audit: type=1400 audit(1692012344.101:16): avc: denied { unlink } for pid=288 comm="syz-executor.4" name="file1" dev="sda" ino=16006 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:lvm_control_t:s0 tclass=file permissive=1 watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.1:4036] Modules linked in: irq event stamp: 2307371 hardirqs last enabled at (2307370): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (2307371): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (2283608): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (2283611): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4036 Comm: syz-executor.1 Not tainted 5.10.190 #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 4e c2 5b 00 e9 bf fd ff ff e8 44 c2 5b 00 e9 8c fd ff ff e8 3a c2 5b 00 e9 44 fd ff ff cc cc cc cc cc 48 8b 07 58 d6 0f 03 0f 1f 84 00 00 00 00 00 41 57 89 d0 41 56 41 55 41 RSP: 0018:ffff88806cf09598 EFLAGS: 00000283 RAX: ffff88800d804a00 RBX: ffff88806cf096e8 RCX: ffff88806cf096e8 RDX: dffffc0000000000 RSI: ffff88803d1979e8 RDI: ffff88803d1979e8 RBP: ffff88803d1979e8 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9e12c2 R12: ffff88806cf096a8 R13: ffff88803d190000 R14: 1ffff1100d9e12c2 R15: ffffffff859fc6c6 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdc0204a344 CR3: 000000000ece6000 CR4: 0000000000350ee0 Call Trace: deref_stack_reg+0xf2/0x160 arch/x86/kernel/unwind_orc.c:360 unwind_next_frame+0x1289/0x1a90 arch/x86/kernel/unwind_orc.c:589 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 skb_copy+0x137/0x2f0 net/core/skbuff.c:1521 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499 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: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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:196 Code: ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f 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 ec f7 c1 7e a9 00 01 ff 00 74 RSP: 0018:ffff88803d1976b0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888046e29f78 RCX: ffffffff8167448a RDX: 0000000000000000 RSI: ffffffff816743d9 RDI: 0000000000000001 RBP: ffffea00010be480 R08: 0000000000000000 R09: ffffea00010be487 R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000001ed R13: dffffc0000000000 R14: 00000000000001fe R15: 0000000000000000 free_pages_and_swap_cache+0x49/0x290 mm/swap_state.c:353 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:1093 [inline] mmput+0xca/0x340 kernel/fork.c:1114 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/0x22f0 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 syscall_exit_to_user_mode+0x38/0x1e0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xcc RIP: 0033:0x7f82145b7b19 Code: Unable to access opcode bytes at RIP 0x7f82145b7aef. RSP: 002b:00007f8211b2d188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000007 RBX: 00007f82146caf60 RCX: 00007f82145b7b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000140 RBP: 00007f8214611f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa6ef376f R14: 00007f8211b2d300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.190 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x122/0x8c0 kernel/locking/qspinlock.c:326 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 09 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 80 be f8 02 f3 90 73 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 RSP: 0018:ffff88806ce09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff879fafa0 RCX: ffffffff81278127 RDX: fffffbfff0f3f5f5 RSI: 0000000000000004 RDI: ffffffff879fafa0 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff879fafa3 R10: fffffbfff0f3f5f4 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f3f5f4 R14: 0000000000000001 R15: 1ffff1100d9c1348 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c9babe8678 CR3: 000000000ece6000 CR4: 0000000000350ef0 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:1450 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: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:default_idle+0xe/0x20 arch/x86/kernel/process.c:707 Code: 87 fd e9 4b ff ff ff 4c 89 e7 e8 cd 08 87 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 e9 07 00 00 00 0f 00 2d 84 1b 5d 00 fb f4 dd 1c 3b 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffffffff84e07e38 EFLAGS: 00000296 RAX: ffffffff83e52330 RBX: 0000000000000000 RCX: ffffffff83e3a3ec RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e52938 RBP: fffffbfff09c6450 R08: 0000000000000001 R09: ffff88806ce3c16b R10: ffffed100d9c782d R11: 0000000000000001 R12: 0000000000000000 R13: ffffffff85671588 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0xbf/0x2c0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3ad/0x520 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396 start_kernel+0x464/0x489 init/main.c:1044 secondary_startup_64_no_verify+0xc2/0xcb ---------------- Code disassembly (best guess), 4 bytes skipped: 0: e8 4e c2 5b 00 callq 0x5bc253 5: e9 bf fd ff ff jmpq 0xfffffdc9 a: e8 44 c2 5b 00 callq 0x5bc253 f: e9 8c fd ff ff jmpq 0xfffffda0 14: e8 3a c2 5b 00 callq 0x5bc253 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 58 d6 0f 03 jmpq 0x30fd683 <-- 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