syzbot

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WARNING: CPU: 0 PID: 5568 at net/mac80211/tx.c:5034 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5034 [inline]
WARNING: CPU: 0 PID: 5568 at net/mac80211/tx.c:5034 __ieee80211_beacon_get+0x1200/0x15c0 net/mac80211/tx.c:5461
Modules linked in:
CPU: 0 PID: 5568 Comm: syz-executor578 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #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:5034 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1200/0x15c0 net/mac80211/tx.c:5461
Code: e8 75 57 ac f6 eb 0d e8 6e 57 ac f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 ce 07 01 f7 45 31 ed e9 4e fe ff ff e8 51 57 ac f6 90 <0f> 0b 90 e9 02 f7 ff ff e8 43 57 ac f6 90 0f 0b 90 e9 ea f8 ff ff
RSP: 0018:ffffc90000007a00 EFLAGS: 00010246
RAX: ffffffff8ae89cff RBX: 0000000000000000 RCX: ffff888079e0da00
RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8ae893fd R09: ffffffff8ae88e00
R10: 0000000000000003 R11: ffff888079e0da00 R12: ffff88804a73a2d0
R13: ffff88802b67bc00 R14: ffff88804a73a750 R15: ffff88804a738ca0
FS:  00007f630fe696c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002024a030 CR3: 000000002bb98000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5588
 ieee80211_beacon_get include/net/mac80211.h:5552 [inline]
 mac80211_hwsim_beacon_tx+0x398/0x7e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2296
 __iterate_interfaces+0x223/0x4c0 net/mac80211/util.c:772
 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808
 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2326
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1773
 __do_softirq+0x2bc/0x943 kernel/softirq.c:554
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d 6c cd 1a 0c 48 89 de 5b e9 03 ad 54 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 40 d0 03 00 65 8b 15 e0 db 6e 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc9000523f5b8 EFLAGS: 00000246
RAX: ffffffff8a0b5580 RBX: ffffc9000523f7c8 RCX: ffff888079e0da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000523f6f0 R08: ffffffff8a0b55ef R09: 1ffff1100fe5f481
R10: dffffc0000000000 R11: ffffed100fe5f482 R12: 1ffff92000a47ec0
R13: ffffc9000523f7c0 R14: ffff88807f2fa408 R15: dffffc0000000000
 scm_destroy include/net/scm.h:77 [inline]
 __scm_recv_common include/net/scm.h:170 [inline]
 scm_recv_unix+0x790/0xad0 include/net/scm.h:204
 __unix_dgram_recvmsg+0xe22/0x1450 net/unix/af_unix.c:2511
 sock_recvmsg_nosec+0x18e/0x1d0 net/socket.c:1046
 ____sys_recvmsg+0x3c0/0x470 net/socket.c:2801
 ___sys_recvmsg net/socket.c:2845 [inline]
 do_recvmmsg+0x474/0xae0 net/socket.c:2939
 __sys_recvmmsg net/socket.c:3018 [inline]
 __do_sys_recvmmsg net/socket.c:3041 [inline]
 __se_sys_recvmmsg net/socket.c:3034 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f630fed0dc9
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:00007f630fe69228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f630ff5a378 RCX: 00007f630fed0dc9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f630ff5a370 R08: 0000000000000000 R09: 00007f630fe696c0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007f630ff5a37c
R13: 00007f630ff271b4 R14: 0031313230386c6e R15: 00007ffd9a377d48
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 3d 6c cd 1a 0c    	mov    0xc1acd6c(%rip),%edi        # 0xc1acd72
   6:	48 89 de             	mov    %rbx,%rsi
   9:	5b                   	pop    %rbx
   a:	e9 03 ad 54 00       	jmp    0x54ad12
   f:	0f 1f 00             	nopl   (%rax)
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	f3 0f 1e fa          	endbr64
  26:	48 8b 04 24          	mov    (%rsp),%rax
* 2a:	65 48 8b 0c 25 40 d0 	mov    %gs:0x3d040,%rcx <-- trapping instruction
  31:	03 00
  33:	65 8b 15 e0 db 6e 7e 	mov    %gs:0x7e6edbe0(%rip),%edx        # 0x7e6edc1a
  3a:	f7 c2 00 01 ff 00    	test   $0xff0100,%edx