------------[ cut here ]------------
WARNING: CPU: 1 PID: 25899 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 1 PID: 25899 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 1 PID: 25899 Comm: syz.5.4264 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 ce 2c c2 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 09 73 84 f7 0f 0b e9 f6 f7 ff ff e8 fd 72 84 f7 <0f> 0b e9 48 fb ff ff e8 f1 72 84 f7 48 c7 c7 60 52 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a02a213 RBX: ffffffff8a029016 RCX: ffff88801cfdda00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88801cfdda00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805dab63c0
R13: dffffc0000000000 R14: ffff88805dab68b0 R15: ffff888066938c24
FS:  00007f9e7f5cc6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3f3268 CR3: 000000007ef50000 CR4: 00000000003506e0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5569
 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:1750 [inline]
 __hrtimer_run_queues+0x52a/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 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:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:127 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x89/0x290 mm/kasan/generic.c:187
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 8d 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd
RSP: 0018:ffffc900101ef5c8 EFLAGS: 00000246
RAX: 1ffff9200203df01 RBX: ffffffffffffffff RCX: ffffffff8934eb25
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88805ae5d408
RBP: ffffc900101ef710 R08: ffff88805ae5d40f R09: 1ffff1100b5cba81
R10: dffffc0000000000 R11: ffffed100b5cba81 R12: 0000000000000001
R13: 0000000000000000 R14: ffffed100b5cba82 R15: 1ffff1100b5cba81
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 __scm_recv_common include/net/scm.h:-1 [inline]
 scm_recv_unix+0xc5/0x840 include/net/scm.h:213
 __unix_dgram_recvmsg+0x9ed/0xd80 net/unix/af_unix.c:2487
 sock_recvmsg_nosec+0x82/0xd0 net/socket.c:1046
 ____sys_recvmsg+0x4e8/0x5e0 net/socket.c:2811
 ___sys_recvmsg+0x216/0x590 net/socket.c:2855
 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+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9e7e79c629
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:00007f9e7f5cc028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9e7ea16090 RCX: 00007f9e7e79c629
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f9e7e832b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9e7ea16128 R14: 00007f9e7ea16090 R15: 00007ffc981bbfb8
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 fc                	add    %bh,%ah
   2:	ff                   	lcall  (bad)
   3:	df 4d 8d             	fisttps -0x73(%rbp)
   6:	34 19                	xor    $0x19,%al
   8:	4d 89 f4             	mov    %r14,%r12
   b:	4d 29 dc             	sub    %r11,%r12
   e:	49 83 fc 10          	cmp    $0x10,%r12
  12:	7f 29                	jg     0x3d
  14:	4d 85 e4             	test   %r12,%r12
  17:	0f 84 3d 01 00 00    	je     0x15a
  1d:	4c 89 cb             	mov    %r9,%rbx
  20:	48 f7 d3             	not    %rbx
  23:	4c 01 fb             	add    %r15,%rbx
  26:	41 80 3b 00          	cmpb   $0x0,(%r11)
* 2a:	0f 85 8d 01 00 00    	jne    0x1bd <-- trapping instruction
  30:	49 ff c3             	inc    %r11
  33:	48 ff c3             	inc    %rbx
  36:	75 ee                	jne    0x26
  38:	e9 1d 01 00 00       	jmp    0x15a
  3d:	44 89 dd             	mov    %r11d,%ebp