mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.3:4164] Modules linked in: irq event stamp: 3588787 hardirqs last enabled at (3588786): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (3588787): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (3572344): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3572355): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4164 Comm: syz-executor.3 Not tainted 5.10.191 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__kasan_kmalloc.constprop.0+0x4f/0xd0 mm/kasan/common.c:449 Code: 61 41 8b 56 1c 4b 8d 44 3c ff 4c 89 fe 4c 89 e7 48 83 c8 07 48 8d 58 01 4d 8d 6c 14 ff 48 89 04 24 e8 65 ff ff ff 48 8b 04 24 <49> 83 cd 07 48 89 d9 48 c1 e9 03 be fc 00 00 00 49 29 c5 48 b8 00 RSP: 0018:ffff88806ce099e0 EFLAGS: 00000286 RAX: ffff88800cf0509f RBX: ffff88800cf050a0 RCX: 0000000000000000 RDX: 0000000000000006 RSI: 0000000000000000 RDI: ffffed10019e0a14 RBP: 0000000000092a20 R08: ffffed10019e09e6 R09: ffffed10019e09e6 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800cf04f30 R13: ffff88800cf0509f R14: ffff88800804d640 R15: 0000000000000170 FS: 00007fad2ac33700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94f8543269 CR3: 0000000045eec000 CR4: 0000000000350ef0 Call Trace: slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 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+0x1a6/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:210 skb_copy+0x137/0x2f0 net/core/skbuff.c:1521 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x7c9 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+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:lock_acquire+0x1b9/0x470 kernel/locking/lockdep.c:5533 Code: 5f db 7e e8 39 91 ff ff b8 ff ff ff ff 48 83 c4 20 65 0f c1 05 a8 5f db 7e 83 f8 01 4c 8b 54 24 08 0f 85 48 02 00 00 41 52 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff888046907470 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff11008d20e90 RCX: 00000000142618d2 RDX: 1ffff11008ae2128 RSI: ce7424e05ac454cc RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8685f6e7 R10: 0000000000000246 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff84ff8560 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:260 [inline] rcu_read_lock include/linux/rcupdate.h:660 [inline] percpu_ref_put_many.constprop.0+0x2b/0x110 include/linux/percpu-refcount.h:317 percpu_ref_put include/linux/percpu-refcount.h:338 [inline] obj_cgroup_put include/linux/memcontrol.h:518 [inline] memcg_slab_free_hook mm/slab.h:385 [inline] memcg_slab_free_hook mm/slab.h:351 [inline] do_slab_free mm/slub.c:3105 [inline] ___cache_free+0x1de/0x360 mm/slub.c:3156 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 sk_prot_alloc+0x5f/0x2c0 net/core/sock.c:1688 sk_alloc+0x30/0x350 net/core/sock.c:1748 inet6_create net/ipv6/af_inet6.c:190 [inline] inet6_create+0x347/0x1010 net/ipv6/af_inet6.c:117 __sock_create+0x358/0x7f0 net/socket.c:1416 inet_ctl_sock_create+0x89/0x1e0 net/ipv4/af_inet.c:1657 ops_init+0xbb/0x6b0 net/core/net_namespace.c:153 setup_net+0x2d8/0x810 net/core/net_namespace.c:351 copy_net_ns+0x2cf/0x5e0 net/core/net_namespace.c:492 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x3fb/0x4f0 kernel/nsproxy.c:179 copy_process+0x385b/0x7800 kernel/fork.c:2121 kernel_clone+0xe7/0x980 kernel/fork.c:2498 __do_sys_clone3+0x1e5/0x320 kernel/fork.c:2773 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xcc RIP: 0033:0x7fad2d6bdb19 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:00007fad2ac33188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fad2d7d0f60 RCX: 00007fad2d6bdb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000200 RBP: 00007fad2d717f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbd62368f R14: 00007fad2ac33300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.191 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:28 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:99 [inline] RIP: 0010:queued_spin_lock_slowpath+0xac/0x8c0 kernel/locking/qspinlock.c:326 Code: b8 00 00 00 00 00 fc ff df 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 b9 84 44 00 41 0f b6 45 00 <41> 38 c4 7c 08 84 c0 0f 85 eb 06 00 00 8b 2b 85 ed 75 61 be 04 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000296 RAX: 0000000000000000 RBX: ffffffff879fafa0 RCX: ffffffff812780a7 RDX: fffffbfff0f3f5f5 RSI: 0000000000000004 RDI: ffffffff879fafa0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff879fafa3 R10: fffffbfff0f3f5f4 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f3f5f4 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ced6fa7678 CR3: 000000000d068000 CR4: 0000000000350ee0 Call Trace: queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1dc/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x695/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1450 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x7c9 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+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:default_idle+0xe/0x20 arch/x86/kernel/process.c:707 Code: 86 fd e9 4b ff ff ff 4c 89 e7 e8 5d f8 86 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 e9 07 00 00 00 0f 00 2d 94 0b 5d 00 fb f4 ed 0c 3b 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffff88800897fe70 EFLAGS: 00000282 RAX: ffffffff83e53320 RBX: 0000000000000001 RCX: ffffffff83e3b3dc RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e53928 RBP: ffffed100112e000 R08: 0000000000000001 R09: ffff88806cf3c16b R10: ffffed100d9e782d R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff85671588 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0xbf/0x2c0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3ad/0x520 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 secondary_startup_64_no_verify+0xc2/0xcb Bluetooth: hci2: command 0x0409 tx timeout Bluetooth: hci2: command 0x041b tx timeout Bluetooth: hci2: command 0x040f tx timeout ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 41 8b 56 1c mov 0x1c(%r14),%edx 4: 4b 8d 44 3c ff lea -0x1(%r12,%r15,1),%rax 9: 4c 89 fe mov %r15,%rsi c: 4c 89 e7 mov %r12,%rdi f: 48 83 c8 07 or $0x7,%rax 13: 48 8d 58 01 lea 0x1(%rax),%rbx 17: 4d 8d 6c 14 ff lea -0x1(%r12,%rdx,1),%r13 1c: 48 89 04 24 mov %rax,(%rsp) 20: e8 65 ff ff ff callq 0xffffff8a 25: 48 8b 04 24 mov (%rsp),%rax * 29: 49 83 cd 07 or $0x7,%r13 <-- trapping instruction 2d: 48 89 d9 mov %rbx,%rcx 30: 48 c1 e9 03 shr $0x3,%rcx 34: be fc 00 00 00 mov $0xfc,%esi 39: 49 29 c5 sub %rax,%r13 3c: 48 rex.W 3d: b8 .byte 0xb8