watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:31179] Modules linked in: irq event stamp: 2324105 hardirqs last enabled at (2324104): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2324105): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2318314): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2318317): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2318317): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 31179 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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100 Code: e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 <65> 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 RSP: 0018:ffff8880ba107d60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000101 RBX: 0000000000000000 RCX: ffffffff8670c5ea RDX: 0000000000000000 RSI: ffffffff8670c3f2 RDI: 0000000000000001 RBP: ffff88808fec1180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88808fec1264 R13: ffff8880535fce38 R14: 0000000000000000 R15: ffff8880535fcd20 FS: 00007f66c50a4700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f66c50a3e40 CR3: 000000005a22f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_all net/core/skbuff.c:638 [inline] __kfree_skb net/core/skbuff.c:654 [inline] consume_skb+0xd2/0x3d0 net/core/skbuff.c:714 mac80211_hwsim_tx_frame+0x133/0x210 drivers/net/wireless/mac80211_hwsim.c:1557 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:page_remove_file_rmap+0x65/0xa30 mm/rmap.c:1246 Code: 6e 04 00 31 ff 89 c3 89 c6 e8 e7 d5 d2 ff 85 db 74 33 e8 6e d4 d2 ff 49 8d 7e 54 be 04 00 00 00 e8 e0 9d 08 00 f0 41 ff 4e 54 56 d4 d2 ff 4c 89 f7 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffff8880526af9b8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff818fb155 RDX: 0000000000000000 RSI: ffff888059500140 RDI: 0000000000000001 RBP: ffffea00016a9e00 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea00016a9e00 R15: 00007f66c5fd9000 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [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+0x147d/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 __do_sys_exit_group kernel/exit.c:978 [inline] __se_sys_exit_group kernel/exit.c:976 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f66c6b32189 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f66c50a3c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f66c6c51f88 RCX: 00007f66c6b32189 RDX: 00007f66c6b32189 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 0000000000000007 R08: 0000000000000000 R09: 00007f66c6c51f88 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f66c6c51f8c R13: 00007fff9500729f R14: 00007f66c50a4300 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