------------[ cut here ]------------ WARNING: CPU: 0 PID: 6280 at net/mac80211/tx.c:5042 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5042 [inline] WARNING: CPU: 0 PID: 6280 at net/mac80211/tx.c:5042 __ieee80211_beacon_get+0x11ee/0x1590 net/mac80211/tx.c:5471 Modules linked in: CPU: 0 UID: 0 PID: 6280 Comm: syz.2.98 Not tainted 6.15.0-rc1-next-20250411-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5042 [inline] RIP: 0010:__ieee80211_beacon_get+0x11ee/0x1590 net/mac80211/tx.c:5471 Code: e8 d7 31 1a f6 eb 0d e8 d0 31 1a f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 80 c9 78 f6 45 31 ed e9 4e fe ff ff e8 b3 31 1a f6 90 <0f> 0b 90 e9 22 f7 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c e9 RSP: 0018:ffffc900000079c0 EFLAGS: 00010246 RAX: ffffffff8ba9488d RBX: 0000000000000000 RCX: ffff88802cf2bc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8ba93fab R09: ffffffff8ba939a2 R10: 0000000000000003 R11: ffff88802cf2bc00 R12: ffff888033a5a500 R13: ffff888028979400 R14: ffff888033a5a9d0 R15: ffff888033a58d80 FS: 00007facecf3e6c0(0000) GS:ffff888124f80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30216ff8 CR3: 0000000034090000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb7/0x330 net/mac80211/tx.c:5598 ieee80211_beacon_get include/net/mac80211.h:5648 [inline] mac80211_hwsim_beacon_tx+0x3a2/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2313 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2347 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x5a6/0xd40 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1842 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 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+0xd9/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 2b 00 74 08 4c 89 f7 e8 2d ce f7 f5 f6 44 24 21 02 75 55 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 22 c9 5a f5 65 8b 05 1b 1d 34 07 85 c0 74 46 48 c7 04 24 0e 36 RSP: 0018:ffffc9000f017620 EFLAGS: 00000206 RAX: 3ebf7a1a37950600 RBX: 1ffff92001e02ec8 RCX: 0000000000000006 RDX: 0000000000000006 RSI: ffffffff8e6ab01c RDI: 0000000000000001 RBP: ffffc9000f0176b0 R08: ffffffff906041b7 R09: 1ffffffff20c0836 R10: dffffc0000000000 R11: fffffbfff20c0837 R12: 1ffff92001e02ec4 R13: dffffc0000000000 R14: ffffc9000f017640 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __wake_up_common_lock+0x18c/0x1e0 kernel/sched/wait.c:108 __unix_dgram_recvmsg+0x61a/0x12e0 net/unix/af_unix.c:2439 sock_recvmsg_nosec+0x18e/0x1d0 net/socket.c:1017 ____sys_recvmsg+0x3d4/0x480 net/socket.c:2784 ___sys_recvmsg net/socket.c:2828 [inline] do_recvmmsg+0x428/0xac0 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+0x1ab/0x260 net/socket.c:3013 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7facec18e169 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:00007facecf3e038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007facec3b6080 RCX: 00007facec18e169 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005 RBP: 00007facec210a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007facec3b6080 R15: 00007ffc1172d9d8 ---------------- Code disassembly (best guess): 0: 9c pushf 1: 8f 44 24 20 pop 0x20(%rsp) 5: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 2d ce f7 f5 call 0xf5f7ce41 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 55 jne 0x70 1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d 22: 74 01 je 0x25 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 22 c9 5a f5 call 0xf55ac951 <-- trapping instruction 2f: 65 8b 05 1b 1d 34 07 mov %gs:0x7341d1b(%rip),%eax # 0x7341d51 36: 85 c0 test %eax,%eax 38: 74 46 je 0x80 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss