------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5024 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline] WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:5024 __ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453 Modules linked in: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 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 77 7b 37 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 78 fe ff ff e8 22 20 e1 f6 90 0f 0b 90 e9 e0 f7 ff ff e8 14 20 e1 f6 90 <0f> 0b 90 e9 38 fb ff ff e8 06 20 e1 f6 48 c7 c7 c0 f4 77 8f 4c 89 RSP: 0018:ffffc900000079f8 EFLAGS: 00010246 RAX: ffffffff8adf3b3c RBX: ffffffff8adf2916 RCX: ffffffff8de95280 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8de95280 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888028c66500 R13: dffffc0000000000 R14: ffff888028c669d0 R15: ffff888028743424 FS: 0000000000000000(0000) GS:ffff888125c85000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa21e9b3f98 CR3: 000000000df38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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+0x2a8/0x590 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+0x529/0xc60 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:steal_cookie_task kernel/sched/core.c:6411 [inline] RIP: 0010:sched_core_balance+0x5bd/0xf00 kernel/sched/core.c:6431 Code: 00 48 8b 7c 24 08 e8 32 a5 ce 09 e9 29 06 00 00 4c 8b 64 24 10 48 8b 7c 24 28 e8 1e a5 ce 09 e8 d9 d1 34 00 fb 80 7c 24 20 00 <4c> 8b 7c 24 48 48 8b 54 24 18 0f 85 36 07 00 00 41 ff c6 41 83 e6 RSP: 0018:ffffffff8de079a0 EFLAGS: 00000246 RAX: 7b03c47cb34d2700 RBX: ffffffff8de95280 RCX: 7b03c47cb34d2700 RDX: 0000000000000000 RSI: ffffffff8d96eade RDI: ffffffff8be1b800 RBP: ffffffff8de07b20 R08: ffffffff8f9fe3f7 R09: 1ffffffff1f3fc7e R10: dffffc0000000000 R11: fffffbfff1f3fc7f R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b863b780 do_balance_callbacks kernel/sched/core.c:5042 [inline] __balance_callbacks+0x110/0x190 kernel/sched/core.c:5096 __schedule+0x18ed/0x4cb0 kernel/sched/core.c:6788 schedule_idle+0x52/0x90 kernel/sched/core.c:6904 do_idle+0x4ad/0x510 kernel/sched/idle.c:353 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:423 rest_init+0x2de/0x300 init/main.c:745 start_kernel+0x47d/0x500 init/main.c:1102 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:307 x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:288 common_startup_64+0x13e/0x147 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi 5: e8 32 a5 ce 09 call 0x9cea53c a: e9 29 06 00 00 jmp 0x638 f: 4c 8b 64 24 10 mov 0x10(%rsp),%r12 14: 48 8b 7c 24 28 mov 0x28(%rsp),%rdi 19: e8 1e a5 ce 09 call 0x9cea53c 1e: e8 d9 d1 34 00 call 0x34d1fc 23: fb sti 24: 80 7c 24 20 00 cmpb $0x0,0x20(%rsp) * 29: 4c 8b 7c 24 48 mov 0x48(%rsp),%r15 <-- trapping instruction 2e: 48 8b 54 24 18 mov 0x18(%rsp),%rdx 33: 0f 85 36 07 00 00 jne 0x76f 39: 41 ff c6 inc %r14d 3c: 41 rex.B 3d: 83 .byte 0x83 3e: e6 .byte 0xe6