wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:2429] Modules linked in: irq event stamp: 3446533 hardirqs last enabled at (3446532): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3446533): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3440594): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3440599): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3440599): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 2429 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x7e2/0x1330 drivers/net/wireless/mac80211_hwsim.c:1315 Code: 00 00 00 c6 84 24 98 00 00 00 00 74 bb e8 86 65 bb fc 48 8d bb 9c 12 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 <38> d0 7f 08 84 c0 0f 85 b0 08 00 00 44 0f b6 bb 9c 12 00 00 31 ff RSP: 0018:ffff8880ba007c38 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff888043a1ca20 RCX: ffffffff84a7218a RDX: 0000000000000004 RSI: ffffffff84a71fea RDI: ffff888043a1dcbc RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000007 R10: 0000000000000004 R11: 0000000000000000 R12: ffff88801228adc0 R13: ffff88804b894ae0 R14: ffff88804b894bf8 R15: 0000000000000027 FS: 00007f7c58790700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c016a69000 CR3: 000000004da57000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:compound_head include/linux/page-flags.h:142 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:418 [inline] RIP: 0010:zap_pte_range mm/memory.c:1340 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1463 [inline] RIP: 0010:zap_pud_range mm/memory.c:1492 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1513 [inline] RIP: 0010:unmap_page_range+0x124a/0x2c50 mm/memory.c:1534 Code: 39 79 18 48 0f 43 41 18 4d 85 ed 48 89 41 18 0f 84 36 fe ff ff e8 36 e7 d6 ff 49 8d 6d 08 48 89 e8 48 c1 e8 03 42 80 3c 30 00 <0f> 85 df 16 00 00 49 8b 45 08 31 ff 4d 89 ec 48 89 c3 48 89 84 24 RSP: 0018:ffff888234377770 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffffd40004fa0f1 RBX: 0000000000000001 RCX: ffff8882343779b0 RDX: 0000000000000000 RSI: ffffffff818b9e3a RDI: ffff8882343779c8 RBP: ffffea00027d0788 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 800000009f41e007 R13: ffffea00027d0780 R14: dffffc0000000000 R15: 00007f7c59319000 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f7c5a21e0c9 Code: Bad RIP value. RSP: 002b:00007f7c58790168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffe0 RBX: 00007f7c5a33df80 RCX: 00007f7c5a21e0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f7c5a279ae9 R08: 0000000020e68000 R09: 0000000000000010 R10: 00000000020007fd R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6a891caf R14: 00007f7c58790300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60