watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:15972] Modules linked in: irq event stamp: 3274221 hardirqs last enabled at (3274220): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3274221): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3247934): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3247937): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3247937): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 15972 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:unwind_next_frame+0xf48/0x1400 arch/x86/kernel/unwind_orc.c:555 Code: 48 89 f8 48 c1 e8 03 44 0f b6 04 30 49 8d 47 03 49 89 c1 49 c1 e9 03 41 0f b6 34 31 49 89 f9 41 83 e1 07 45 38 c8 41 0f 9e c1 <45> 84 c0 41 0f 95 c0 45 84 c1 0f 85 b3 02 00 00 83 e0 07 40 38 c6 RSP: 0018:ffff8880ba007778 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8b99dea3 RBX: 1ffff11017400ef8 RCX: ffffffff8b99dea5 RDX: ffff8880ba0078e8 RSI: 0000000000000000 RDI: ffffffff8b99dea2 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000001 R10: ffff8880ba007907 R11: 0000000000074071 R12: ffff8880ba007b90 R13: ffff8880ba0078dd R14: ffff8880ba0078a8 R15: ffffffff8b99dea0 FS: 00007f5e5f856700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffec3a29ac0 CR3: 0000000009e6d000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __save_stack_trace+0xd6/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 __do_kmalloc_node mm/slab.c:3689 [inline] __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 skb_copy+0x139/0x2f0 net/core/skbuff.c:1358 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb8a/0x1330 drivers/net/wireless/mac80211_hwsim.c:1353 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:__tlb_remove_page_size+0x30/0x470 mm/memory.c:308 Code: f6 41 55 41 54 55 89 d5 53 48 89 fb e8 b9 52 d7 ff 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 a8 03 00 00 4c 8b 63 18 31 ff 4c 89 e6 e8 1c 54 d7 ff 4d 85 RSP: 0018:ffff88802d3a7738 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88802d3a79b0 RCX: ffffffff818ba0c8 RDX: 1ffff11005a74f39 RSI: ffffffff818b32b7 RDI: ffff88802d3a79c8 RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000100 R13: ffffea00026f1ac0 R14: ffffea00026f1ac0 R15: 00007f5e60b43000 __tlb_remove_page include/asm-generic/tlb.h:161 [inline] zap_pte_range mm/memory.c:1353 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x14e7/0x2c50 mm/memory.c:1534 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: 0033:0x7f5e60ee0517 Code: Bad RIP value. RSP: 002b:00007f5e5f855f88 EFLAGS: 00000213 ORIG_RAX: 0000000000000102 RAX: 0000000000000000 RBX: 0000000020000180 RCX: 00007f5e60ee0517 RDX: 00000000000001ff RSI: 0000000020000080 RDI: 00000000ffffff9c RBP: 00007f5e60f3c367 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000213 R12: 0000000020000040 R13: 0000000020000080 R14: 00007f5e5f855fe0 R15: 00000000200006c0 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