SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=5134 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=5150 comm=syz-executor.1 watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:5118] Modules linked in: irq event stamp: 5569085 hardirqs last enabled at (5569084): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5569085): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5543476): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5543479): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5118 Comm: syz-executor.0 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:68 Code: 0a fe ff ff e8 ae 57 5c 00 e9 bf fd ff ff e8 a4 57 5c 00 e9 8c fd ff ff e8 9a 57 5c 00 e9 44 fd ff ff cc cc cc cc cc 48 8b 07 88 d4 0f 03 0f 1f 84 00 00 00 00 00 41 57 89 d0 41 56 41 55 41 RSP: 0018:ffff88806ce09628 EFLAGS: 00000297 RAX: ffffffff8118124c RBX: ffff88806ce09780 RCX: ffff88806ce09780 RDX: dffffc0000000000 RSI: ffff88800d0cfcb0 RDI: ffff88800d0cfcb0 RBP: ffff88800d0cfcb0 R08: ffffffff8598a797 R09: ffff88800d0cfcb8 R10: 0000000000032042 R11: 1ffff1100d9c12d4 R12: ffff88806ce09738 R13: ffff88800d0c8000 R14: 1ffff1100d9c12d4 R15: ffffffff8598a796 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe48cb0ff8 CR3: 0000000041276000 CR4: 0000000000350ef0 Call Trace: deref_stack_reg+0xf2/0x160 arch/x86/kernel/unwind_orc.c:360 unwind_next_frame+0xbf8/0x1a90 arch/x86/kernel/unwind_orc.c:536 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] __kmalloc_node_track_caller+0x189/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:144 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:212 __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:__sanitizer_cov_trace_cmp4+0x4/0x20 kernel/kcov.c:258 Code: 00 00 00 00 66 90 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 02 00 00 00 e9 4c ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 8b 0c 24 <89> f2 89 fe bf 04 00 00 00 e9 2e ff ff ff 66 66 2e 0f 1f 84 00 00 RSP: 0018:ffff88800d0cf628 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000000001fe RCX: ffffffff815700f0 RDX: ffff888048fc9a40 RSI: 00000000000000fa RDI: 00000000000001fe RBP: 00000000000000fa R08: 0000000000000001 R09: ffffea0000e48a77 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0000e48a00 R13: dffffc0000000000 R14: ffff88800dcaa7e0 R15: ffffea0000e48a40 release_pages+0x740/0xc20 mm/swap.c:879 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu+0xe9/0x6e0 mm/mmu_gather.c:247 zap_pte_range mm/memory.c:1355 [inline] zap_pmd_range mm/memory.c:1404 [inline] zap_pud_range mm/memory.c:1433 [inline] zap_p4d_range mm/memory.c:1454 [inline] unmap_page_range+0x17d9/0x1fe0 mm/memory.c:1475 unmap_single_vma+0x198/0x300 mm/memory.c:1520 unmap_vmas+0x16d/0x300 mm/memory.c:1552 exit_mmap+0x27f/0x4f0 mm/mmap.c:3253 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 exit_mm kernel/exit.c:536 [inline] do_exit+0xa96/0x2600 kernel/exit.c:847 do_group_exit+0x125/0x310 kernel/exit.c:982 get_signal+0x4bc/0x2350 kernel/signal.c:2762 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fba74f76c27 Code: Unable to access opcode bytes at RIP 0x7fba74f76bfd. RSP: 002b:00007fba724ecfa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fba74f76c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000180 RBP: 00007fba724ed040 R08: 0000000000000000 R09: 0000000000100000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000180 R14: 00007fba724ed000 R15: 0000000000000000 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), 4 bytes skipped: 0: e8 ae 57 5c 00 callq 0x5c57b3 5: e9 bf fd ff ff jmpq 0xfffffdc9 a: e8 a4 57 5c 00 callq 0x5c57b3 f: e9 8c fd ff ff jmpq 0xfffffda0 14: e8 9a 57 5c 00 callq 0x5c57b3 19: e9 44 fd ff ff jmpq 0xfffffd62 1e: cc int3 1f: cc int3 20: cc int3 21: cc int3 22: cc int3 23: 48 8b 07 mov (%rdi),%rax * 26: e9 88 d4 0f 03 jmpq 0x30fd4b3 <-- trapping instruction 2b: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 32: 00 33: 41 57 push %r15 35: 89 d0 mov %edx,%eax 37: 41 56 push %r14 39: 41 55 push %r13 3b: 41 rex.B