netlink: 'syz-executor.0': attribute type 2 has an invalid length. Bluetooth: hci3: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.7:5713] Modules linked in: irq event stamp: 28606913 hardirqs last enabled at (28606912): [] asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:661 hardirqs last disabled at (28606913): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (28561278): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (28561295): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5713 Comm: syz-executor.7 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xc9a/0x1a90 arch/x86/kernel/unwind_orc.c:545 Code: 0b 00 00 48 89 ea 49 c7 45 58 00 00 00 00 48 b8 00 00 00 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 RSP: 0018:ffff88806ce09878 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff85bf75d0 RDX: 0000000000000005 RSI: ffff88806ce09cf0 RDI: ffff88806ce099a8 RBP: ffff88806ce09985 R08: ffffffff85bf75d5 R09: ffff88806ce09cf8 R10: 0000000000032042 R11: 1ffff1100d9c1317 R12: ffff88806ce09cf8 R13: ffff88806ce09950 R14: 1ffff1100d9c1317 R15: ffffffff85bf75d4 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000696000 CR3: 000000001e374000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 __save_stack_trace mm/kmemleak.c:563 [inline] create_object.isra.0+0x372/0xa20 mm/kmemleak.c:618 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] kmem_cache_alloc_node+0x169/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:200 skb_copy+0x183/0x350 net/core/skbuff.c:1530 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb50/0x1410 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:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:rcu_read_unlock include/linux/rcupdate.h:767 [inline] RIP: 0010:mod_objcg_state mm/slab.h:314 [inline] RIP: 0010:memcg_slab_free_hook mm/slab.h:383 [inline] RIP: 0010:memcg_slab_free_hook mm/slab.h:351 [inline] RIP: 0010:do_slab_free mm/slub.c:3105 [inline] RIP: 0010:___cache_free+0x1aa/0x360 mm/slub.c:3156 Code: af 80 00 00 00 0f 85 c3 00 00 00 9c 41 5d fa 41 f7 c5 00 02 00 00 0f 85 5d 01 00 00 44 89 fa 44 89 f6 e8 09 11 02 00 41 55 9d 11 ff 7a 02 85 c0 0f 85 f7 00 00 00 65 ff 0d 32 e1 95 7e e8 9d RSP: 0018:ffff88800ce9f588 EFLAGS: 00000246 RAX: 0000000001b3cf8d RBX: ffff88801db3b480 RCX: 1ffffffff0d159ba RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816c8f68 RBP: ffff88800cf07900 R08: 0000000000000001 R09: ffffffff8686c74f R10: fffffbfff0d0d8e9 R11: 0000000000000001 R12: ffff8880083ffdc0 R13: 0000000000000246 R14: 0000000000000005 R15: 00000000fffffab8 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 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] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc_trace+0x151/0x320 mm/slub.c:2921 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] kobject_uevent_env+0x22b/0xfd0 lib/kobject_uevent.c:539 device_del+0xa8f/0x1180 drivers/base/core.c:3200 device_unregister+0x11/0x30 drivers/base/core.c:3223 hci_conn_del_sysfs+0x9e/0xd0 net/bluetooth/hci_sysfs.c:77 hci_conn_cleanup+0x2c6/0x5d0 net/bluetooth/hci_conn.c:140 hci_conn_del+0x23e/0x650 net/bluetooth/hci_conn.c:645 hci_conn_hash_flush+0x191/0x230 net/bluetooth/hci_conn.c:1572 hci_dev_do_close+0x719/0x1240 net/bluetooth/hci_core.c:1784 hci_unregister_dev+0x179/0x460 net/bluetooth/hci_core.c:3854 vhci_release+0x70/0xf0 drivers/bluetooth/hci_vhci.c:345 __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:2762 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: 0033:0x7fa62dcde3f5 Code: Unable to access opcode bytes at RIP 0x7fa62dcde3cb. RSP: 002b:00007fa62b2ad1a0 EFLAGS: 00000202 RAX: 00007fa62daaf000 RBX: 0000000000000004 RCX: 00007fa62dda0354 RDX: 0000000000030552 RSI: 0000000000000000 RDI: 00007fa62dd90eda RBP: 00007fa62dd91f6d R08: 0000000000000125 R09: 00007ffc465ca080 R10: 00007ffc465ca090 R11: 00000000000857b6 R12: 0000000000000000 R13: 00007ffc4642148f R14: 00007fa62b2ad300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.237 #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 b0 93 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:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff87a08080 RCX: ffffffff8127ab97 RDX: fffffbfff0f41011 RSI: 0000000000000004 RDI: ffffffff87a08080 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87a08083 R10: fffffbfff0f41010 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f41010 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000695000 CR3: 000000001e374000 CR4: 0000000000350ee0 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+0x6c8/0x1410 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:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:default_idle+0xe/0x20 arch/x86/kernel/process.c:712 Code: 4e ff ff ff 4c 89 e7 e8 40 af 83 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 e9 07 00 00 00 0f 00 2d 24 2c 59 00 fb f4 1d 2c 37 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffff888008987e70 EFLAGS: 00000202 RAX: ffffffff83e91390 RBX: 0000000000000001 RCX: ffffffff83e78f2c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e91998 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf3c12b R10: ffffed100d9e7825 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff85678748 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+0x3b3/0x520 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:402 secondary_startup_64_no_verify+0xbe/0xcb ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: 48 89 ea mov %rbp,%rdx 5: 49 c7 45 58 00 00 00 movq $0x0,0x58(%r13) c: 00 d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 14: fc ff df 17: 48 c1 ea 03 shr $0x3,%rdx 1b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 1f: 48 89 ea mov %rbp,%rdx 22: 83 e2 07 and $0x7,%edx 25: 38 d0 cmp %dl,%al 27: 7f 08 jg 0x31 * 29: 84 c0 test %al,%al <-- trapping instruction 2b: 0f 85 8e 0b 00 00 jne 0xbbf 31: 4c 89 fa mov %r15,%rdx 34: 4c 89 c6 mov %r8,%rsi 37: 41 c6 45 35 00 movb $0x0,0x35(%r13) 3c: 48 rex.W 3d: b8 .byte 0xb8