wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:4348] Modules linked in: irq event stamp: 4970121 hardirqs last enabled at (4970120): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4970121): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (4958968): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4958971): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4348 Comm: syz-executor.5 Not tainted 5.10.238 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xc46/0x1a90 arch/x86/kernel/unwind_orc.c:543 Code: 24 30 48 c1 ea 03 80 3c 02 00 0f 85 e1 0b 00 00 48 8b 14 24 4d 89 65 38 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 9f 0b 00 00 49 8d 7d 58 49 c7 45 50 00 00 00 00 48 b8 00 00 RSP: 0018:ffff88806ce09870 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff85d42e32 RDX: 1ffff1100d9c1333 RSI: ffff8880479c74c0 RDI: ffff8880479c74c0 RBP: ffff88806ce0997d R08: ffffffff85d42e37 R09: ffff8880479c74c8 R10: 0000000000032042 R11: 1ffff1100d9c1316 R12: ffff8880479c74c8 R13: ffff88806ce09948 R14: 1ffff1100d9c1316 R15: ffffffff85d42e36 FS: 00007f5632ffa700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d330000 CR3: 000000001705e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 __save_stack_trace mm/kmemleak.c:563 [inline] create_object.isra.0+0x372/0xa20 mm/kmemleak.c:618 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] kmem_cache_alloc_node+0x169/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:200 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:448 netdev_alloc_skb include/linux/skbuff.h:2855 [inline] dev_alloc_skb include/linux/skbuff.h:2868 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4876 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4990 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x940 drivers/net/wireless/mac80211_hwsim.c:1740 __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:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:do_slab_free mm/slub.c:3115 [inline] RIP: 0010:___cache_free+0x1e7/0x360 mm/slub.c:3156 Code: 7e e8 0d 7a c1 ff 48 c7 c7 60 91 ff 84 48 c7 c6 57 a1 6c 81 e8 9a b3 ba ff 48 89 ef e8 02 82 ff ff 49 8b 04 24 65 48 8b 50 08 <65> 48 03 05 e9 73 95 7e 48 8b 3c 24 48 39 78 10 0f 85 20 01 00 00 RSP: 0018:ffff8880479c7570 EFLAGS: 00000282 RAX: 0000000000040b30 RBX: ffff888016da3340 RCX: ffff8880479c74f8 RDX: 0000000000000c0d RSI: 0000000000000000 RDI: ffff8880482057f8 RBP: ffff888008ed7680 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880083ff280 R13: 0000000000000246 R14: 0000000000000006 R15: 00000000ffffff28 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 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_percpu+0xa0/0x100 mm/kmemleak.c:924 pcpu_alloc+0x4e2/0x1240 mm/percpu.c:1842 __percpu_counter_init+0x10d/0x2d0 lib/percpu_counter.c:149 dst_entries_init include/net/dst_ops.h:65 [inline] xfrm4_net_init+0x45/0x180 net/ipv4/xfrm4_policy.c:222 ops_init+0xbb/0x6b0 net/core/net_namespace.c:156 setup_net+0x2f4/0x900 net/core/net_namespace.c:348 copy_net_ns+0x2c0/0x5d0 net/core/net_namespace.c:518 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x3fb/0x4f0 kernel/nsproxy.c:179 copy_process+0x393a/0x78b0 kernel/fork.c:2214 kernel_clone+0xe7/0x980 kernel/fork.c:2582 __do_sys_clone3+0x1e5/0x320 kernel/fork.c:2857 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f5635a84b19 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:00007f5632ffa188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f5635b97f60 RCX: 00007f5635a84b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000200 RBP: 00007f5635adef6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc9add304f R14: 00007f5632ffa300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:711 ---------------- Code disassembly (best guess): 0: 24 30 and $0x30,%al 2: 48 c1 ea 03 shr $0x3,%rdx 6: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) a: 0f 85 e1 0b 00 00 jne 0xbf1 10: 48 8b 14 24 mov (%rsp),%rdx 14: 4d 89 65 38 mov %r12,0x38(%r13) 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 9f 0b 00 00 jne 0xbcf <-- trapping instruction 30: 49 8d 7d 58 lea 0x58(%r13),%rdi 34: 49 c7 45 50 00 00 00 movq $0x0,0x50(%r13) 3b: 00 3c: 48 rex.W 3d: b8 .byte 0xb8