FAT-fs (loop5): Unrecognized mount option "vcan0" or missing value watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:4014] Modules linked in: irq event stamp: 5135991 hardirqs last enabled at (5135990): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5135991): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5103242): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5103245): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4014 Comm: syz-executor.5 Not tainted 5.10.228 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_get_return_address arch/x86/kernel/unwind_orc.c:323 [inline] RIP: 0010:unwind_get_return_address+0x3b/0xa0 arch/x86/kernel/unwind_orc.c:318 Code: 03 53 48 89 fb 0f b6 04 02 84 c0 74 04 3c 03 7e 59 8b 03 85 c0 75 09 31 c0 5b 5d e9 ff cf 0f 03 48 b8 00 00 00 00 00 fc ff df <48> 8d 6b 48 48 89 ea 48 c1 ea 03 80 3c 02 00 75 36 48 8b 7b 48 e8 RSP: 0018:ffff88806cf09820 EFLAGS: 00000202 RAX: dffffc0000000000 RBX: ffff88806cf09838 RCX: ffffffff859b9f01 RDX: 1ffff1100d9e1307 RSI: 0000000000000001 RDI: ffff88806cf09838 RBP: ffff88806cf098c0 R08: 0000000000000005 R09: ffff888046507580 R10: 0000000000032042 R11: 1ffff1100d9e12f4 R12: ffff88806cf098f0 R13: 0000000000000000 R14: ffff88801bbb3480 R15: ffff8880483a2800 FS: 00007f5a1ed9b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555557a35708 CR3: 000000001d1b0000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x110/0x160 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1542 [inline] slab_free_freelist_hook+0xa9/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kfree+0xd7/0x340 mm/slub.c:4125 skb_free_head net/core/skbuff.c:605 [inline] skb_release_data+0x604/0x820 net/core/skbuff.c:625 skb_release_all net/core/skbuff.c:679 [inline] __kfree_skb net/core/skbuff.c:693 [inline] consume_skb net/core/skbuff.c:849 [inline] consume_skb+0x110/0x2b0 net/core/skbuff.c:843 mac80211_hwsim_tx_frame+0x15a/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1717 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:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __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:lock_acquire+0x1b9/0x470 kernel/locking/lockdep.c:5534 Code: 2b db 7e e8 39 91 ff ff b8 ff ff ff ff 48 83 c4 20 65 0f c1 05 b8 2b db 7e 83 f8 01 4c 8b 54 24 08 0f 85 48 02 00 00 41 52 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff8880465072f8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff11008ca0e61 RCX: 0000000048ad9967 RDX: 1ffff110037767b8 RSI: 4ba603207c9895dc RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8686a6e7 R10: 0000000000000246 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff84ff9960 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:303 [inline] rcu_read_lock include/linux/rcupdate.h:717 [inline] __is_insn_slot_addr+0x3f/0x290 kernel/kprobes.c:299 is_kprobe_insn_slot include/linux/kprobes.h:309 [inline] kernel_text_address kernel/extable.c:149 [inline] kernel_text_address+0xf2/0x120 kernel/extable.c:120 __kernel_text_address+0x9/0x40 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:323 [inline] unwind_get_return_address+0x55/0xa0 arch/x86/kernel/unwind_orc.c:318 arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26 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 kmalloc_array include/linux/slab.h:592 [inline] kcalloc include/linux/slab.h:603 [inline] ext4_find_extent+0xa77/0xd70 fs/ext4/extents.c:906 ext4_swap_extents+0x361/0x14c0 fs/ext4/extents.c:5695 move_extent_per_page fs/ext4/move_extent.c:338 [inline] ext4_move_extents+0x2559/0x3050 fs/ext4/move_extent.c:673 __ext4_ioctl+0x302e/0x4190 fs/ext4/ioctl.c:999 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f5a21825b19 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:00007f5a1ed9b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5a21938f60 RCX: 00007f5a21825b19 RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 00007f5a2187ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc0d50869f R14: 00007f5a1ed9b300 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: 03 53 48 add 0x48(%rbx),%edx 3: 89 fb mov %edi,%ebx 5: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 9: 84 c0 test %al,%al b: 74 04 je 0x11 d: 3c 03 cmp $0x3,%al f: 7e 59 jle 0x6a 11: 8b 03 mov (%rbx),%eax 13: 85 c0 test %eax,%eax 15: 75 09 jne 0x20 17: 31 c0 xor %eax,%eax 19: 5b pop %rbx 1a: 5d pop %rbp 1b: e9 ff cf 0f 03 jmpq 0x30fd01f 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 8d 6b 48 lea 0x48(%rbx),%rbp <-- trapping instruction 2e: 48 89 ea mov %rbp,%rdx 31: 48 c1 ea 03 shr $0x3,%rdx 35: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 39: 75 36 jne 0x71 3b: 48 8b 7b 48 mov 0x48(%rbx),%rdi 3f: e8 .byte 0xe8