------------[ cut here ]------------ WARNING: CPU: 1 PID: 16890 at net/mac80211/tx.c:5024 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline] WARNING: CPU: 1 PID: 16890 at net/mac80211/tx.c:5024 __ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453 Modules linked in: CPU: 1 UID: 0 PID: 16890 Comm: syz.6.2953 Not tainted 6.16.0-rc2-syzkaller-00087-g24770983ccfe #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline] RIP: 0010:__ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453 Code: e7 e8 87 91 32 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 78 fe ff ff e8 72 0b da f6 90 0f 0b 90 e9 e0 f7 ff ff e8 64 0b da f6 90 <0f> 0b 90 e9 38 fb ff ff e8 56 0b da f6 48 c7 c7 80 17 79 8f 4c 89 RSP: 0018:ffffc90000a089f8 EFLAGS: 00010246 RAX: ffffffff8ae650ec RBX: ffffffff8ae63ec6 RCX: ffff88802f160000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88802f160000 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888059926500 R13: dffffc0000000000 R14: ffff8880599269d0 R15: ffff888054a7ac24 FS: 00007f5dbe8386c0(0000) GS:ffff888125d51000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3c0be5 CR3: 000000007a517000 CR4: 0000000000350ef0 Call Trace: ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5580 ieee80211_beacon_get include/net/mac80211.h:5638 [inline] mac80211_hwsim_beacon_tx+0x3ce/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2ab/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x286/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194 Code: 74 05 e8 ab 0c 5f f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 53 f8 27 f6 65 8b 05 3c 14 34 07 85 c0 74 40 48 c7 04 24 0e 36 RSP: 0018:ffffc9000416f560 EFLAGS: 00000206 RAX: 10be9745fc2d7600 RBX: 0000000000000216 RCX: 10be9745fc2d7600 RDX: 0000000000000006 RSI: ffffffff8d9823c9 RDI: 0000000000000001 RBP: ffffc9000416f5f8 R08: ffffffff8fa10df7 R09: 1ffffffff1f421be R10: dffffc0000000000 R11: fffffbfff1f421bf R12: dffffc0000000000 R13: 1ffff1100c5e1d95 R14: ffff888062f0ec40 R15: 1ffff9200082deac spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __skb_try_recv_datagram+0x17c/0x4e0 net/core/datagram.c:267 __unix_dgram_recvmsg+0x2d5/0xde0 net/unix/af_unix.c:2503 sock_recvmsg_nosec+0x186/0x1c0 net/socket.c:1017 ____sys_recvmsg+0x3aa/0x460 net/socket.c:2784 ___sys_recvmsg+0x1b5/0x510 net/socket.c:2828 do_recvmmsg+0x307/0x770 net/socket.c:2923 __sys_recvmmsg net/socket.c:2997 [inline] __do_sys_recvmmsg net/socket.c:3020 [inline] __se_sys_recvmmsg net/socket.c:3013 [inline] __x64_sys_recvmmsg+0x190/0x240 net/socket.c:3013 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5dbd98e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5dbe838038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f5dbdbb6080 RCX: 00007f5dbd98e929 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004 RBP: 00007f5dbda10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5dbdbb6080 R15: 00007ffd796fca28 ---------------- Code disassembly (best guess): 0: 74 05 je 0x7 2: e8 ab 0c 5f f6 call 0xf65f0cb2 7: 48 c7 44 24 20 00 00 movq $0x0,0x20(%rsp) e: 00 00 10: 9c pushf 11: 8f 44 24 20 pop 0x20(%rsp) 15: f6 44 24 21 02 testb $0x2,0x21(%rsp) 1a: 75 4f jne 0x6b 1c: f7 c3 00 02 00 00 test $0x200,%ebx 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 53 f8 27 f6 call 0xf627f882 <-- trapping instruction 2f: 65 8b 05 3c 14 34 07 mov %gs:0x734143c(%rip),%eax # 0x7341472 36: 85 c0 test %eax,%eax 38: 74 40 je 0x7a 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss