------------[ cut here ]------------ WARNING: CPU: 0 PID: 82 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 82 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 82 Comm: kworker/u8:4 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Code: e8 23 82 57 f6 eb 0d e8 1c 82 57 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 7c 17 b0 f6 45 31 ed e9 4c fe ff ff e8 ff 81 57 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 f1 81 57 f6 90 0f 0b 90 e9 e8 f8 ff ff RSP: 0018:ffffc900000079e0 EFLAGS: 00010246 RAX: ffffffff8b67da71 RBX: 0000000000000000 RCX: ffff88801cf1bc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8b67d16d R09: ffffffff8b67cb70 R10: 0000000000000003 R11: ffff88801cf1bc00 R12: ffff88807ddae500 R13: ffff88807a258000 R14: ffff88807ddae9d0 R15: ffff88807ddacd80 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000202d1030 CR3: 000000003154a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5641 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:760 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:796 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1738 [inline] __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1802 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1819 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 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:skb_dequeue+0x0/0x150 net/core/skbuff.c:3890 Code: fe ff ff 48 89 df e8 bf 8f 74 f8 e9 c8 fe ff ff e8 15 81 10 f8 90 0f 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 50 48 89 fb 49 bd 00 00 RSP: 0018:ffffc900015e7a48 EFLAGS: 00000286 RAX: a9e9e917dab37400 RBX: 0000000000000001 RCX: ffffffff819b3cba RDX: dffffc0000000000 RSI: ffffffff8c0aa680 RDI: ffff888076a99990 RBP: ffff888076a99990 R08: ffffffff942c38bf R09: 1ffffffff2858717 R10: dffffc0000000000 R11: fffffbfff2858718 R12: ffff88807ed1bc50 R13: ffff888076a99978 R14: ffff88807494fb40 R15: dffffc0000000000 ieee80211_iface_work+0x286/0xf90 net/mac80211/iface.c:1659 cfg80211_wiphy_work+0x2f0/0x490 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff 48 89 decl -0x77(%rax) 3: df e8 fucomip %st(0),%st 5: bf 8f 74 f8 e9 mov $0xe9f8748f,%edi a: c8 fe ff ff enter $0xfffe,$0xff e: e8 15 81 10 f8 call 0xf8108128 13: 90 nop 14: 0f 0b ud2 16: 66 90 xchg %ax,%ax 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop * 28: f3 0f 1e fa endbr64 <-- trapping instruction 2c: 55 push %rbp 2d: 41 57 push %r15 2f: 41 56 push %r14 31: 41 55 push %r13 33: 41 54 push %r12 35: 53 push %rbx 36: 50 push %rax 37: 48 89 fb mov %rdi,%rbx 3a: 49 rex.WB 3b: bd .byte 0xbd