tmpfs: Unknown parameter 'ÿÿ00000000000000000000005' tmpfs: Unknown parameter 'ÿÿ00000000000000000000005' EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:6716] Modules linked in: irq event stamp: 11904739 hardirqs last enabled at (11904738): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (11904739): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (11848530): [] spin_unlock_bh include/linux/spinlock.h:399 [inline] softirqs last enabled at (11848530): [] addrconf_ifdown.isra.0+0x50c/0x15f0 net/ipv6/addrconf.c:3809 softirqs last disabled at (11848531): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 6716 Comm: syz-executor.0 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:45 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline] RIP: 0010:deref_stack_reg+0x56/0x160 arch/x86/kernel/unwind_orc.c:357 Code: 3c 03 0f 8e df 00 00 00 41 8b 04 24 85 c0 74 62 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 08 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 cb 00 00 00 49 8d 7c 24 10 4d 8b 6c 24 08 48 b8 00 00 00 00 RSP: 0018:ffff88806ce09630 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce09780 RCX: ffffffff85d147da RDX: 1ffff1100d9c12e8 RSI: ffff88806ce09e10 RDI: ffff88806ce09740 RBP: ffff88806ce09e10 R08: ffffffff85d147df R09: ffff88806ce09e18 R10: 0000000000032042 R11: 1ffff1100d9c12d4 R12: ffff88806ce09738 R13: ffff88806ce09738 R14: 1ffff1100d9c12d4 R15: ffffffff85d147de FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c8381567d0 CR3: 000000000dc70000 CR4: 0000000000350ef0 Call Trace: 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:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:447 netdev_alloc_skb include/linux/skbuff.h:2857 [inline] dev_alloc_skb include/linux/skbuff.h:2870 [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: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 do_softirq kernel/softirq.c:343 [inline] do_softirq+0x91/0xc0 kernel/softirq.c:330 __local_bh_enable_ip+0xd7/0x100 kernel/softirq.c:195 spin_unlock_bh include/linux/spinlock.h:399 [inline] addrconf_ifdown.isra.0+0x50c/0x15f0 net/ipv6/addrconf.c:3809 addrconf_notify+0x159/0x2410 net/ipv6/addrconf.c:3678 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xb3/0x110 kernel/notifier.c:410 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2047 call_netdevice_notifiers_extack net/core/dev.c:2059 [inline] call_netdevice_notifiers net/core/dev.c:2073 [inline] dev_close_many+0x25b/0x460 net/core/dev.c:1648 unregister_netdevice_many+0x349/0x1490 net/core/dev.c:10709 unregister_netdevice_queue+0x201/0x2c0 net/core/dev.c:10666 unregister_netdevice include/linux/netdevice.h:2891 [inline] __tun_detach+0xfc1/0x12b0 drivers/net/tun.c:697 tun_detach drivers/net/tun.c:713 [inline] tun_chr_close+0xc4/0x250 drivers/net/tun.c:3486 __fput+0x285/0x9f0 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:185 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xb6f/0x2600 kernel/exit.c:860 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: 0033:0x7fa6ebdc2b19 Code: Unable to access opcode bytes at RIP 0x7fa6ebdc2aef. RSP: 002b:00007fa6e9338188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000004 RBX: 00007fa6ebed5f60 RCX: 00007fa6ebdc2b19 RDX: 0000000000105142 RSI: 00000000200002c0 RDI: ffffffffffffff9c RBP: 00007fa6ebe1cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe48785af R14: 00007fa6e9338300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1 Comm: systemd Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:46 [inline] RIP: 0010:unwind_next_frame+0x134e/0x1a90 arch/x86/kernel/unwind_orc.c:606 Code: 8d 7d 08 49 8b 5d 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 8c 04 00 00 49 8d 7d 10 49 8b 6d 08 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffff8880088c77a0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff8880088c7e68 RCX: 1ffff11001118f17 RDX: 1ffff11001118f10 RSI: ffff8880088c7e58 RDI: ffff8880088c7888 RBP: ffff8880088c0000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff11001118efc R12: ffff8880088c7e68 R13: ffff8880088c7878 R14: 1ffff11001118efc R15: ffffffff85a26cee FS: 00007f5634959900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556f34704660 CR3: 000000000ee0a000 CR4: 0000000000350ee0 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+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 simple_xattrs_free include/linux/xattr.h:101 [inline] kernfs_put.part.0+0x1ef/0x540 fs/kernfs/dir.c:539 kernfs_put+0x42/0x50 fs/kernfs/dir.c:519 evict+0x32b/0x8c0 fs/inode.c:612 iput_final fs/inode.c:1732 [inline] iput.part.0+0x4b9/0x6d0 fs/inode.c:1758 iput+0x58/0x70 fs/inode.c:1748 fsnotify_put_inode_ref fs/notify/mark.c:246 [inline] fsnotify_drop_object+0x4f/0xb0 fs/notify/mark.c:316 fsnotify_put_mark+0x3e0/0x550 fs/notify/mark.c:351 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:807 [inline] __se_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:781 [inline] __x64_sys_inotify_rm_watch+0x11d/0x190 fs/notify/inotify/inotify_user.c:781 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f5635136987 Code: 73 01 c3 48 8b 0d 09 f5 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 ff 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d9 f4 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffc89c60ce8 EFLAGS: 00000206 ORIG_RAX: 00000000000000ff RAX: ffffffffffffffda RBX: 0000556f346bd0f0 RCX: 00007f5635136987 RDX: 000000000000003c RSI: 000000000000005a RDI: 0000000000000007 RBP: 0000000000000059 R08: 00007f56355b1000 R09: 0000000000000004 R10: 0000000000000010 R11: 0000000000000206 R12: 0000556f3464a230 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 Bluetooth: hci0: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 3c 03 cmp $0x3,%al 2: 0f 8e df 00 00 00 jle 0xe7 8: 41 8b 04 24 mov (%r12),%eax c: 85 c0 test %eax,%eax e: 74 62 je 0x72 10: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 17: fc ff df 1a: 49 8d 7c 24 08 lea 0x8(%r12),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 cb 00 00 00 jne 0xfb <-- trapping instruction 30: 49 8d 7c 24 10 lea 0x10(%r12),%rdi 35: 4d 8b 6c 24 08 mov 0x8(%r12),%r13 3a: 48 rex.W 3b: b8 00 00 00 00 mov $0x0,%eax