watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.0:31729] Modules linked in: irq event stamp: 3477537 hardirqs last enabled at (3477536): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3477537): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3465650): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3465653): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3465653): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 31729 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:ether_addr_equal include/linux/etherdevice.h:321 [inline] RIP: 0010:ieee80211_rx_h_sta_process+0x980/0x1ab0 net/mac80211/rx.c:1677 Code: d4 c2 f9 48 8b 5c 24 08 bf 17 00 00 00 48 89 de e8 55 d6 c2 f9 31 c0 48 83 fb 17 76 09 e8 b8 d4 c2 f9 49 8d 47 10 48 89 04 24 ab d4 c2 f9 48 8b 04 24 48 ba 00 00 00 00 00 fc ff df 48 89 c1 RSP: 0018:ffff8880ba0078e0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: ffff88809a6200a0 RBX: 000000000000004c RCX: ffffffff879fb0ab RDX: 0000000000000100 RSI: ffffffff879fb0b8 RDI: 0000000000000007 RBP: ffff888099da4440 R08: 0000000000000001 R09: 0000000000000017 R10: 0000000000000007 R11: 0000000000000000 R12: ffff8880ba007dd8 R13: ffff88809e88c940 R14: ffff88808d226500 R15: ffff88809a620090 FS: 00007fc97902e700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd1c57bf78 CR3: 0000000009e6d000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_rx_handlers+0x5ba/0x9730 net/mac80211/rx.c:3675 ieee80211_invoke_rx_handlers net/mac80211/rx.c:3726 [inline] ieee80211_prepare_and_rx_handle+0x23fa/0x6790 net/mac80211/rx.c:4423 __ieee80211_rx_handle_packet net/mac80211/rx.c:4483 [inline] ieee80211_rx_napi+0x108d/0x2470 net/mac80211/rx.c:4672 ieee80211_rx include/net/mac80211.h:4109 [inline] ieee80211_tasklet_handler+0x101/0x160 net/mac80211/main.c:229 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:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_acquire+0x1ec/0x3c0 kernel/locking/lockdep.c:3911 Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d 09 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b RSP: 0018:ffff888049af7668 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff8880980b2480 RCX: 101c7ce80a9a1d98 RDX: dffffc0000000000 RSI: 00000000015b370c RDI: 0000000000000286 RBP: ffffffff89f85fa0 R08: 00000000c985a8da R09: 0000000000000001 R10: ffff8880980b2d30 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] lock_page_memcg+0x36/0x220 mm/memcontrol.c:1908 page_remove_file_rmap+0x36/0xa30 mm/rmap.c:1212 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 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: 0033:0x7fc97a6db5a9 Code: Bad RIP value. RSP: 002b:00007fc97902df28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f RAX: 0000000000000004 RBX: 0000000000000000 RCX: 00007fc97a6db5a9 RDX: 00007fc97902dfe0 RSI: 0000000000000000 RDI: 00007fc97a7355cc RBP: 00007fc97a736560 R08: 00007fc97902dfd8 R09: 0000000000000000 R10: 00007fc97902dfdc R11: 0000000000000206 R12: 00000000200002c0 R13: 0000000000000000 R14: 00007fc97902dfe0 R15: 00000000200000c0 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