syz-executor.6 (6208) used greatest stack depth: 23536 bytes left kmemleak: 704 new suspected memory leaks (see /sys/kernel/debug/kmemleak) watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:6190] Modules linked in: irq event stamp: 3748945 hardirqs last enabled at (3748944): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (3748945): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (3723948): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3723951): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 6190 Comm: syz-executor.6 Not tainted 5.10.148 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_acquire+0x1b9/0x490 kernel/locking/lockdep.c:5533 Code: 83 db 7e e8 09 91 ff ff b8 ff ff ff ff 48 83 c4 20 65 0f c1 05 28 83 db 7e 83 f8 01 4c 8b 54 24 08 0f 85 6e 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:ffff88806ce09548 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff1100d9c12ab RCX: 0000000099fc7349 RDX: 1ffff1100199daa5 RSI: 32e8b518ed1d8b42 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff86797667 R10: 0000000000000246 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff84ff80a0 R15: 0000000000000000 FS: 00007f30851da700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001d80 CR3: 00000000465ce000 CR4: 0000000000350ef0 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:258 [inline] rcu_read_lock include/linux/rcupdate.h:651 [inline] __is_insn_slot_addr+0x3f/0x260 kernel/kprobes.c:299 is_kprobe_insn_slot include/linux/kprobes.h:309 [inline] kernel_text_address kernel/extable.c:149 [inline] kernel_text_address+0xf2/0x120 kernel/extable.c:120 __kernel_text_address+0x9/0x40 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:323 [inline] unwind_get_return_address+0x55/0xa0 arch/x86/kernel/unwind_orc.c:318 arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 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/0x360 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+0x1a6/0x3f0 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/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1494 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1711 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1765 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1788 __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+0x1b8/0x86b 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:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__slab_free+0x1/0x5d0 mm/slub.c:2970 Code: 00 a8 01 75 f6 e9 1d fe ff ff 48 c7 c6 a0 67 be 84 48 89 ef e8 00 bf f2 ff 0f 0b 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 <49> 89 ca 48 89 e5 41 57 41 56 49 89 fe 41 55 41 54 49 89 f4 53 44 RSP: 0018:ffff888046d1f5f0 EFLAGS: 00000282 RAX: ffff88806ce3ebb0 RBX: 0000000000000000 RCX: ffff888016dd5290 RDX: ffff888016dd5290 RSI: ffffea00005b7500 RDI: ffff888007c4d640 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffffff816bc905 R10: fffffbfff0cf2ecd R11: 0000000000000001 R12: ffff888046d1f638 R13: 0000000080000000 R14: ffffffff80000000 R15: ffff88800d156360 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/0x360 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] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x159/0x360 mm/slub.c:2909 kmem_cache_zalloc include/linux/slab.h:654 [inline] __proc_create+0x2b3/0x8b0 fs/proc/generic.c:431 proc_create_reg+0xb2/0x180 fs/proc/generic.c:558 proc_create_net_data+0x8c/0x1b0 fs/proc/proc_net.c:110 raw_init_net+0x55/0x80 net/ipv4/raw.c:1089 ops_init net/core/net_namespace.c:152 [inline] setup_net+0x377/0x970 net/core/net_namespace.c:344 copy_net_ns+0x2ca/0x5e0 net/core/net_namespace.c:485 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x39e/0x480 kernel/nsproxy.c:179 copy_process+0x2463/0x66f0 kernel/fork.c:2109 kernel_clone+0xe7/0xa20 kernel/fork.c:2467 __do_sys_clone3+0x1e5/0x320 kernel/fork.c:2742 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f3087c64b19 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:00007f30851da188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f3087d77f60 RCX: 00007f3087c64b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000200 RBP: 00007f3087cbef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd7f74c26f R14: 00007f30851da300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6216 Comm: syz-executor Not tainted 5.10.148 #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+0xb1/0x8c0 kernel/locking/qspinlock.c:326 Code: 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 89 42 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 00 00 48 89 df RSP: 0018:ffff88806cf09a38 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffffffff87932ca0 RCX: ffffffff81275d27 RDX: fffffbfff0f26595 RSI: 0000000000000004 RDI: ffffffff87932ca0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87932ca3 R10: fffffbfff0f26594 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f26594 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 00005555571fe400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f546419b000 CR3: 0000000009096000 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:1445 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1711 mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1765 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1788 __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+0x1b8/0x86b 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:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 3e 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 ba 37 45 fd 48 89 ef e8 92 f1 45 fd f6 c7 02 75 10 53 9d <65> ff 0d a4 b2 20 7c 5b 5d e9 5d 83 3e 00 e8 98 b6 64 fd eb e9 66 RSP: 0018:ffff88804743fbf8 EFLAGS: 00000246 RAX: 000000000098ae79 RBX: 0000000000000246 RCX: 1ffffffff0cf6e5a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e1bca8 RBP: ffff888038b801b0 R08: 0000000000000001 R09: ffffffff867976b7 R10: fffffbfff0cf2ed6 R11: 0000000000000001 R12: ffff88801fafe600 R13: ffffc90006867000 R14: ffff888038b801b0 R15: 0000000000000246 scan_object mm/kmemleak.c:1354 [inline] scan_gray_list+0x195/0x3f0 mm/kmemleak.c:1386 kmemleak_scan+0x520/0x11b0 mm/kmemleak.c:1495 kmemleak_write+0x55c/0x660 mm/kmemleak.c:1826 full_proxy_write+0x11d/0x190 fs/debugfs/file.c:236 vfs_write+0x29a/0xa30 fs/read_write.c:603 ksys_write+0x12d/0x260 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f5463c355c3 Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 RSP: 002b:00007ffe3d9e5a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ffe3d9e60b8 RCX: 00007f5463c355c3 RDX: 0000000000000004 RSI: 00007f5463cebed9 RDI: 0000000000000003 RBP: 0000000000000004 R08: 00000000000003be R09: 00007ffe3d9eb080 R10: 00007ffe3d9e5a40 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe3d9e5b50 R14: 0000000000000000 R15: 0000000000000003 hpet: Lost 8 RTC interrupts hpet: Lost 3 RTC interrupts kmemleak: 1147 new suspected memory leaks (see /sys/kernel/debug/kmemleak) ---------------- Code disassembly (best guess): 0: 83 db 7e sbb $0x7e,%ebx 3: e8 09 91 ff ff callq 0xffff9111 8: b8 ff ff ff ff mov $0xffffffff,%eax d: 48 83 c4 20 add $0x20,%rsp 11: 65 0f c1 05 28 83 db xadd %eax,%gs:0x7edb8328(%rip) # 0x7edb8341 18: 7e 19: 83 f8 01 cmp $0x1,%eax 1c: 4c 8b 54 24 08 mov 0x8(%rsp),%r10 21: 0f 85 6e 02 00 00 jne 0x295 27: 41 52 push %r10 29: 9d popfq * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c3 add %rax,%rbx 37: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 3e: 48 rex.W 3f: c7 .byte 0xc7