watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:24166] Modules linked in: irq event stamp: 3343315 hardirqs last enabled at (3343314): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3343315): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3335538): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3335541): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3335541): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 24166 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__save_stack_trace+0x96/0x190 arch/x86/kernel/stacktrace.c:44 Code: 80 e8 0e a5 06 00 8b 55 80 85 d2 75 2d eb 62 41 8b 04 24 41 3b 44 24 04 73 76 49 8b 54 24 08 8d 48 01 41 89 0c 24 48 89 1c c2 <48> 8d 7d 80 e8 e1 90 06 00 8b 45 80 85 c0 74 37 48 8d 7d 80 e8 71 RSP: 0018:ffff8880ba107850 EFLAGS: 00000287 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000017 RBX: ffffffff8138ee45 RCX: 0000000000000018 RDX: ffff8880ba107910 RSI: ffff8880ba1076c0 RDI: ffffffff8138ee45 RBP: ffff8880ba1078e0 R08: 0000000000000001 R09: 0000000000000001 R10: ffff8880ba1078bf R11: 0000000000074071 R12: ffff8880ba1078f8 R13: 0000000000000000 R14: ffff88813bff0940 R15: 0000000000000200 FS: 00007f1dca9b7700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30c25000 CR3: 0000000009e6d000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 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:pte_val arch/x86/include/asm/paravirt.h:389 [inline] RIP: 0010:pte_pfn arch/x86/include/asm/pgtable.h:197 [inline] RIP: 0010:_vm_normal_page+0xa5/0x510 mm/memory.c:834 Code: e8 03 80 3c 18 00 0f 85 16 04 00 00 48 c7 c0 b8 b4 cf 89 4c 8b 64 24 30 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 <0f> 85 e1 03 00 00 48 83 3d d5 31 44 08 00 0f 84 6c 01 00 00 e8 82 RSP: 0018:ffff8880579076c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff139f697 RBX: dffffc0000000000 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: ffffffff818b82a1 RDI: ffff8880aa1d5b58 RBP: 1ffff1100af20edb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 800000005b926007 R13: ffff8880aa1d5b58 R14: 00007f1dcba5e000 R15: ffff8880579076f8 zap_pte_range mm/memory.c:1323 [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+0x1141/0x2c50 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: 0033:0x7f1dcc444639 Code: Bad RIP value. RSP: 002b:00007f1dca9b7218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f1dcc564f88 RCX: 00007f1dcc444639 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1dcc564f88 RBP: 00007f1dcc564f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1dcc564f8c R13: 00007fff21f475af R14: 00007f1dca9b7300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60