R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe0585f4cf R14: 00007f43c0ab3300 R15: 0000000000022000 device veth0_vlan entered promiscuous mode device veth0_vlan entered promiscuous mode watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.7:6215] Modules linked in: irq event stamp: 3206913 hardirqs last enabled at (3206912): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (3206913): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (3189126): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3189131): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 6215 Comm: syz-executor.7 Not tainted 5.10.190 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x416/0x1a90 arch/x86/kernel/unwind_orc.c:471 Code: 89 cf 83 e7 07 40 38 fe 40 0f 9e c7 40 84 f6 40 0f 95 c6 40 84 f7 0f 85 fc 14 00 00 83 e0 07 38 c2 40 0f 9e c6 84 d2 0f 95 c0 <40> 84 c6 0f 85 e5 14 00 00 48 0f bf 01 49 01 c1 4c 89 4c 24 60 0f RSP: 0018:ffff88806cf095c8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff85d0b3e0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88806cf096d5 R08: ffffffff85d0b3e5 R09: ffff88806cf09b78 R10: 0000000000032042 R11: 1ffff1100d9e12c1 R12: ffff88806cf096e8 R13: ffff88806cf096a0 R14: 1ffff1100d9e12c1 R15: ffffffff85d0b3e4 FS: 00007fcd0d605700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561e09341738 CR3: 000000004565c000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 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/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 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:446 netdev_alloc_skb include/linux/skbuff.h:2842 [inline] dev_alloc_skb include/linux/skbuff.h:2855 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4874 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4988 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: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:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] RIP: 0010:put_cpu_partial+0x6c/0x130 mm/slub.c:2402 Code: 00 02 00 00 0f 85 96 00 00 00 48 8b 75 00 65 48 03 35 70 5f 96 7e 48 89 ef e8 10 fe ff ff 4d 85 f6 0f 85 83 00 00 00 41 55 9d <31> c0 44 89 e6 31 ff 31 c9 0f b7 53 2a 44 0f b7 43 28 89 73 10 48 RSP: 0018:ffff888047d9f740 EFLAGS: 00000297 RAX: 000000000030a989 RBX: ffffea0000528c00 RCX: 1ffffffff0d1154a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816bb6a1 RBP: ffff888008042140 R08: 0000000000000001 R09: ffffffff8685f757 R10: fffffbfff0d0beea R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000297 R14: 0000000000000200 R15: ffff88800d8d1f00 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 ptlock_alloc+0x1d/0x70 mm/memory.c:5332 ptlock_init include/linux/mm.h:2196 [inline] pgtable_pte_page_ctor include/linux/mm.h:2223 [inline] __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline] pte_alloc_one+0x68/0x1a0 arch/x86/mm/pgtable.c:33 __pte_alloc+0x1d/0x330 mm/memory.c:428 copy_pte_range mm/memory.c:952 [inline] copy_pmd_range mm/memory.c:1070 [inline] copy_pud_range mm/memory.c:1107 [inline] copy_p4d_range mm/memory.c:1131 [inline] copy_page_range+0x1b62/0x3810 mm/memory.c:1204 dup_mmap kernel/fork.c:596 [inline] dup_mm kernel/fork.c:1372 [inline] copy_mm kernel/fork.c:1428 [inline] copy_process+0x759b/0x7800 kernel/fork.c:2118 kernel_clone+0xe7/0x980 kernel/fork.c:2498 __do_sys_fork+0x8a/0xc0 kernel/fork.c:2561 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xcc RIP: 0033:0x7fcd100b0b19 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:00007fcd0d605188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007fcd101c4020 RCX: 00007fcd100b0b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fcd1010af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffeae065df R14: 00007fcd0d605300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess): 0: 89 cf mov %ecx,%edi 2: 83 e7 07 and $0x7,%edi 5: 40 38 fe cmp %dil,%sil 8: 40 0f 9e c7 setle %dil c: 40 84 f6 test %sil,%sil f: 40 0f 95 c6 setne %sil 13: 40 84 f7 test %sil,%dil 16: 0f 85 fc 14 00 00 jne 0x1518 1c: 83 e0 07 and $0x7,%eax 1f: 38 c2 cmp %al,%dl 21: 40 0f 9e c6 setle %sil 25: 84 d2 test %dl,%dl 27: 0f 95 c0 setne %al * 2a: 40 84 c6 test %al,%sil <-- trapping instruction 2d: 0f 85 e5 14 00 00 jne 0x1518 33: 48 0f bf 01 movswq (%rcx),%rax 37: 49 01 c1 add %rax,%r9 3a: 4c 89 4c 24 60 mov %r9,0x60(%rsp) 3f: 0f .byte 0xf