Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor:4276] Modules linked in: irq event stamp: 12554216 hardirqs last enabled at (12554215): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (12554216): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (7185666): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (7185605): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4276 Comm: syz-executor Not tainted 5.10.232 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 38 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 7a 40 3f fd 48 89 ef e8 d2 fa 3f fd f6 c7 02 75 10 53 9d <65> ff 0d 84 69 1a 7c 5b 5d e9 fd 39 38 00 e8 88 20 5f fd eb e9 66 RSP: 0018:ffff8880499b7b68 EFLAGS: 00000246 RAX: 0000000000bf8e2b RBX: 0000000000000246 RCX: 1ffffffff0d11422 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e805c8 RBP: ffff88801d3b6510 R08: 0000000000000001 R09: ffffffff8686a737 R10: fffffbfff0d0d4e6 R11: 0000000000000001 R12: 0000000000000246 R13: ffff8880177d9a68 R14: 0000000000000000 R15: ffffffff844e59c0 FS: 0000555557694400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000049a2e000 CR4: 0000000000350ef0 Call Trace: kmemleak_seq_show+0x105/0x140 mm/kmemleak.c:1695 traverse.part.0+0xd7/0x620 fs/seq_file.c:111 traverse fs/seq_file.c:101 [inline] seq_read_iter+0x934/0x12b0 fs/seq_file.c:195 seq_read+0x3dd/0x5b0 fs/seq_file.c:162 full_proxy_read+0x11d/0x190 fs/debugfs/file.c:239 vfs_read+0x228/0x620 fs/read_write.c:494 ksys_read+0x12d/0x260 fs/read_write.c:634 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fdd3de8a65e Code: 0f 1f 40 00 48 c7 c2 bc ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffc3be28398 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007ffc3be289d8 RCX: 00007fdd3de8a65e RDX: 000000000001ffff RSI: 00007fdd3e3ef020 RDI: 0000000000000003 RBP: 0000000000000004 R08: 00000000000000d5 R09: 00007ffc3be52080 R10: 00007ffc3be52090 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc3be28470 R14: 0000000000000000 R15: 0000000000000003 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout EXT4-fs (loop2): Mount option "noacl" will be removed by 3.5 Contact linux-ext4@vger.kernel.org if you think we should keep it. EXT4-fs: failed to create workqueue EXT4-fs (loop2): mount failed EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir757806439/syzkaller.9bx40s/9/file0 supports timestamps until 2038-01-19 (0x7fffffff) netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. ---------------- Code disassembly (best guess): 0: 38 00 cmp %al,(%rax) 2: 0f 1f 00 nopl (%rax) 5: 55 push %rbp 6: 48 89 fd mov %rdi,%rbp 9: 48 83 c7 18 add $0x18,%rdi d: 53 push %rbx e: 48 89 f3 mov %rsi,%rbx 11: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 16: e8 7a 40 3f fd callq 0xfd3f4095 1b: 48 89 ef mov %rbp,%rdi 1e: e8 d2 fa 3f fd callq 0xfd3ffaf5 23: f6 c7 02 test $0x2,%bh 26: 75 10 jne 0x38 28: 53 push %rbx 29: 9d popfq * 2a: 65 ff 0d 84 69 1a 7c decl %gs:0x7c1a6984(%rip) # 0x7c1a69b5 <-- trapping instruction 31: 5b pop %rbx 32: 5d pop %rbp 33: e9 fd 39 38 00 jmpq 0x383a35 38: e8 88 20 5f fd callq 0xfd5f20c5 3d: eb e9 jmp 0x28 3f: 66 data16