   $0x0,0x17(%r13,%r15,1)
   e:	65 48 8b 0c 25 28 00 	mov    %gs:0x28,%rcx
  15:	00 00
  17:	48 3b 8c 24 60 01 00 	cmp    0x160(%rsp),%rcx
  1e:	00
  1f:	0f 85 de 04 00 00    	jne    0x503
  25:	48 8d 65 d8          	lea    -0x28(%rbp),%rsp
  29:	5b                   	pop    %rbx
* 2a:	41 5c                	pop    %r12 <-- trapping instruction
  2c:	41 5d                	pop    %r13
  2e:	41 5e                	pop    %r14
  30:	41 5f                	pop    %r15
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	49 89 c5             	mov    %rax,%r13
  37:	e8 cd ee 8b f8       	call   0xf88bef09
  3c:	4c                   	rex.WR
  3d:	8b                   	.byte 0x8b
  3e:	7c 24                	jl     0x64