------------[ cut here ]------------ WARNING: CPU: 1 PID: 4568 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Modules linked in: CPU: 1 PID: 4568 Comm: syz-executor.2 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] RIP: 0010:__ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Code: ff e8 77 10 cb f7 0f 0b e9 4b fa ff ff e8 6b 10 cb f7 0f 0b e9 3b fe ff ff e8 5f 10 cb f7 0f 0b e9 06 ee ff ff e8 53 10 cb f7 <0f> 0b e9 91 f0 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 2d ea RSP: 0018:ffffc90000dd0840 EFLAGS: 00010246 RAX: ffffffff89b54c8d RBX: 0000000000000000 RCX: ffff888079879dc0 RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000dd0a70 R08: ffffffff89b53d18 R09: ffffffff89b536eb R10: 0000000000000003 R11: ffff888079879dc0 R12: dffffc0000000000 R13: ffff88805f25cc80 R14: ffff88805f25e298 R15: 1ffff920001ba118 FS: 00007fd019cd66c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020107030 CR3: 000000001eaed000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb7/0x950 net/mac80211/tx.c:5194 ieee80211_beacon_get include/net/mac80211.h:4981 [inline] mac80211_hwsim_beacon_tx+0xe2/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1812 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1686 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1750 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 05 a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 37 45 30 f7 65 8b 05 08 53 db 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc90003db7580 EFLAGS: 00000206 RAX: 4e4280c7869a7a00 RBX: 1ffff920007b6eb4 RCX: ffffffff81631958 RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: 0000000000000001 RBP: ffffc90003db7610 R08: dffffc0000000000 R09: fffffbfff1f7ec2e R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff920007b6eb0 R14: ffffc90003db75a0 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline] __skb_try_recv_datagram+0x1c7/0x6a0 net/core/datagram.c:267 __unix_dgram_recvmsg+0x3c1/0x1260 net/unix/af_unix.c:2314 ____sys_recvmsg+0x286/0x530 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2692 do_recvmmsg+0x36f/0x8f0 net/socket.c:2786 __sys_recvmmsg net/socket.c:2865 [inline] __do_sys_recvmmsg net/socket.c:2888 [inline] __se_sys_recvmmsg net/socket.c:2881 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2881 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fd01b784ea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd019cd60c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fd01b8b3050 RCX: 00007fd01b784ea9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007fd01b7d14a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fd01b8b3050 R15: 00007ffd74c86c08 ---------------- Code disassembly (best guess): 0: 9c pushf 1: 8f 44 24 20 pop 0x20(%rsp) 5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) a: 74 08 je 0x14 c: 4c 89 f7 mov %r14,%rdi f: e8 02 05 a3 f7 call 0xf7a30516 14: f6 44 24 21 02 testb $0x2,0x21(%rsp) 19: 75 4e jne 0x69 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 37 45 30 f7 call 0xf7304566 <-- trapping instruction 2f: 65 8b 05 08 53 db 75 mov %gs:0x75db5308(%rip),%eax # 0x75db533e 36: 85 c0 test %eax,%eax 38: 74 3f je 0x79 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 04 24 add $0x24,%al 3e: 0e (bad) 3f: 36 ss