Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:4196] Modules linked in: irq event stamp: 7582459 hardirqs last enabled at (7582458): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (7582459): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (7477158): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (7477161): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4196 Comm: syz-executor.3 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x1232/0x1a90 arch/x86/kernel/unwind_orc.c:589 Code: 24 20 e9 06 fe ff ff 4c 8b 64 24 60 48 8d 79 02 49 8d 55 40 48 be 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 44 0f b6 04 30 <48> 8d 41 03 49 89 c1 49 c1 e9 03 41 0f b6 34 31 49 89 f9 41 83 e1 RSP: 0018:ffff88806ce09760 EFLAGS: 00000212 RAX: 1ffffffff0ba7b5b RBX: 0000000000000001 RCX: ffffffff85d3dad8 RDX: ffff88806ce09878 RSI: dffffc0000000000 RDI: ffffffff85d3dada RBP: ffff88806ce0986d R08: 0000000000000000 R09: ffff888047fa7838 R10: 0000000000032042 R11: 1ffff1100d9c12f4 R12: ffff888047fa7838 R13: ffff88806ce09838 R14: 1ffff1100d9c12f4 R15: ffffffff85d3dadc FS: 00007f5dc9ed1700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e252c0718 CR3: 00000000467f0000 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+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:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:169 [inline] RIP: 0010:unwind_next_frame+0x227/0x1a90 arch/x86/kernel/unwind_orc.c:448 Code: c1 e8 03 45 0f b6 04 10 48 89 fa 83 e2 07 83 c2 03 44 38 c2 7c 09 45 84 c0 0f 85 67 12 00 00 44 8d 46 01 8b 0c 8d 08 9b d6 85 <48> ba 00 00 00 00 00 fc ff df 4a 8d 3c 85 08 9b d6 85 49 89 f9 49 RSP: 0018:ffff888047fa78e0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00000000000344f7 RDX: 0000000000000007 RSI: 000000000000ceb7 RDI: ffffffff85d9d5e4 RBP: ffff888047fa79ed R08: 000000000000ceb8 R09: ffff888047fa7d58 R10: 0000000000032042 R11: 1ffff11008ff4f24 R12: ffff888047fa7a00 R13: ffff888047fa79b8 R14: 1ffff11008ff4f24 R15: ffffffff81ceb7cd 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] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc_trace+0x151/0x320 mm/slub.c:2921 kmalloc include/linux/slab.h:552 [inline] __memcg_init_list_lru_node+0x7f/0x1e0 mm/list_lru.c:339 memcg_init_list_lru_node mm/list_lru.c:362 [inline] memcg_init_list_lru mm/list_lru.c:448 [inline] __list_lru_init+0x44d/0x890 mm/list_lru.c:615 alloc_super+0x8e2/0xa90 fs/super.c:274 sget_fc+0x110/0x860 fs/super.c:542 vfs_get_super fs/super.c:1207 [inline] get_tree_nodev+0x24/0x1d0 fs/super.c:1242 mqueue_get_tree+0xf2/0x130 ipc/mqueue.c:434 vfs_get_tree+0x8e/0x300 fs/super.c:1570 fc_mount+0x13/0xc0 fs/namespace.c:978 mq_create_mount ipc/mqueue.c:484 [inline] mq_init_ns+0x39e/0x530 ipc/mqueue.c:1700 create_ipc_ns ipc/namespace.c:58 [inline] copy_ipcs+0x2f5/0x480 ipc/namespace.c:84 create_new_namespaces+0x210/0xb20 kernel/nsproxy.c:90 unshare_nsproxy_namespaces+0xbd/0x1f0 kernel/nsproxy.c:231 ksys_unshare+0x449/0x8a0 kernel/fork.c:3003 __do_sys_unshare kernel/fork.c:3071 [inline] __se_sys_unshare kernel/fork.c:3069 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3069 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f5dcc95bb19 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:00007f5dc9ed1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f5dcca6ef60 RCX: 00007f5dcc95bb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048020200 RBP: 00007f5dcc9b5f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbab01c0f R14: 00007f5dc9ed1300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4241 Comm: syz-executor.1 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x4/0x20 kernel/kcov.c:290 Code: 00 00 00 00 00 90 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 ae fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 8c fe ff ff 66 66 2e 0f 1f 84 RSP: 0018:ffff888047f87720 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81641e7b RDX: 1ffffd40001b4bd1 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffea0000da5e80 R08: 0000000000000001 R09: ffffea0000da5eb3 R10: 0000000000000000 R11: 0000000000000001 R12: dead000000000100 R13: ffffea0000da5e88 R14: ffffea0000da5e80 R15: dead000000000100 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557912054b10 CR3: 000000000f7b2000 CR4: 0000000000350ee0 Call Trace: compound_head include/linux/page-flags.h:187 [inline] __mod_lruvec_page_state include/linux/memcontrol.h:837 [inline] page_remove_file_rmap mm/rmap.c:1269 [inline] page_remove_rmap+0x3db/0x7c0 mm/rmap.c:1331 zap_pte_range mm/memory.c:1287 [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+0x110f/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: 0033:0x7fc463a4bb19 Code: Unable to access opcode bytes at RIP 0x7fc463a4baef. RSP: 002b:00007fc460fc1188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed RAX: 0000000000000000 RBX: 00007fc463b5ef60 RCX: 00007fc463a4bb19 RDX: 0000000000004000 RSI: 0000000000003000 RDI: 0000000020ffd000 RBP: 00007fc463aa5f6d R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5fb28b7f R14: 00007fc460fc1300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 24 20 and $0x20,%al 2: e9 06 fe ff ff jmpq 0xfffffe0d 7: 4c 8b 64 24 60 mov 0x60(%rsp),%r12 c: 48 8d 79 02 lea 0x2(%rcx),%rdi 10: 49 8d 55 40 lea 0x40(%r13),%rdx 14: 48 be 00 00 00 00 00 movabs $0xdffffc0000000000,%rsi 1b: fc ff df 1e: 48 89 f8 mov %rdi,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 44 0f b6 04 30 movzbl (%rax,%rsi,1),%r8d * 2a: 48 8d 41 03 lea 0x3(%rcx),%rax <-- trapping instruction 2e: 49 89 c1 mov %rax,%r9 31: 49 c1 e9 03 shr $0x3,%r9 35: 41 0f b6 34 31 movzbl (%r9,%rsi,1),%esi 3a: 49 89 f9 mov %rdi,%r9 3d: 41 rex.B 3e: 83 .byte 0x83 3f: e1 .byte 0xe1