------------[ cut here ]------------ WARNING: CPU: 1 PID: 4471 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Modules linked in: CPU: 1 PID: 4471 Comm: kworker/1:27 Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: events pwq_unbound_release_workfn 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 e7 c9 b4 f7 0f 0b e9 4b fa ff ff e8 db c9 b4 f7 0f 0b e9 3b fe ff ff e8 cf c9 b4 f7 0f 0b e9 06 ee ff ff e8 c3 c9 b4 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: ffffffff89cba9dd RBX: 0000000000000000 RCX: ffff888026785940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000dd0a70 R08: ffffffff89cb9a68 R09: ffffffff89cb943b R10: 0000000000000003 R11: ffff888026785940 R12: dffffc0000000000 R13: ffff888068f34c80 R14: ffff888068f36298 R15: 1ffff920001ba118 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2eaa275000 CR3: 000000000c68e000 CR4: 00000000003506e0 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:1688 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:preempt_schedule_irq+0xf2/0x1c0 kernel/sched/core.c:6777 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 97 00 00 00 bf 01 00 00 00 e8 89 ab 1a f7 e8 54 22 4a f7 fb bf 01 00 00 00 a9 b3 ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 a9 7c 8d f7 48 RSP: 0018:ffffc900042179c0 EFLAGS: 00000282 RAX: 6bd247c0ceb8f800 RBX: 1ffff92000842f40 RCX: ffffffff81632d68 RDX: dffffc0000000000 RSI: ffffffff8a8b2a80 RDI: 0000000000000001 RBP: ffffc90004217a80 R08: dffffc0000000000 R09: fffffbfff20ec826 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000842f38 R13: 1ffff92000842f3c R14: ffffc900042179e0 R15: dffffc0000000000 irqentry_exit+0x53/0x80 kernel/entry/common.c:432 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:681 RIP: 0010:lockdep_unregister_key+0x54e/0x5c0 kernel/locking/lockdep.c:6331 Code: 00 00 00 0f 85 8b 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ef 61 d1 08 41 f7 c4 00 02 00 00 74 86 fb 45 84 f6 <75> 85 eb 96 0f 0b 45 31 f6 e9 1a ff ff ff 0f 0b e9 5a fe ff ff 0f RSP: 0018:ffffc90004217b40 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 1ffff92000842f70 RCX: ffffffff9686af03 RDX: 0000000000000001 RSI: ffffffff8a8b3880 RDI: ffffffff8ad90540 RBP: ffffc90004217c08 R08: dffffc0000000000 R09: fffffbfff20e6dee R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000a06 R13: 1ffff92000842f6c R14: 0000000000000000 R15: ffffc90004217b80 wq_unregister_lockdep kernel/workqueue.c:3518 [inline] pwq_unbound_release_workfn+0x23d/0x290 kernel/workqueue.c:3756 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 ---------------- Code disassembly (best guess): 0: 89 f5 mov %esi,%ebp 2: 49 c1 ed 03 shr $0x3,%r13 6: eb 0d jmp 0x15 8: 48 f7 03 08 00 00 00 testq $0x8,(%rbx) f: 0f 84 97 00 00 00 je 0xac 15: bf 01 00 00 00 mov $0x1,%edi 1a: e8 89 ab 1a f7 call 0xf71aaba8 1f: e8 54 22 4a f7 call 0xf74a2278 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 a9 b3 ff ff call 0xffffb3d8 <-- trapping instruction 2f: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1) 35: 74 08 je 0x3f 37: 4c 89 f7 mov %r14,%rdi 3a: e8 a9 7c 8d f7 call 0xf78d7ce8 3f: 48 rex.W