------------[ cut here ]------------
WARNING: CPU: 0 PID: 7208 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 7208 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 0 PID: 7208 Comm: syz.0.385 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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 8e 80 c0 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 79 be 82 f7 0f 0b e9 f6 f7 ff ff e8 6d be 82 f7 <0f> 0b e9 48 fb ff ff e8 61 be 82 f7 48 c7 c7 00 85 64 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff8a046393 RBX: ffffffff8a045196 RCX: ffff88802267da00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88802267da00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805bdc23c0
R13: dffffc0000000000 R14: ffff88805bdc28b0 R15: ffff888021758c24
FS:  00007ffa300486c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d41dff8 CR3: 0000000026d84000 CR4: 00000000003506f0
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+0x520/0xc40 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:ip6mr_fib_lookup net/ipv6/ip6mr.c:162 [inline]
RIP: 0010:mroute6_is_socket+0x21d/0x380 net/ipv6/ip6mr.c:1656
Code: 48 81 c3 c0 0e 00 00 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 80 3c 30 00 74 08 48 89 df e8 a6 7b 93 f8 48 8b 3b <4c> 89 fe 31 d2 4c 89 e1 e8 a6 97 40 ff 89 c3 31 ff 89 c6 e8 9b 47
RSP: 0018:ffffc9000d00f2a0 EFLAGS: 00000246
RAX: 1ffff1100f54f590 RBX: ffff88807aa7ac80 RCX: d988105a61318200
RDX: 0000000000000002 RSI: ffffffff8acadb60 RDI: ffff888021cf8c00
RBP: ffffc9000d00f410 R08: ffffffff8e8b14ef R09: 1ffffffff1d1629d
R10: dffffc0000000000 R11: fffffbfff1d1629e R12: ffffc9000d00f2e0
R13: 1ffff92001a01e54 R14: dffffc0000000000 R15: ffffc9000d00f330
 ip6_finish_output2+0x32e/0x1630 net/ipv6/ip6_output.c:88
 ip6_send_skb+0x1d5/0x380 net/ipv6/ip6_output.c:2045
 rawv6_push_pending_frames+0x6ee/0x8d0 net/ipv6/raw.c:581
 rawv6_sendmsg+0x131b/0x1770 net/ipv6/raw.c:920
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594
 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648
 __sys_sendmmsg+0x2ca/0x510 net/socket.c:2734
 __do_sys_sendmmsg net/socket.c:2763 [inline]
 __se_sys_sendmmsg net/socket.c:2760 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2760
 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: 0033:0x7ffa2f19c819
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:00007ffa30048028 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007ffa2f416180 RCX: 00007ffa2f19c819
RDX: 0000000000000062 RSI: 0000200000002940 RDI: 0000000000000005
RBP: 00007ffa2f232c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffa2f416218 R14: 00007ffa2f416180 R15: 00007ffc5e496128
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 81 c3 c0 0e 00 00 	add    $0xec0,%rbx
   7:	48 89 d8             	mov    %rbx,%rax
   a:	48 c1 e8 03          	shr    $0x3,%rax
   e:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  15:	fc ff df
  18:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
  1d:	74 08                	je     0x27
  1f:	48 89 df             	mov    %rbx,%rdi
  22:	e8 a6 7b 93 f8       	call   0xf8937bcd
  27:	48 8b 3b             	mov    (%rbx),%rdi
* 2a:	4c 89 fe             	mov    %r15,%rsi <-- trapping instruction
  2d:	31 d2                	xor    %edx,%edx
  2f:	4c 89 e1             	mov    %r12,%rcx
  32:	e8 a6 97 40 ff       	call   0xff4097dd
  37:	89 c3                	mov    %eax,%ebx
  39:	31 ff                	xor    %edi,%edi
  3b:	89 c6                	mov    %eax,%esi
  3d:	e8                   	.byte 0xe8
  3e:	9b                   	fwait
  3f:	47                   	rex.RXB