Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.2:5534] Modules linked in: irq event stamp: 2774781 hardirqs last enabled at (2774780): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2774781): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2773998): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2774001): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 5534 Comm: syz-executor.2 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0x9d/0x1d0 Code: 03 80 3c 02 00 0f 85 17 01 00 00 48 8b 43 10 49 39 ed 77 1a 48 39 e8 76 15 4a 8d 54 25 00 48 39 d0 0f 93 c0 49 39 d5 0f 92 c2 <20> d0 75 38 48 8d 7b 28 48 8d 4b 20 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffff88806ce09650 EFLAGS: 00000287 RAX: ffff88806ce0a001 RBX: ffff88806ce096f8 RCX: 0000000000000002 RDX: ffff88806ce09c01 RSI: ffff88806ce09c58 RDI: ffff88806ce09708 RBP: ffff88806ce09c58 R08: ffffffff86b4d448 R09: ffff88806ce09738 R10: 000000000003c001 R11: 00000000000a71fa R12: 0000000000000008 R13: ffff88806ce02000 R14: ffff88806ce09c60 R15: ffff88806ce096f8 FS: 00007fefa5563700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555816bb708 CR3: 000000000d744000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xa5c/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node_noprof+0x14c/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 ndisc_alloc_skb+0x133/0x330 ndisc_send_rs+0x223/0x540 addrconf_rs_timer+0x2e7/0x7a0 call_timer_fn+0x198/0x5c0 __run_timer_base.part.0+0x688/0x950 run_timer_softirq+0xff/0x1e0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 Code: 7e 60 e8 a3 ff ff ff 31 c0 e9 ac ff 33 03 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 34 24 65 48 8b 15 60 cd b1 7e 65 8b 05 61 cd b1 RSP: 0018:ffff888012f4f760 EFLAGS: 00000202 RAX: ffffffff821544e3 RBX: 0000000000000001 RCX: ffffffff82154504 RDX: ffff88803e71d280 RSI: 0000000000000000 RDI: 0000000000000005 RBP: ffff888012f4f9b8 R08: 0000000000000000 R09: fffffbfff0fdc5e4 R10: 0000000000000001 R11: 00000000000c33ea R12: ffff88800ebe4cc0 R13: ffff88800ebe4cc0 R14: dffffc0000000000 R15: 0000000000000000 blk_mq_flush_plug_list+0x980/0x1d00 __blk_flush_plug+0x25d/0x460 blk_finish_plug+0x53/0xa0 __flush_batch+0x142/0x2e0 jbd2_log_do_checkpoint+0x7de/0xaf0 jbd2_journal_flush+0x1a6/0xc30 __ext4_ioctl+0xa19/0x3b10 __x64_sys_ioctl+0x1a0/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fefa7fedb19 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:00007fefa5563188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fefa8100f60 RCX: 00007fefa7fedb19 RDX: 0000000020000340 RSI: 000000004004662b RDI: 0000000000000007 RBP: 00007fefa8047f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb8d7541f R14: 00007fefa5563300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 323 Comm: kworker/u10:5 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events_unbound kfree_rcu_work RIP: 0010:__kernel_text_address+0x32/0x40 Code: e8 23 ff ff ff 85 c0 75 1b 48 81 fb 00 50 d5 86 72 0c 31 c0 48 81 fb ba 4b eb 86 0f 92 c0 5b e9 14 e6 63 03 b8 01 00 00 00 5b 09 e6 63 03 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffff888016937728 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff888016937748 RCX: ffffffff86839201 RDX: 1ffff11002d26ef4 RSI: 0000000000000000 RDI: ffffffff818baf2c RBP: ffff8880169377a0 R08: ffffffff86839270 R09: ffff888016937788 R10: 000000000003c001 R11: 0000000000023c4f R12: ffff888016937810 R13: 0000000000000000 R14: ffff88800aef9b80 R15: ffff888008c41280 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00068d000 CR3: 000000000d536000 CR4: 0000000000350ef0 Call Trace: unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 __kasan_record_aux_stack+0x8c/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 kmem_cache_free_bulk.part.0+0x31b/0x5f0 kvfree_rcu_bulk+0x33d/0x820 kfree_rcu_work+0x2c2/0x590 process_one_work+0x8ee/0x1a00 worker_thread+0x674/0xe70 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 loop1: detected capacity change from 0 to 39 9pnet_fd: Insufficient options for proto=fd syz-executor.3 uses obsolete (PF_INET,SOCK_PACKET) loop6: detected capacity change from 0 to 10 loop7: detected capacity change from 0 to 39 ---------------- Code disassembly (best guess): 0: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax 6: 85 17 test %edx,(%rdi) 8: 01 00 add %eax,(%rax) a: 00 48 8b add %cl,-0x75(%rax) d: 43 10 49 39 rex.XB adc %cl,0x39(%r9) 11: ed in (%dx),%eax 12: 77 1a ja 0x2e 14: 48 39 e8 cmp %rbp,%rax 17: 76 15 jbe 0x2e 19: 4a 8d 54 25 00 lea 0x0(%rbp,%r12,1),%rdx 1e: 48 39 d0 cmp %rdx,%rax 21: 0f 93 c0 setae %al 24: 49 39 d5 cmp %rdx,%r13 27: 0f 92 c2 setb %dl * 2a: 20 d0 and %dl,%al <-- trapping instruction 2c: 75 38 jne 0x66 2e: 48 8d 7b 28 lea 0x28(%rbx),%rdi 32: 48 8d 4b 20 lea 0x20(%rbx),%rcx 36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3d: fc ff df