FAT-fs (loop6): bogus number of reserved sectors FAT-fs (loop6): Can't find a valid FAT filesystem FAT-fs (loop5): bogus number of reserved sectors FAT-fs (loop5): Can't find a valid FAT filesystem watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:4749] Modules linked in: irq event stamp: 9759043 hardirqs last enabled at (9759042): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (9759043): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (9744670): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (9744673): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4749 Comm: syz-executor.7 Not tainted 5.10.224 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xcad/0x1a90 arch/x86/kernel/unwind_orc.c:582 Code: 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 48 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 8e 0b 00 00 4c 89 fa 4c 89 c6 41 c6 45 35 00 <48> b8 00 00 00 00 00 fc ff df 48 c1 ee 03 48 c1 ea 03 0f b6 14 02 RSP: 0018:ffff88806ce095d0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff85d143ba RDX: ffffffff85d143be RSI: ffffffff85d143bf RDI: ffff88806ce09700 RBP: ffff88806ce096dd R08: ffffffff85d143bf R09: ffff88806ce09de8 R10: 0000000000032042 R11: 1ffff1100d9c12c2 R12: ffff88806ce09de8 R13: ffff88806ce096a8 R14: 1ffff1100d9c12c2 R15: ffffffff85d143be FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000716000 CR3: 000000000d672000 CR4: 0000000000350ef0 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:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 skb_copy+0x183/0x350 net/core/skbuff.c:1529 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: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:__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:ffff888048367628 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000000001fe RCX: ffffffff8156d8f0 RDX: ffff88801de58000 RSI: 0000000000000014 RDI: 00000000000001fe RBP: 0000000000000014 R08: 0000000000000001 R09: ffffea00010285b7 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0001028500 R13: dffffc0000000000 R14: ffff8880197760b0 R15: ffffea0001028580 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:3235 __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:2759 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: 0033:0x7f8be9e36b19 Code: Unable to access opcode bytes at RIP 0x7f8be9e36aef. RSP: 002b:00007f8be738b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000001000 RBX: 00007f8be9f4a020 RCX: 00007f8be9e36b19 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007 RBP: 00007f8be9e90f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffdcfb3c5f R14: 00007f8be738b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4732 Comm: syz-executor.0 Not tainted 5.10.224 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 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 cc c9 c1 7e a9 00 01 ff 00 74 RSP: 0018:ffff88806cf09388 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81010a22 RDX: 0000000000000000 RSI: ffffffff81010a34 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff868686e7 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88806cf094a4 R14: ffff88806cf09978 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000717000 CR3: 000000000d672000 CR4: 0000000000350ee0 Call Trace: perf_misc_flags+0x124/0x240 arch/x86/events/core.c:2761 perf_prepare_sample+0x177/0x1be0 kernel/events/core.c:7239 __perf_event_output kernel/events/core.c:7408 [inline] perf_event_output_forward+0xdb/0x2c0 kernel/events/core.c:7428 __perf_event_overflow+0x213/0x5e0 kernel/events/core.c:9084 perf_swevent_hrtimer+0x37e/0x3f0 kernel/events/core.c:10487 __run_hrtimer kernel/time/hrtimer.c:1584 [inline] __hrtimer_run_queues+0x1ca/0xb40 kernel/time/hrtimer.c:1648 hrtimer_interrupt+0x2fd/0x9b0 kernel/time/hrtimer.c:1710 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline] __sysvec_apic_timer_interrupt+0xfb/0x310 arch/x86/kernel/apic/apic.c:1100 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline] sysvec_apic_timer_interrupt+0x3e/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_memory_region+0x177/0x1f0 mm/kasan/generic.c:193 Code: d2 75 0b 48 89 da 48 29 c2 e9 20 ff ff ff 48 89 d0 49 39 c2 75 92 49 0f be 02 41 83 e1 07 49 39 c1 7d 85 41 bb 01 00 00 00 5b <5d> 44 89 d8 41 5c e9 fe aa b3 02 48 85 d2 74 e9 48 01 ea eb 09 48 RSP: 0018:ffff88806cf09a20 EFLAGS: 00000246 RAX: fffffbfff0f40831 RBX: ffffffff87a04180 RCX: ffffffff81279b37 RDX: fffffbfff0f40831 RSI: 0000000000000004 RDI: ffffffff87a04180 RBP: fffffbfff0f40830 R08: 0000000000000000 R09: ffffffff87a04183 R10: fffffbfff0f40830 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f40830 R14: 0000000000000001 R15: 1ffff1100d9e1348 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/asm-generic/atomic-instrumented.h:27 [inline] virt_spin_lock arch/x86/include/asm/qspinlock.h:99 [inline] queued_spin_lock_slowpath+0xa7/0x8c0 kernel/locking/qspinlock.c:326 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: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:__schedule+0x1/0x1ea0 kernel/sched/core.c:4428 Code: 39 00 e8 e2 1f 86 fd eb d5 e8 db 1f 86 fd e9 49 ff ff ff e8 81 1f 86 fd e9 02 ff ff ff e8 a7 1f 86 fd e9 6a ff ff ff 66 90 55 <48> 89 e5 41 57 41 56 48 8d 85 78 ff ff ff 49 c7 c6 c0 b2 03 00 41 RSP: 0018:ffff88801dd27738 EFLAGS: 00000202 RAX: dffffc0000000000 RBX: ffff888017314ec0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000001 RBP: ffffed1002e629d8 R08: 0000000000000000 R09: ffff88801d11e423 R10: 00007ff05e21d000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800fc5ae00 R14: dffffc0000000000 R15: 00007ff05e274000 preempt_schedule_common kernel/sched/core.c:4704 [inline] _cond_resched+0x49/0x80 kernel/sched/core.c:6127 zap_pte_range mm/memory.c:1359 [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+0x12ca/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: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:2759 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: 0033:0x7ff05e8fcb19 Code: Unable to access opcode bytes at RIP 0x7ff05e8fcaef. RSP: 002b:00007ff05be72188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000001000 RBX: 00007ff05ea0ff60 RCX: 00007ff05e8fcb19 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00007ff05e956f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe618b2b2f R14: 00007ff05be72300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: 48 c1 ea 03 shr $0x3,%rdx 4: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 8: 48 89 ea mov %rbp,%rdx b: 83 e2 07 and $0x7,%edx e: 38 d0 cmp %dl,%al 10: 7f 08 jg 0x1a 12: 84 c0 test %al,%al 14: 0f 85 8e 0b 00 00 jne 0xba8 1a: 4c 89 fa mov %r15,%rdx 1d: 4c 89 c6 mov %r8,%rsi 20: 41 c6 45 35 00 movb $0x0,0x35(%r13) * 25: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 2c: fc ff df 2f: 48 c1 ee 03 shr $0x3,%rsi 33: 48 c1 ea 03 shr $0x3,%rdx 37: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx