Unknown status report in ack skb ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at net/mac80211/tx.c:4934 __ieee80211_beacon_get+0x1abc/0x2110 net/mac80211/tx.c:5255 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.127-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline] RIP: 0010:__ieee80211_beacon_get+0x1abc/0x2110 net/mac80211/tx.c:5255 Code: ff ff ff e8 a6 7f 50 f7 0f 0b 48 8b 7c 24 20 e8 ea 31 66 fe e9 6f e8 ff ff e8 90 7f 50 f7 0f 0b e9 92 ed ff ff e8 84 7f 50 f7 <0f> 0b e9 26 f1 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c fc e8 RSP: 0018:ffffc90000007820 EFLAGS: 00010246 RAX: ffffffff8a3a1d1c RBX: 0000000000000000 RCX: ffffffff8d0bd8c0 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007a30 R08: ffffffff8a3a0e3c R09: ffffffff8a3a0642 R10: 0000000000000003 R11: ffffffff8d0bd8c0 R12: dffffc0000000000 R13: 1ffff92000000f1c R14: ffff8880565ce258 R15: ffffffff8a3a0310 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d51aff8 CR3: 0000000027a79000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb1/0x5d0 net/mac80211/tx.c:5342 ieee80211_beacon_get include/net/mac80211.h:5249 [inline] mac80211_hwsim_beacon_tx+0x1d2/0xaa0 drivers/net/wireless/mac80211_hwsim.c:2086 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd4/0x170 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xd0/0x1e0 drivers/net/wireless/mac80211_hwsim.c:2142 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1770 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 instr_sysvec_call_function_single arch/x86/kernel/smp.c:262 [inline] sysvec_call_function_single+0x9d/0xc0 arch/x86/kernel/smp.c:262 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:699 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline] RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:567 Code: 6a cd f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 b4 26 d4 f6 0f 1f 44 00 00 e8 1a 66 cd f6 0f 00 2d d3 65 ab 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 6b f9 24 f7 RSP: 0018:ffffffff8d007b20 EFLAGS: 000002d3 RAX: ffffffff8abd3686 RBX: 0000000000000000 RCX: ffffffff8d0bd8c0 RDX: 0000000000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e67c0 RBP: ffffffff8d007bb0 R08: ffffffff8abd3668 R09: fffffbfff1a17b19 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1a00f64 R13: ffff88801cf2c004 R14: ffffffff8d007b40 R15: dffffc0000000000 acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:704 cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3ce/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401 rest_init+0x2da/0x300 init/main.c:733 arch_call_rest_init+0xa/0xa init/main.c:893 start_kernel+0x496/0x53f init/main.c:1140 secondary_startup_64_no_verify+0xcf/0xdb ---------------- Code disassembly (best guess): 0: 6a cd push $0xffffffffffffffcd 2: f6 48 83 e3 testb $0xe3,-0x7d(%rax) 6: 08 0f or %cl,(%rdi) 8: 85 0b test %ecx,(%rbx) a: 01 00 add %eax,(%rax) c: 00 4c 8d 74 add %cl,0x74(%rbp,%rcx,4) 10: 24 20 and $0x20,%al 12: e8 b4 26 d4 f6 call 0xf6d426cb 17: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1c: e8 1a 66 cd f6 call 0xf6cd663b 21: 0f 00 2d d3 65 ab 00 verw 0xab65d3(%rip) # 0xab65fb 28: fb sti 29: f4 hlt * 2a: 4c 89 f3 mov %r14,%rbx <-- trapping instruction 2d: 48 c1 eb 03 shr $0x3,%rbx 31: 42 80 3c 3b 00 cmpb $0x0,(%rbx,%r15,1) 36: 74 08 je 0x40 38: 4c 89 f7 mov %r14,%rdi 3b: e8 6b f9 24 f7 call 0xf724f9ab