watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:6649] Modules linked in: irq event stamp: 4488051 hardirqs last enabled at (4488050): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4488051): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (4476606): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4476609): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 6649 Comm: syz-executor.6 Not tainted 5.10.123 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:120 [inline] RIP: 0010:__slab_alloc mm/slub.c:2776 [inline] RIP: 0010:slab_alloc_node mm/slub.c:2861 [inline] RIP: 0010:slab_alloc mm/slub.c:2904 [inline] RIP: 0010:kmem_cache_alloc+0x2f4/0x350 mm/slub.c:2909 Code: 3d 78 f7 d9 03 00 75 e2 48 c7 c2 40 fe 9c 84 be 36 00 00 00 48 c7 c7 1f e2 9d 84 c6 05 5c f7 d9 03 01 e8 b4 95 65 02 eb c1 9c <5b> fa f6 c7 02 75 24 4c 89 e1 ba ff ff ff ff 44 89 f6 48 89 ef e8 RSP: 0018:ffff88806ce09a18 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000092a20 RDX: 0000000000212744 RSI: 0000000000000170 RDI: ffffffff84e9ccc0 RBP: ffff888007c4d640 R08: ffff88806ce3ebb0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff816da96a R13: 0000000000000000 R14: 0000000000092a20 R15: 0000000000092a20 FS: 00007f6f10d80700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d52a000 CR3: 00000000498e0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x1a6/0x3f0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0xb1/0x620 net/core/skbuff.c:210 skb_copy+0x137/0x2f0 net/core/skbuff.c:1522 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13c0 drivers/net/wireless/mac80211_hwsim.c:1495 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1712 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1766 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1789 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x867 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:qlink_free mm/kasan/quarantine.c:151 [inline] RIP: 0010:qlist_free_all+0x3f/0xd0 mm/kasan/quarantine.c:170 Code: a3 00 00 00 49 89 fc 41 bd 00 00 00 80 49 c7 c6 00 00 00 80 48 bd 00 00 00 00 00 fc ff df eb 2c 48 63 87 c0 00 00 00 4c 8b 3e <48> c7 c2 15 07 6b 81 48 29 c6 48 89 f0 48 c1 e8 03 c6 04 28 fb e8 RSP: 0018:ffff8880472d7830 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffea00005fe07f RDX: 0000000000000000 RSI: ffff888017fa7180 RDI: ffff888007c418c0 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff816b0700 R10: ffff888017fa7400 R11: 0000000000000001 R12: ffff8880472d7868 R13: 0000000080000000 R14: ffffffff80000000 R15: ffff88803a7cf400 quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0x9e/0xd0 mm/kasan/common.c:442 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] rpc_mkpipe_data+0x45/0x470 net/sunrpc/rpc_pipe.c:568 rpc_pipefs_init_net+0x149/0x380 net/sunrpc/rpc_pipe.c:1202 sunrpc_init_net+0x2e6/0x3d0 net/sunrpc/sunrpc_syms.c:49 ops_init net/core/net_namespace.c:152 [inline] setup_net+0x377/0x970 net/core/net_namespace.c:344 copy_net_ns+0x2ca/0x5d0 net/core/net_namespace.c:485 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x39a/0x480 kernel/nsproxy.c:179 copy_process+0x245f/0x66f0 kernel/fork.c:2108 kernel_clone+0xe7/0xa20 kernel/fork.c:2466 __do_sys_clone3+0x1dd/0x310 kernel/fork.c:2741 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f6f1380ab19 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:00007f6f10d80188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f6f1391df60 RCX: 00007f6f1380ab19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000200 RBP: 00007f6f13864f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde822b14f R14: 00007f6f10d80300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.123 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x11e/0x8c0 kernel/locking/qspinlock.c:326 Code: 8b 84 24 80 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 05 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 f3 90 77 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff876edca0 RCX: ffffffff8126fcf7 RDX: fffffbfff0eddb95 RSI: 0000000000000004 RDI: ffffffff876edca0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff876edca3 R10: fffffbfff0eddb94 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0eddb94 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562f6e110678 CR3: 000000001c8d6000 CR4: 0000000000350ee0 Call Trace: queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1d8/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x695/0x13c0 drivers/net/wireless/mac80211_hwsim.c:1446 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1712 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1766 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1789 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x867 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:default_idle+0xe/0x10 arch/x86/kernel/process.c:690 Code: ff ff ff 4c 89 e7 e8 91 7a 8c fd eb 93 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 e9 07 00 00 00 0f 00 2d 94 b5 43 00 fb f4 cc 41 55 41 54 55 48 89 fd 53 e8 d2 17 61 fd 48 8b 1d fb d2 03 RSP: 0018:ffff88800857fe78 EFLAGS: 00000206 RAX: ffffffff83de8980 RBX: ffff88800852cc80 RCX: ffffffff83dd0768 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83de8d2f RBP: ffffed10010a5990 R08: 0000000000000001 R09: ffff88806cf3c12b R10: ffffed100d9e7825 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff8546f948 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x87/0xd0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3a9/0x520 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 secondary_startup_64_no_verify+0xc2/0xcb hpet: Lost 5 RTC interrupts hpet: Lost 3 RTC interrupts ---------------- Code disassembly (best guess): 0: 3d 78 f7 d9 03 cmp $0x3d9f778,%eax 5: 00 75 e2 add %dh,-0x1e(%rbp) 8: 48 c7 c2 40 fe 9c 84 mov $0xffffffff849cfe40,%rdx f: be 36 00 00 00 mov $0x36,%esi 14: 48 c7 c7 1f e2 9d 84 mov $0xffffffff849de21f,%rdi 1b: c6 05 5c f7 d9 03 01 movb $0x1,0x3d9f75c(%rip) # 0x3d9f77e 22: e8 b4 95 65 02 callq 0x26595db 27: eb c1 jmp 0xffffffea 29: 9c pushfq * 2a: 5b pop %rbx <-- trapping instruction 2b: fa cli 2c: f6 c7 02 test $0x2,%bh 2f: 75 24 jne 0x55 31: 4c 89 e1 mov %r12,%rcx 34: ba ff ff ff ff mov $0xffffffff,%edx 39: 44 89 f6 mov %r14d,%esi 3c: 48 89 ef mov %rbp,%rdi 3f: e8 .byte 0xe8