watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz-executor.0:20523] Modules linked in: irq event stamp: 12627067 hardirqs last enabled at (12627066): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 hardirqs last disabled at (12627067): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (12537966): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (12537966): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 softirqs last disabled at (12537969): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (12537969): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 CPU: 1 PID: 20523 Comm: syz-executor.0 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rht_key_hashfn include/linux/rhashtable.h:159 [inline] RIP: 0010:__rhashtable_lookup+0x20d/0x780 include/linux/rhashtable.h:596 Code: b7 94 24 e2 00 00 00 42 80 3c 30 00 0f 85 3c 05 00 00 49 8d 7d 08 48 8b 8c 24 f0 00 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 <84> c0 74 08 3c 03 0f 8e 15 04 00 00 45 8b 45 08 48 8b 74 24 08 48 RSP: 0018:ffffc90000dd8a28 EFLAGS: 00000a06 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff8867e257 RDI: ffff88802a03af08 RBP: ffff88806a2f0c00 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8867e652 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88802a03af00 R14: dffffc0000000000 R15: ffff88802a03af00 FS: 00007fc733450700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc73342f718 CR3: 0000000034bea000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rhltable_lookup include/linux/rhashtable.h:688 [inline] sta_info_hash_lookup net/mac80211/sta_info.c:162 [inline] sta_info_get_bss+0x144/0x3f0 net/mac80211/sta_info.c:199 __ieee80211_rx_handle_packet net/mac80211/rx.c:4695 [inline] ieee80211_rx_list+0x910/0x2680 net/mac80211/rx.c:4820 ieee80211_rx_napi+0xf7/0x3d0 net/mac80211/rx.c:4843 ieee80211_rx include/net/mac80211.h:4528 [inline] ieee80211_tasklet_handler+0xd4/0x130 net/mac80211/main.c:235 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:784 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:lock_acquire+0x1ef/0x740 kernel/locking/lockdep.c:5480 Code: 46 a8 7e 83 f8 01 0f 85 ee 03 00 00 9c 58 f6 c4 02 0f 85 d9 03 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc9000207fc78 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff9200040ff91 RCX: ffffffff81596357 RDX: 1ffff110074b319e RSI: 0000000000000003 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff9022a8af R10: fffffbfff2045515 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff8c0f4400 R14: 0000000000000000 R15: 0000000000000000 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] chroot_fs_refs+0x11c/0x630 fs/fs_struct.c:70 __do_sys_pivot_root+0xfd7/0x1610 fs/namespace.c:3811 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc733450188 EFLAGS: 00000246 ORIG_RAX: 000000000000009b RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe8aafb78f R14: 00007fc733450300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 20516 Comm: syz-executor.4 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] RIP: 0010:queued_write_lock_slowpath+0x135/0x2c0 kernel/locking/qrwlock.c:78 Code: b8 00 00 00 00 00 fc ff df 49 01 c7 41 83 c6 03 41 0f b6 07 41 38 c6 7c 08 84 c0 0f 85 3e 01 00 00 8b 03 3d 00 01 00 00 74 19 90 41 0f b6 07 41 38 c6 7c ec 84 c0 74 e8 48 89 df e8 e4 5b 5e RSP: 0018:ffffc900019f7a38 EFLAGS: 00000006 RAX: 0000000000000300 RBX: ffffffff8bc0a080 RCX: ffffffff815a306f RDX: fffffbfff1781411 RSI: 0000000000000004 RDI: ffffffff8bc0a080 RBP: 1ffff9200033ef48 R08: 0000000000000001 R09: ffffffff8bc0a083 R10: fffffbfff1781410 R11: 0000000000000000 R12: ffffffff8bc0a084 R13: 00000000000000ff R14: 0000000000000003 R15: fffffbfff1781410 FS: 0000000002ce2400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff34cc17718 CR3: 000000002f690000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queued_write_lock include/asm-generic/qrwlock.h:97 [inline] do_raw_write_lock+0x1ce/0x280 kernel/locking/spinlock_debug.c:207 copy_process+0x3574/0x7120 kernel/fork.c:2235 kernel_clone+0xe7/0xab0 kernel/fork.c:2503 __do_sys_clone+0xc8/0x110 kernel/fork.c:2620 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x467a01 Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00 RSP: 002b:00007ffea5592fb8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff34cc17700 RCX: 0000000000467a01 RDX: 00007ff34cc179d0 RSI: 00007ff34cc172f0 RDI: 00000000003d0f00 RBP: 00007ffea55931f0 R08: 00007ff34cc17700 R09: 00007ff34cc17700 R10: 00007ff34cc179d0 R11: 0000000000000206 R12: 00007ffea559306e R13: 00007ffea559306f R14: 00007ff34cc17300 R15: 0000000000022000