SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=3983 comm=syz-executor.3 watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:3899] Modules linked in: irq event stamp: 4789039 hardirqs last enabled at (4789038): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (4789039): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (4772328): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4772331): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 3899 Comm: syz-executor.6 Not tainted 5.10.217 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_release+0x3b4/0x680 kernel/locking/lockdep.c:5574 Code: 44 24 40 45 39 87 40 09 00 00 0f 85 a6 01 00 00 b8 ff ff ff ff 65 0f c1 05 69 4e db 7e 83 f8 01 0f 85 30 01 00 00 ff 34 24 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c5 48 c7 45 00 00 00 00 00 c7 RSP: 0018:ffff88806ce09a38 EFLAGS: 00000246 RAX: 0000000000000001 RBX: e021e1a7050cd91b RCX: ffff88806ce09a88 RDX: 1ffff11002e9f127 RSI: 0000000000000000 RDI: ffff8880174f8938 RBP: 1ffff1100d9c1349 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000003 R14: ffff8880174f8940 R15: ffff8880174f8000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f36d3fb6998 CR3: 000000004770c000 CR4: 0000000000350ef0 Call Trace: mac80211_hwsim_addr_match+0x128/0x180 drivers/net/wireless/mac80211_hwsim.c:1066 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb43/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1504 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:1584 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1648 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1665 __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:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x14/0x60 kernel/kcov.c:197 Code: bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 cd fd ff ff 90 48 8b 34 24 65 48 8b 14 25 80 6f 02 00 65 8b 05 1c c8 c1 7e 00 01 ff 00 74 0f f6 c4 01 74 35 8b 82 fc 13 00 00 85 c0 74 2b RSP: 0018:ffff888049887638 EFLAGS: 00000292 RAX: 0000000000000000 RBX: 00000000000001fe RCX: ffffffff8156d670 RDX: ffff8880174f8000 RSI: ffffffff8156cffc RDI: 0000000000000004 RBP: 00000000000000ad R08: 0000000000000001 R09: ffffea000104f3f7 R10: 00000000000001fe R11: 0000000000000001 R12: ffffea000104f300 R13: dffffc0000000000 R14: ffff888017c37580 R15: ffffea000104f400 compound_head include/linux/page-flags.h:185 [inline] release_pages+0xcc/0xc20 mm/swap.c:892 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:3235 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 exit_mm kernel/exit.c:534 [inline] do_exit+0xa96/0x2600 kernel/exit.c:845 do_group_exit+0x125/0x310 kernel/exit.c:980 get_signal+0x4bc/0x22e0 kernel/signal.c:2751 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 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:287 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0033:0x7f464b2d4b19 Code: Unable to access opcode bytes at RIP 0x7f464b2d4aef. RSP: 002b:00007f464884a218 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007f464b3e7f68 RCX: 00007f464b2d4b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f464b3e7f6c RBP: 00007f464b3e7f60 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f464b3e7f6c R13: 00007ffdd66d7b5f R14: 00007f464884a300 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:706 ---------------- Code disassembly (best guess): 0: 44 24 40 rex.R and $0x40,%al 3: 45 39 87 40 09 00 00 cmp %r8d,0x940(%r15) a: 0f 85 a6 01 00 00 jne 0x1b6 10: b8 ff ff ff ff mov $0xffffffff,%eax 15: 65 0f c1 05 69 4e db xadd %eax,%gs:0x7edb4e69(%rip) # 0x7edb4e86 1c: 7e 1d: 83 f8 01 cmp $0x1,%eax 20: 0f 85 30 01 00 00 jne 0x156 26: ff 34 24 pushq (%rsp) 29: 9d popfq * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c5 add %rax,%rbp 37: 48 c7 45 00 00 00 00 movq $0x0,0x0(%rbp) 3e: 00 3f: c7 .byte 0xc7