------------[ cut here ]------------
WARNING: CPU: 1 PID: 7485 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
WARNING: CPU: 1 PID: 7485 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Modules linked in:
CPU: 1 PID: 7485 Comm: syz.1.437 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Code: 24 4c 89 e7 e8 ae a6 be f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 b9 db 80 f7 0f 0b e9 f6 f7 ff ff e8 ad db 80 f7 <0f> 0b e9 48 fb ff ff e8 a1 db 80 f7 48 c7 c7 a0 d0 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a064fe3 RBX: ffffffff8a063de6 RCX: ffff88807ada1e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88807ada1e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805cb6a440
R13: dffffc0000000000 R14: ffff88805cb6a930 R15: ffff8880264d1024
FS:  00007fbaa60686c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbaa6067ff8 CR3: 000000005d8ff000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1754 [inline]
 __hrtimer_run_queues+0x520/0xc40 kernel/time/hrtimer.c:1818
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1835
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__might_fault+0x5/0x120 mm/memory.c:5963
Code: 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 e2 bb ff 48 89 df 31 f6 e8 1a c0 fd ff e9 df fe ff ff 0f 1f 44 00 00 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc
RSP: 0018:ffffc90019b1fa48 EFLAGS: 00000246
RAX: ffffffff842a7ed9 RBX: 0000000000000038 RCX: 0000000000080000
RDX: ffffc9000de7e000 RSI: 000000000000000e RDI: ffffffff8b1c4400
RBP: ffffc90019b1fc70 R08: ffffc90019b1fb17 R09: 0000000000000000
R10: ffffc90019b1fae0 R11: fffff52003363f63 R12: ffffc90019b1fbe0
R13: dffffc0000000000 R14: ffffc90019b1fae0 R15: 000020000028e300
 _copy_from_user+0x2a/0xe0 lib/usercopy.c:14
 copy_from_user include/linux/uaccess.h:183 [inline]
 copy_msghdr_from_user net/socket.c:2524 [inline]
 recvmsg_copy_msghdr net/socket.c:2779 [inline]
 ___sys_recvmsg+0x176/0x590 net/socket.c:2851
 do_recvmmsg+0x39a/0x870 net/socket.c:2949
 __sys_recvmmsg net/socket.c:3028 [inline]
 __do_sys_recvmmsg net/socket.c:3051 [inline]
 __se_sys_recvmmsg net/socket.c:3044 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3044
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbaa519ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbaa6068028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fbaa5416090 RCX: 00007fbaa519ce59
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007fbaa5232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbaa5416128 R14: 00007fbaa5416090 R15: 00007ffdb60a9cc8
 </TASK>
----------------
Code disassembly (best guess):
   0:	08 5b 41             	or     %bl,0x41(%rbx)
   3:	5c                   	pop    %rsp
   4:	41 5d                	pop    %r13
   6:	41 5e                	pop    %r14
   8:	41 5f                	pop    %r15
   a:	5d                   	pop    %rbp
   b:	c3                   	ret
   c:	e8 d4 e2 bb ff       	call   0xffbbe2e5
  11:	48 89 df             	mov    %rbx,%rdi
  14:	31 f6                	xor    %esi,%esi
  16:	e8 1a c0 fd ff       	call   0xfffdc035
  1b:	e9 df fe ff ff       	jmp    0xfffffeff
  20:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  25:	f3 0f 1e fa          	endbr64
  29:	55                   	push   %rbp
* 2a:	41 57                	push   %r15 <-- trapping instruction
  2c:	41 56                	push   %r14
  2e:	41 55                	push   %r13
  30:	41 54                	push   %r12
  32:	53                   	push   %rbx
  33:	89 f5                	mov    %esi,%ebp
  35:	49 89 fe             	mov    %rdi,%r14
  38:	49                   	rex.WB
  39:	bc 00 00 00 00       	mov    $0x0,%esp
  3e:	00 fc                	add    %bh,%ah