Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:25262' (ECDSA) to the list of known hosts. 2023/02/24 11:28:16 fuzzer started 2023/02/24 11:28:16 dialing manager at localhost:41417 syzkaller login: [ 37.836881] cgroup: Unknown subsys name 'net' [ 37.962098] cgroup: Unknown subsys name 'rlimit' 2023/02/24 11:28:33 syscalls: 2217 2023/02/24 11:28:33 code coverage: enabled 2023/02/24 11:28:33 comparison tracing: enabled 2023/02/24 11:28:33 extra coverage: enabled 2023/02/24 11:28:33 setuid sandbox: enabled 2023/02/24 11:28:33 namespace sandbox: enabled 2023/02/24 11:28:33 Android sandbox: enabled 2023/02/24 11:28:33 fault injection: enabled 2023/02/24 11:28:33 leak checking: enabled 2023/02/24 11:28:33 net packet injection: enabled 2023/02/24 11:28:33 net device setup: enabled 2023/02/24 11:28:33 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2023/02/24 11:28:33 devlink PCI setup: PCI device 0000:00:10.0 is not available 2023/02/24 11:28:33 USB emulation: enabled 2023/02/24 11:28:33 hci packet injection: enabled 2023/02/24 11:28:33 wifi device emulation: enabled 2023/02/24 11:28:33 802.15.4 emulation: enabled 2023/02/24 11:28:33 fetching corpus: 0, signal 0/2000 (executing program) 2023/02/24 11:28:33 fetching corpus: 38, signal 20449/24122 (executing program) 2023/02/24 11:28:33 fetching corpus: 73, signal 33324/38601 (executing program) 2023/02/24 11:28:33 fetching corpus: 123, signal 50335/56885 (executing program) 2023/02/24 11:28:33 fetching corpus: 172, signal 56969/64889 (executing program) 2023/02/24 11:28:33 fetching corpus: 222, signal 64945/74100 (executing program) 2023/02/24 11:28:33 fetching corpus: 272, signal 72434/82690 (executing program) 2023/02/24 11:28:33 fetching corpus: 322, signal 79441/90738 (executing program) 2023/02/24 11:28:34 fetching corpus: 372, signal 83098/95550 (executing program) 2023/02/24 11:28:34 fetching corpus: 422, signal 86944/100479 (executing program) 2023/02/24 11:28:34 fetching 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fetching corpus: 10533, signal 262683/266602 (executing program) 2023/02/24 11:28:57 fetching corpus: 10576, signal 262904/266606 (executing program) 2023/02/24 11:28:57 fetching corpus: 10577, signal 262908/266618 (executing program) 2023/02/24 11:28:57 fetching corpus: 10577, signal 262908/266618 (executing program) 2023/02/24 11:29:00 starting 8 fuzzer processes 11:29:00 executing program 0: timer_create(0x0, &(0x7f00000001c0)={0x0, 0x0, 0xc517ee61e3ae62e9, @thr={0x0, 0x0}}, 0x0) 11:29:00 executing program 1: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000140)={0x0, 0x80, 0xe1, 0x1f, 0xe0, 0x3, 0x0, 0xfffffffffffffffe, 0x40, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x6, 0x1, @perf_config_ext={0xff, 0x3}, 0x9, 0x4, 0xef, 0x2, 0x10000, 0x7fffffff, 0x8000, 0x0, 0xcc5, 0x0, 0x7}, 0x0, 0xe, 0xffffffffffffffff, 0x8) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x40210}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x1, 0x0) openat(0xffffffffffffffff, &(0x7f0000001580)='./file1\x00', 0x40000, 0x2b) r1 = creat(&(0x7f0000000000)='./file0\x00', 0x0) perf_event_open(&(0x7f00000001c0)={0x2, 0x80, 0x8, 0x0, 0x5d, 0x81, 0x0, 0x9, 0x20085, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x6, @perf_config_ext={0x9, 0x1}, 0x0, 0x8001, 0x81, 0x4, 0x0, 0x51, 0x8000, 0x0, 0x6, 0x0, 0x94}, 0xffffffffffffffff, 0xa, 0xffffffffffffffff, 0x1) ioctl$EXT4_IOC_GROUP_ADD(r1, 0xc0c0583b, &(0x7f0000000040)) bind$inet6(r0, &(0x7f00000002c0)={0xa, 0x4e20, 0x0, @empty}, 0x1c) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @loopback}, 0x5}, 0x1c) prctl$PR_SET_IO_FLUSHER(0x39, 0x1) socket$inet_udp(0x2, 0x2, 0x0) sendto(0xffffffffffffffff, 0x0, 0x3e80, 0x0, 0x0, 0x0) 11:29:00 executing program 2: syz_io_uring_setup(0xfa7, &(0x7f0000000080), &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffe000/0x1000)=nil, 0x0, 0x0) r0 = shmget$private(0x0, 0x4000, 0x0, &(0x7f0000ffc000/0x4000)=nil) shmat(r0, &(0x7f0000ff9000/0x4000)=nil, 0x4000) move_pages(0x0, 0x1, &(0x7f0000001540)=[&(0x7f0000ffc000/0x4000)=nil], 0x0, &(0x7f0000000000), 0x0) 11:29:00 executing program 4: mlock2(&(0x7f0000ff7000/0x4000)=nil, 0x4000, 0x0) shmat(0xffffffffffffffff, &(0x7f0000fed000/0x13000)=nil, 0x0) shmget(0x3, 0xa000, 0x20, &(0x7f0000ff6000/0xa000)=nil) perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x80000001}, 0x0, 0x7ff}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x3) mincore(&(0x7f0000ffb000/0x1000)=nil, 0x1000, &(0x7f0000000540)=""/138) mmap$perf(&(0x7f0000ffa000/0x4000)=nil, 0x4000, 0x0, 0x10, 0xffffffffffffffff, 0x4) r0 = syz_open_procfs(0x0, &(0x7f0000000100)='net/tcp6\x00') perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x2000000000000000}, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000040), 0x41, 0x0) mincore(&(0x7f0000ff8000/0x2000)=nil, 0x2000, &(0x7f0000000700)=""/4096) r2 = ioctl$LOOP_CTL_GET_FREE(r1, 0x4c82) ioctl$LOOP_CTL_REMOVE(r1, 0x4c81, r2) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) fcntl$addseals(r0, 0x409, 0x4) r3 = shmget(0x3, 0xa000, 0x20, &(0x7f0000ff6000/0xa000)=nil) shmat(r3, &(0x7f0000ffe000/0x2000)=nil, 0x2000) shmat(r3, &(0x7f0000ff2000/0x3000)=nil, 0x2000) mremap(&(0x7f0000ff7000/0x2000)=nil, 0x2000, 0x2000, 0x7, &(0x7f0000ffe000/0x2000)=nil) 11:29:00 executing program 3: ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(0xffffffffffffffff, 0xc08c5332, &(0x7f0000000180)={0x0, 0x0, 0x0, 'queue0\x00'}) mknod(&(0x7f0000008d80)='./file0\x00', 0x0, 0x0) mount$9p_unix(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', 0x0, 0x1a901e, 0x0) acct(0x0) perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet_IP_XFRM_POLICY(0xffffffffffffffff, 0x0, 0x11, &(0x7f0000000780)={{{@in6=@mcast1, @in6=@local}}, {{@in=@loopback}, 0x0, @in6=@remote}}, 0x0) umount2(&(0x7f0000000140)='./file0\x00', 0x0) ioctl$SNDRV_TIMER_IOCTL_SELECT(0xffffffffffffffff, 0x40485404, &(0x7f00000002c0)) [ 78.713516] audit: type=1400 audit(1677238140.455:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 11:29:00 executing program 6: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) madvise(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x14) 11:29:00 executing program 5: r0 = syz_open_dev$tty20(0xc, 0x4, 0x0) write(r0, &(0x7f00000006c0)="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", 0x2a0) 11:29:00 executing program 7: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) prctl$PR_SET_MM_EXE_FILE(0x23, 0xd, r0) [ 79.997457] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 79.998648] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 80.000074] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 80.000875] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 80.001934] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 80.002936] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 80.006766] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 80.008104] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 80.010547] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 80.011141] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.012341] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 80.012997] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 80.013739] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 80.014400] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 80.014967] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 80.015637] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.016221] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 80.016709] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 80.019529] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 80.022628] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 80.023675] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.024102] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 80.025385] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 80.025464] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 80.026424] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 80.027970] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 80.028714] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 80.029423] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 80.031109] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 80.031732] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.031939] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 80.033365] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 80.037162] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 80.038145] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 80.048196] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 80.052334] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 80.141803] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 80.145473] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 80.152181] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 80.167409] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 80.174383] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 80.181273] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 82.054230] Bluetooth: hci3: command 0x0409 tx timeout [ 82.054286] Bluetooth: hci7: Opcode 0x c03 failed: -110 [ 82.055376] Bluetooth: hci5: command 0x0409 tx timeout [ 82.056602] [ 82.056739] ====================================================== [ 82.057159] WARNING: possible circular locking dependency detected [ 82.057571] 6.2.0-next-20230224 #1 Not tainted [ 82.057874] ------------------------------------------------------ [ 82.061133] syz-executor.7/275 is trying to acquire lock: [ 82.061487] ffff8880194c0880 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: __flush_work+0xdd/0xd80 [ 82.062186] [ 82.062186] but task is already holding lock: [ 82.062582] ffff8880194c0920 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}, at: hci_cmd_sync_clear+0x45/0x250 [ 82.063249] [ 82.063249] which lock already depends on the new lock. [ 82.063249] [ 82.063785] [ 82.063785] the existing dependency chain (in reverse order) is: [ 82.064267] [ 82.064267] -> #1 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}: [ 82.064750] __mutex_lock+0x133/0x14a0 [ 82.065180] hci_cmd_sync_work+0x1e6/0x320 [ 82.065642] process_one_work+0xa0f/0x1790 [ 82.066102] worker_thread+0x63b/0x1260 [ 82.066552] kthread+0x2e9/0x3a0 [ 82.066927] ret_from_fork+0x2c/0x50 [ 82.067340] [ 82.067340] -> #0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}: [ 82.068112] __lock_acquire+0x2d56/0x6380 [ 82.068573] lock_acquire.part.0+0xea/0x320 [ 82.069047] __flush_work+0x109/0xd80 [ 82.069479] __cancel_work_timer+0x39c/0x4e0 [ 82.069950] hci_cmd_sync_clear+0x52/0x250 [ 82.070406] hci_unregister_dev+0xf9/0x410 [ 82.070860] vhci_release+0x80/0x100 [ 82.071279] __fput+0x263/0xa40 [ 82.071647] task_work_run+0x174/0x280 [ 82.072075] do_exit+0xad8/0x2800 [ 82.072458] do_group_exit+0xd4/0x2a0 [ 82.072877] __x64_sys_exit_group+0x3e/0x50 [ 82.073339] do_syscall_64+0x3f/0x90 [ 82.073748] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 82.074289] [ 82.074289] other info that might help us debug this: [ 82.074289] [ 82.075013] Possible unsafe locking scenario: [ 82.075013] [ 82.075560] CPU0 CPU1 [ 82.075979] ---- ---- [ 82.076408] lock(&hdev->cmd_sync_work_lock); [ 82.076863] lock((work_completion)(&hdev->cmd_sync_work)); [ 82.077397] lock(&hdev->cmd_sync_work_lock); [ 82.077849] lock((work_completion)(&hdev->cmd_sync_work)); [ 82.078222] [ 82.078222] *** DEADLOCK *** [ 82.078222] [ 82.078619] 1 lock held by syz-executor.7/275: [ 82.078929] #0: ffff8880194c0920 (&hdev->cmd_sync_work_lock){+.+.}-{3:3}, at: hci_cmd_sync_clear+0x45/0x250 [ 82.079591] [ 82.079591] stack backtrace: [ 82.079891] CPU: 0 PID: 275 Comm: syz-executor.7 Not tainted 6.2.0-next-20230224 #1 [ 82.080403] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 82.080956] Call Trace: [ 82.081146] [ 82.081305] dump_stack_lvl+0x91/0xf0 [ 82.081565] check_noncircular+0x263/0x2e0 [ 82.081856] ? __pfx_check_noncircular+0x10/0x10 [ 82.082199] __lock_acquire+0x2d56/0x6380 [ 82.082486] ? lock_is_held_type+0x9f/0x120 [ 82.082782] ? __pfx___lock_acquire+0x10/0x10 [ 82.083090] ? __pfx_register_lock_class+0x10/0x10 [ 82.083424] ? __wait_for_common+0x394/0x550 [ 82.083732] ? __pfx_lock_release+0x10/0x10 [ 82.084039] lock_acquire.part.0+0xea/0x320 [ 82.084352] ? __flush_work+0xdd/0xd80 [ 82.084648] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 82.084995] ? __flush_work+0xdd/0xd80 [ 82.085276] ? rcu_read_lock_sched_held+0x42/0x80 [ 82.085613] ? trace_lock_acquire+0x170/0x1e0 [ 82.085937] ? __flush_work+0xdd/0xd80 [ 82.086228] ? lock_acquire+0x32/0xc0 [ 82.086507] ? __flush_work+0xdd/0xd80 [ 82.086799] __flush_work+0x109/0xd80 [ 82.087079] ? __flush_work+0xdd/0xd80 [ 82.087369] ? __pfx_mark_lock.part.0+0x10/0x10 [ 82.087706] ? __pfx___flush_work+0x10/0x10 [ 82.088019] ? lock_acquire.part.0+0xea/0x320 [ 82.088343] ? hci_cmd_sync_clear+0x45/0x250 [ 82.088676] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 82.089025] ? hci_cmd_sync_clear+0x45/0x250 [ 82.089340] ? rcu_read_lock_sched_held+0x42/0x80 [ 82.089682] ? trace_lock_acquire+0x170/0x1e0 [ 82.090007] ? lock_is_held_type+0x9f/0x120 [ 82.090319] ? mark_held_locks+0x9e/0xe0 [ 82.090614] __cancel_work_timer+0x39c/0x4e0 [ 82.090935] ? __pfx___cancel_work_timer+0x10/0x10 [ 82.091284] ? __cancel_work_timer+0x2aa/0x4e0 [ 82.091614] ? __pfx___cancel_work_timer+0x10/0x10 [ 82.091965] ? lock_release+0x1e3/0x710 [ 82.092261] ? __pfx_lock_release+0x10/0x10 [ 82.092579] ? do_raw_write_lock+0x11e/0x3b0 [ 82.092892] ? __pfx_vhci_release+0x10/0x10 [ 82.093201] hci_cmd_sync_clear+0x52/0x250 [ 82.093500] ? __pfx_vhci_release+0x10/0x10 [ 82.093805] hci_unregister_dev+0xf9/0x410 [ 82.094105] vhci_release+0x80/0x100 [ 82.094375] __fput+0x263/0xa40 [ 82.094621] task_work_run+0x174/0x280 [ 82.094908] ? __pfx_task_work_run+0x10/0x10 [ 82.095222] ? do_raw_spin_unlock+0x53/0x220 [ 82.095537] do_exit+0xad8/0x2800 [ 82.095791] ? lock_release+0x1e3/0x710 [ 82.096085] ? __pfx_lock_release+0x10/0x10 [ 82.096397] ? do_raw_spin_lock+0x125/0x270 [ 82.096712] ? __pfx_do_exit+0x10/0x10 [ 82.096990] do_group_exit+0xd4/0x2a0 [ 82.097267] __x64_sys_exit_group+0x3e/0x50 [ 82.097573] do_syscall_64+0x3f/0x90 [ 82.097839] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 82.098200] RIP: 0033:0x7f3851285b19 [ 82.098458] Code: Unable to access opcode bytes at 0x7f3851285aef. [ 82.098875] RSP: 002b:00007ffeb0239b28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 82.099395] RAX: ffffffffffffffda RBX: 00007ffeb023a308 RCX: 00007f3851285b19 [ 82.099881] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043 [ 82.100369] RBP: 0000000000000000 R08: 0000000000000026 R09: 00007ffeb023a308 [ 82.100862] R10: 0000000000000020 R11: 0000000000000246 R12: 00007f38512df233 [ 82.101346] R13: 0000000000000002 R14: 0000000000000000 R15: 00000000000000f8 [ 82.101834] [ 82.117838] Bluetooth: hci2: command 0x0409 tx timeout [ 82.118253] Bluetooth: hci4: command 0x0409 tx timeout [ 82.118809] Bluetooth: hci0: command 0x0409 tx timeout [ 82.119163] Bluetooth: hci1: command 0x0409 tx timeout [ 82.245831] Bluetooth: hci6: command 0x0409 tx timeout [ 84.101872] Bluetooth: hci5: command 0x041b tx timeout [ 84.102293] Bluetooth: hci3: command 0x041b tx timeout [ 84.165825] Bluetooth: hci1: command 0x041b tx timeout [ 84.166232] Bluetooth: hci0: command 0x041b tx timeout [ 84.166586] Bluetooth: hci4: command 0x041b tx timeout [ 84.166963] Bluetooth: hci2: command 0x041b tx timeout [ 84.294812] Bluetooth: hci6: command 0x041b tx timeout [ 86.149873] Bluetooth: hci3: command 0x040f tx timeout [ 86.149910] Bluetooth: hci5: command 0x040f tx timeout [ 86.214819] Bluetooth: hci2: command 0x040f tx timeout [ 86.215194] Bluetooth: hci4: command 0x040f tx timeout [ 86.215537] Bluetooth: hci0: command 0x040f tx timeout [ 86.215916] Bluetooth: hci1: command 0x040f tx timeout [ 86.341869] Bluetooth: hci6: command 0x040f tx timeout [ 87.366844] Bluetooth: hci7: Opcode 0x c03 failed: -110 [ 88.197835] Bluetooth: hci5: command 0x0419 tx timeout [ 88.198855] Bluetooth: hci3: command 0x0419 tx timeout [ 88.261828] Bluetooth: hci1: command 0x0419 tx timeout [ 88.261865] Bluetooth: hci0: command 0x0419 tx timeout [ 88.262227] Bluetooth: hci4: command 0x0419 tx timeout [ 88.262584] Bluetooth: hci2: command 0x0419 tx timeout [ 88.389863] Bluetooth: hci6: command 0x0419 tx timeout VM DIAGNOSIS: 11:29:04 Registers: info registers vcpu 0 RAX=000000000000002d RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82502865 RDI=ffffffff87f10da0 RBP=ffffffff87f10d60 RSP=ffff88803f50f190 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002d R11=0000000000000001 R12=000000000000002d R13=ffffffff87f10d60 R14=0000000000000010 R15=ffffffff82502850 RIP=ffffffff825028bd RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe4a2907a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe4a29078000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fadad39e44e CR3=000000001605c000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=7465756c42205d3337323138312e3038 XMM04=636f72703d7373616c63742030733a74 XMM05=3a755f6d65747379733d747865746e6f XMM06=5f6d65747379733a755f6d6574737973 XMM07=00000000000000000000000000000000 XMM08=2078742039303430783020646e616d6d XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=dffffc0000000000 RBX=0000000000000005 RCX=ffffffff84409329 RDX=1ffff11002d3ae87 RSI=00007ff27fc2efff RDI=0000000000000000 RBP=0000000000000006 RSP=ffff8880169d72c8 R8 =0000000000000004 R9 =0000000000000007 R10=0000000000000005 R11=0000000000000001 R12=ffff8880169d7408 R13=ffff888041235230 R14=00007ff27fc2efff R15=0000000000000005 RIP=ffffffff814b71b8 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe53d4455000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe53d4453000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ff2801331f0 CR3=0000000016ec4000 CR4=00350ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=756e696c2d34365f3638782f62696c2f XMM01=6461657268747062696c2f756e672d78 XMM02=00302e6f732e6461657268747062696c XMM03=2f756e672d78756e696c2d34365f3638 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000