Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:37721' (ECDSA) to the list of known hosts. 2022/09/19 14:32:04 fuzzer started 2022/09/19 14:32:05 dialing manager at localhost:42121 syzkaller login: [ 39.925166] cgroup: Unknown subsys name 'net' [ 40.017806] cgroup: Unknown subsys name 'rlimit' 2022/09/19 14:32:21 syscalls: 2215 2022/09/19 14:32:21 code coverage: enabled 2022/09/19 14:32:21 comparison tracing: enabled 2022/09/19 14:32:21 extra coverage: enabled 2022/09/19 14:32:21 setuid sandbox: enabled 2022/09/19 14:32:21 namespace sandbox: enabled 2022/09/19 14:32:21 Android sandbox: enabled 2022/09/19 14:32:21 fault injection: enabled 2022/09/19 14:32:21 leak checking: enabled 2022/09/19 14:32:21 net packet injection: enabled 2022/09/19 14:32:21 net device setup: enabled 2022/09/19 14:32:21 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/19 14:32:21 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/19 14:32:21 USB emulation: enabled 2022/09/19 14:32:21 hci packet injection: enabled 2022/09/19 14:32:21 wifi device emulation: failed to parse kernel version (6.0.0-rc6-next-20220919) 2022/09/19 14:32:21 802.15.4 emulation: enabled 2022/09/19 14:32:21 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/19 14:32:21 fetching corpus: 36, signal 24748/28292 (executing program) 2022/09/19 14:32:21 fetching corpus: 82, signal 35447/40509 (executing program) 2022/09/19 14:32:21 fetching corpus: 131, signal 46352/52703 (executing program) 2022/09/19 14:32:22 fetching corpus: 180, signal 54986/62531 (executing program) 2022/09/19 14:32:22 fetching corpus: 228, signal 61112/69841 (executing program) 2022/09/19 14:32:22 fetching corpus: 278, signal 69526/79140 (executing program) 2022/09/19 14:32:22 fetching corpus: 328, signal 75665/86161 (executing program) 2022/09/19 14:32:22 fetching corpus: 377, signal 81381/92714 (executing program) 2022/09/19 14:32:22 fetching corpus: 426, signal 84551/96880 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program) 2022/09/19 14:32:35 fetching corpus: 5205, signal 212745/219922 (executing program) 2022/09/19 14:32:35 fetching corpus: 5254, signal 213037/220003 (executing program) 2022/09/19 14:32:35 fetching corpus: 5303, signal 213640/220058 (executing program) 2022/09/19 14:32:35 fetching corpus: 5328, signal 214163/220058 (executing program) 2022/09/19 14:32:35 fetching corpus: 5328, signal 214163/220058 (executing program) 2022/09/19 14:32:37 starting 8 fuzzer processes 14:32:37 executing program 0: r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000003c0)='net/ip_tables_names\x00') preadv2(r0, &(0x7f0000000380)=[{&(0x7f0000001c40)=""/159, 0x9f}], 0x1, 0x0, 0x0, 0x0) 14:32:37 executing program 1: syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0) pipe2$9p(&(0x7f00000000c0)={0xffffffffffffffff}, 0x0) open_tree(0xffffffffffffffff, 0x0, 0x0) r1 = mq_open(&(0x7f00000056c0)='syz1\x00', 0x842, 0x0, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000004c0), 0x0, &(0x7f0000000400)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) 14:32:37 executing program 2: openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x40, 0x0) 14:32:37 executing program 3: r0 = gettid() kcmp$KCMP_EPOLL_TFD(0x0, r0, 0x7, 0xffffffffffffffff, 0x0) 14:32:37 executing program 4: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000240), 0x9}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/locks\x00', 0x0, 0x0) fcntl$setlease(r0, 0x400, 0x0) fcntl$setlease(r0, 0x400, 0x2) r1 = syz_genetlink_get_family_id$ieee802154(&(0x7f0000000040), 0xffffffffffffffff) syz_open_procfs(0xffffffffffffffff, &(0x7f00000005c0)='net/protocols\x00') ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000340)=0x2) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000700)={&(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ff9000/0x2000)=nil, &(0x7f0000ffe000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffa000/0x4000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000780)}, 0x68) sendmsg$IEEE802154_LLSEC_ADD_DEV(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000008c0)=ANY=[@ANYBLOB="5e86055208c76b659d48ec2b9476260f12789c1567866fb1bb5575adc7a85afd4f3795ca060d900f96d1d928d9a7779668b6dc6fed05c17ca9d5df00cf408eacff4be721287e051772e0df31fcb79599e7ffb3d0f1b611500325e43144cbbd8865fbb3bf7a70492561507b3a2239929636d58f540bd0771e3f2dba65ffbff87477a7149dc31664ea79b107bee6c3f9834628be04faee38818df0c425334b92198efa69990e87eaf5f45573c3c53ed721e98de5ae2422fc5b543b10c83fe27a34862fc841b53cf14fe96f4f734c453aa8f9e3ffe2330566bb0bbf2e9db91125c6eda10003e41f32", @ANYRES16=r1, @ANYBLOB="010600000000000000002a00000008002f0000000000080002001d9a84996501e4316a9309942f8f2c244631aa4f47a03ab053020173b855c9707c43bb0feb19", @ANYRES32, @ANYBLOB], 0x24}}, 0x0) recvmsg$unix(0xffffffffffffffff, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000380)=""/90, 0x5a}, {&(0x7f0000000400)=""/208, 0xd0}], 0x2, &(0x7f0000000540)=[@cred={{0x1c}}, @cred={{0x1c}}], 0x40}, 0x3) syz_io_uring_setup(0x5081, &(0x7f0000000180)={0x0, 0x6594, 0x1, 0x2, 0x2ce}, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffa000/0x3000)=nil, &(0x7f0000000200), &(0x7f00000006c0)) 14:32:37 executing program 5: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000100), 0x165c02, 0x0) preadv(r0, &(0x7f0000001540)=[{0x0}, {&(0x7f0000000440)=""/137, 0x89}], 0x2, 0x0, 0x0) 14:32:37 executing program 6: madvise(&(0x7f0000ffd000/0x1000)=nil, 0x1000, 0x1) madvise(&(0x7f0000ff4000/0xc000)=nil, 0xc000, 0x0) 14:32:37 executing program 7: keyctl$instantiate(0xc, 0x0, &(0x7f0000000040)=@encrypted_new={'new ', 'ecryptfs', 0x20, 'user:', 'trusted:'}, 0xffffffffffffff1d, 0xffffffffffffffff) [ 71.009027] audit: type=1400 audit(1663597957.926:6): avc: denied { execmem } for pid=286 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 72.356180] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 72.357918] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 72.360367] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 72.361760] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 72.363205] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 72.364900] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 72.366870] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 72.369538] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 72.370888] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 72.374711] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 72.375977] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 72.377841] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 72.381904] Bluetooth: hci1: HCI_REQ-0x0c1a [ 72.389893] Bluetooth: hci0: HCI_REQ-0x0c1a [ 72.429963] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 72.432598] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 72.434416] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 72.436527] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 72.437987] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 72.438410] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 72.441027] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 72.441953] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 72.445204] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 72.446626] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 72.446634] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 72.447869] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 72.449383] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 72.451049] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 72.451518] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 72.453292] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 72.455392] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 72.455891] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 72.456895] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 72.458032] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 72.459319] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 72.460221] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 72.464968] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 72.466389] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 72.467984] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 72.469039] Bluetooth: hci7: HCI_REQ-0x0c1a [ 72.470697] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 72.480456] Bluetooth: hci5: HCI_REQ-0x0c1a [ 72.485937] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 72.490356] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 72.491722] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 72.492910] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 72.495413] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 72.496755] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 72.497872] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 72.499325] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 72.500949] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 72.502072] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 72.519381] Bluetooth: hci2: HCI_REQ-0x0c1a [ 72.521473] Bluetooth: hci6: HCI_REQ-0x0c1a [ 72.522454] Bluetooth: hci4: HCI_REQ-0x0c1a [ 72.523310] Bluetooth: hci3: HCI_REQ-0x0c1a [ 74.432654] Bluetooth: hci1: command 0x0409 tx timeout [ 74.433127] Bluetooth: hci0: command 0x0409 tx timeout [ 74.496167] Bluetooth: hci5: command 0x0409 tx timeout [ 74.497555] Bluetooth: hci7: command 0x0409 tx timeout [ 74.560265] Bluetooth: hci2: command 0x0409 tx timeout [ 74.561152] Bluetooth: hci6: command 0x0409 tx timeout [ 74.561634] Bluetooth: hci3: command 0x0409 tx timeout [ 74.562036] Bluetooth: hci4: command 0x0409 tx timeout [ 76.482139] Bluetooth: hci0: command 0x041b tx timeout [ 76.482594] Bluetooth: hci1: command 0x041b tx timeout [ 76.544176] Bluetooth: hci7: command 0x041b tx timeout [ 76.544690] Bluetooth: hci5: command 0x041b tx timeout [ 76.608180] Bluetooth: hci4: command 0x041b tx timeout [ 76.608691] Bluetooth: hci3: command 0x041b tx timeout [ 76.609322] Bluetooth: hci6: command 0x041b tx timeout [ 76.609785] Bluetooth: hci2: command 0x041b tx timeout [ 78.528524] Bluetooth: hci1: command 0x040f tx timeout [ 78.529058] Bluetooth: hci0: command 0x040f tx timeout [ 78.592189] Bluetooth: hci5: command 0x040f tx timeout [ 78.592676] Bluetooth: hci7: command 0x040f tx timeout [ 78.656222] Bluetooth: hci2: command 0x040f tx timeout [ 78.656692] Bluetooth: hci6: command 0x040f tx timeout [ 78.657649] Bluetooth: hci3: command 0x040f tx timeout [ 78.658120] Bluetooth: hci4: command 0x040f tx timeout [ 80.576222] Bluetooth: hci0: command 0x0419 tx timeout [ 80.576924] Bluetooth: hci1: command 0x0419 tx timeout [ 80.640263] Bluetooth: hci7: command 0x0419 tx timeout [ 80.640973] Bluetooth: hci5: command 0x0419 tx timeout [ 80.704209] Bluetooth: hci4: command 0x0419 tx timeout [ 80.704852] Bluetooth: hci3: command 0x0419 tx timeout [ 80.706288] Bluetooth: hci6: command 0x0419 tx timeout [ 80.706864] Bluetooth: hci2: command 0x0419 tx timeout 14:33:35 executing program 5: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000100), 0x165c02, 0x0) preadv(r0, &(0x7f0000001540)=[{0x0}, {&(0x7f0000000440)=""/137, 0x89}], 0x2, 0x0, 0x0) 14:33:35 executing program 5: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000100), 0x165c02, 0x0) preadv(r0, &(0x7f0000001540)=[{0x0}, {&(0x7f0000000440)=""/137, 0x89}], 0x2, 0x0, 0x0) 14:33:35 executing program 5: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000100), 0x165c02, 0x0) preadv(r0, &(0x7f0000001540)=[{0x0}, {&(0x7f0000000440)=""/137, 0x89}], 0x2, 0x0, 0x0) 14:33:36 executing program 5: r0 = syz_open_dev$loop(&(0x7f0000004200), 0x0, 0x0) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r0, 0x660c) 14:33:36 executing program 5: r0 = syz_open_dev$loop(&(0x7f0000004200), 0x0, 0x0) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r0, 0x660c) 14:33:36 executing program 5: r0 = syz_open_dev$loop(&(0x7f0000004200), 0x0, 0x0) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r0, 0x660c) 14:33:36 executing program 5: r0 = syz_open_dev$loop(&(0x7f0000004200), 0x0, 0x0) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r0, 0x660c) 14:33:36 executing program 5: futex(&(0x7f00000000c0), 0x10d, 0x0, &(0x7f0000000140), 0x0, 0x0) [ 130.714459] audit: type=1400 audit(1663598017.632:7): avc: denied { open } for pid=3904 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 130.715983] audit: type=1400 audit(1663598017.632:8): avc: denied { kernel } for pid=3904 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 130.725081] ------------[ cut here ]------------ [ 130.725106] [ 130.725109] ====================================================== [ 130.725113] WARNING: possible circular locking dependency detected [ 130.725118] 6.0.0-rc6-next-20220919 #1 Not tainted [ 130.725126] ------------------------------------------------------ [ 130.725130] syz-executor.4/3905 is trying to acquire lock: [ 130.725138] ffffffff853fa838 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 130.725183] [ 130.725183] but task is already holding lock: [ 130.725187] ffff88800934e420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 130.725220] [ 130.725220] which lock already depends on the new lock. [ 130.725220] [ 130.725224] [ 130.725224] the existing dependency chain (in reverse order) is: [ 130.725228] [ 130.725228] -> #3 (&ctx->lock){....}-{2:2}: [ 130.725245] _raw_spin_lock+0x2a/0x40 [ 130.725266] __perf_event_task_sched_out+0x53b/0x18d0 [ 130.725282] __schedule+0xedd/0x2470 [ 130.725295] schedule+0xda/0x1b0 [ 130.725307] exit_to_user_mode_prepare+0x114/0x1a0 [ 130.725332] syscall_exit_to_user_mode+0x19/0x40 [ 130.725354] do_syscall_64+0x48/0x90 [ 130.725370] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.725392] [ 130.725392] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 130.725409] _raw_spin_lock_nested+0x30/0x40 [ 130.725427] raw_spin_rq_lock_nested+0x1e/0x30 [ 130.725443] task_fork_fair+0x63/0x4d0 [ 130.725464] sched_cgroup_fork+0x3d0/0x540 [ 130.725481] copy_process+0x4183/0x6e20 [ 130.725494] kernel_clone+0xe7/0x890 [ 130.725506] user_mode_thread+0xad/0xf0 [ 130.725518] rest_init+0x24/0x250 [ 130.725538] arch_call_rest_init+0xf/0x14 [ 130.725553] start_kernel+0x4c1/0x4e6 [ 130.725565] secondary_startup_64_no_verify+0xe0/0xeb [ 130.725583] [ 130.725583] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 130.725600] _raw_spin_lock_irqsave+0x39/0x60 [ 130.725618] try_to_wake_up+0xab/0x1920 [ 130.725634] up+0x75/0xb0 [ 130.725648] __up_console_sem+0x6e/0x80 [ 130.725667] console_unlock+0x46a/0x590 [ 130.725686] vt_ioctl+0x2822/0x2ca0 [ 130.725702] tty_ioctl+0x7c4/0x1700 [ 130.725715] __x64_sys_ioctl+0x19a/0x210 [ 130.725734] do_syscall_64+0x3b/0x90 [ 130.725750] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.725771] [ 130.725771] -> #0 ((console_sem).lock){....}-{2:2}: [ 130.725788] __lock_acquire+0x2a02/0x5e70 [ 130.725808] lock_acquire+0x1a2/0x530 [ 130.725827] _raw_spin_lock_irqsave+0x39/0x60 [ 130.725845] down_trylock+0xe/0x70 [ 130.725860] __down_trylock_console_sem+0x3b/0xd0 [ 130.725880] vprintk_emit+0x16b/0x560 [ 130.725900] vprintk+0x84/0xa0 [ 130.725919] _printk+0xba/0xf1 [ 130.725940] report_bug.cold+0x72/0xab [ 130.725956] handle_bug+0x3c/0x70 [ 130.725972] exc_invalid_op+0x14/0x50 [ 130.725988] asm_exc_invalid_op+0x16/0x20 [ 130.726008] group_sched_out.part.0+0x2c7/0x460 [ 130.726020] ctx_sched_out+0x8f1/0xc10 [ 130.726032] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.726047] __schedule+0xedd/0x2470 [ 130.726059] schedule+0xda/0x1b0 [ 130.726071] exit_to_user_mode_prepare+0x114/0x1a0 [ 130.726094] syscall_exit_to_user_mode+0x19/0x40 [ 130.726114] do_syscall_64+0x48/0x90 [ 130.726130] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.726151] [ 130.726151] other info that might help us debug this: [ 130.726151] [ 130.726154] Chain exists of: [ 130.726154] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 130.726154] [ 130.726173] Possible unsafe locking scenario: [ 130.726173] [ 130.726176] CPU0 CPU1 [ 130.726179] ---- ---- [ 130.726181] lock(&ctx->lock); [ 130.726188] lock(&rq->__lock); [ 130.726196] lock(&ctx->lock); [ 130.726204] lock((console_sem).lock); [ 130.726211] [ 130.726211] *** DEADLOCK *** [ 130.726211] [ 130.726213] 2 locks held by syz-executor.4/3905: [ 130.726222] #0: ffff88806ce37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 130.726254] #1: ffff88800934e420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 130.726288] [ 130.726288] stack backtrace: [ 130.726291] CPU: 0 PID: 3905 Comm: syz-executor.4 Not tainted 6.0.0-rc6-next-20220919 #1 [ 130.726307] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 130.726317] Call Trace: [ 130.726321] [ 130.726326] dump_stack_lvl+0x8b/0xb3 [ 130.726344] check_noncircular+0x263/0x2e0 [ 130.726364] ? format_decode+0x26c/0xb50 [ 130.726383] ? print_circular_bug+0x450/0x450 [ 130.726404] ? enable_ptr_key_workfn+0x20/0x20 [ 130.726422] ? format_decode+0x26c/0xb50 [ 130.726442] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 130.726463] __lock_acquire+0x2a02/0x5e70 [ 130.726490] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 130.726517] lock_acquire+0x1a2/0x530 [ 130.726537] ? down_trylock+0xe/0x70 [ 130.726555] ? lock_release+0x750/0x750 [ 130.726580] ? vprintk+0x84/0xa0 [ 130.726602] _raw_spin_lock_irqsave+0x39/0x60 [ 130.726621] ? down_trylock+0xe/0x70 [ 130.726638] down_trylock+0xe/0x70 [ 130.726654] ? vprintk+0x84/0xa0 [ 130.726674] __down_trylock_console_sem+0x3b/0xd0 [ 130.726695] vprintk_emit+0x16b/0x560 [ 130.726719] vprintk+0x84/0xa0 [ 130.726740] _printk+0xba/0xf1 [ 130.726761] ? record_print_text.cold+0x16/0x16 [ 130.726788] ? report_bug.cold+0x66/0xab [ 130.726806] ? group_sched_out.part.0+0x2c7/0x460 [ 130.726820] report_bug.cold+0x72/0xab [ 130.726839] handle_bug+0x3c/0x70 [ 130.726856] exc_invalid_op+0x14/0x50 [ 130.726874] asm_exc_invalid_op+0x16/0x20 [ 130.726895] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 130.726911] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d 5b 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 130.726925] RSP: 0018:ffff88803deafc48 EFLAGS: 00010006 [ 130.726936] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 130.726946] RDX: ffff88803ea81ac0 RSI: ffffffff81566077 RDI: 0000000000000005 [ 130.726956] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 130.726965] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800934e400 [ 130.726975] R13: ffff88806ce3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 130.726989] ? group_sched_out.part.0+0x2c7/0x460 [ 130.727005] ? group_sched_out.part.0+0x2c7/0x460 [ 130.727021] ctx_sched_out+0x8f1/0xc10 [ 130.727036] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.727055] ? lock_is_held_type+0xd7/0x130 [ 130.727078] ? __perf_cgroup_move+0x160/0x160 [ 130.727092] ? set_next_entity+0x304/0x550 [ 130.727114] ? update_curr+0x267/0x740 [ 130.727136] ? lock_is_held_type+0xd7/0x130 [ 130.727159] __schedule+0xedd/0x2470 [ 130.727176] ? io_schedule_timeout+0x150/0x150 [ 130.727192] ? rcu_read_lock_sched_held+0x3e/0x80 [ 130.727217] schedule+0xda/0x1b0 [ 130.727231] exit_to_user_mode_prepare+0x114/0x1a0 [ 130.727256] syscall_exit_to_user_mode+0x19/0x40 [ 130.727278] do_syscall_64+0x48/0x90 [ 130.727295] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.727317] RIP: 0033:0x7f06efb3cb19 [ 130.727328] 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 [ 130.727342] RSP: 002b:00007f06ed0b2218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 130.727355] RAX: 0000000000000001 RBX: 00007f06efc4ff68 RCX: 00007f06efb3cb19 [ 130.727365] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f06efc4ff6c [ 130.727374] RBP: 00007f06efc4ff60 R08: 000000000000000e R09: 0000000000000000 [ 130.727383] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f06efc4ff6c [ 130.727392] R13: 00007ffd3b3bbfdf R14: 00007f06ed0b2300 R15: 0000000000022000 [ 130.727408] [ 130.804135] WARNING: CPU: 0 PID: 3905 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 130.805254] Modules linked in: [ 130.805627] CPU: 0 PID: 3905 Comm: syz-executor.4 Not tainted 6.0.0-rc6-next-20220919 #1 [ 130.806566] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 130.807846] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 130.808484] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d 5b 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 130.810621] RSP: 0018:ffff88803deafc48 EFLAGS: 00010006 [ 130.811259] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 130.812071] RDX: ffff88803ea81ac0 RSI: ffffffff81566077 RDI: 0000000000000005 [ 130.812926] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 130.813731] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800934e400 [ 130.814571] R13: ffff88806ce3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 130.815423] FS: 00007f06ed0b2700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 130.816366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 130.817066] CR2: 0000557055416c70 CR3: 000000003f410000 CR4: 0000000000350ef0 [ 130.817915] Call Trace: [ 130.818214] [ 130.818474] ctx_sched_out+0x8f1/0xc10 [ 130.818933] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.819548] ? lock_is_held_type+0xd7/0x130 [ 130.820081] ? __perf_cgroup_move+0x160/0x160 [ 130.820619] ? set_next_entity+0x304/0x550 [ 130.821163] ? update_curr+0x267/0x740 [ 130.821646] ? lock_is_held_type+0xd7/0x130 [ 130.822178] __schedule+0xedd/0x2470 [ 130.822636] ? io_schedule_timeout+0x150/0x150 [ 130.823191] ? rcu_read_lock_sched_held+0x3e/0x80 [ 130.823784] schedule+0xda/0x1b0 [ 130.824178] exit_to_user_mode_prepare+0x114/0x1a0 [ 130.824751] syscall_exit_to_user_mode+0x19/0x40 [ 130.825341] do_syscall_64+0x48/0x90 [ 130.825792] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.826382] RIP: 0033:0x7f06efb3cb19 [ 130.826817] 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 [ 130.828994] RSP: 002b:00007f06ed0b2218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 130.829896] RAX: 0000000000000001 RBX: 00007f06efc4ff68 RCX: 00007f06efb3cb19 [ 130.830540] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f06efc4ff6c [ 130.831118] RBP: 00007f06efc4ff60 R08: 000000000000000e R09: 0000000000000000 [ 130.831697] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f06efc4ff6c [ 130.832274] R13: 00007ffd3b3bbfdf R14: 00007f06ed0b2300 R15: 0000000000022000 [ 130.832874] [ 130.833076] irq event stamp: 880 [ 130.833355] hardirqs last enabled at (879): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 130.834120] hardirqs last disabled at (880): [] __schedule+0x1225/0x2470 [ 130.834787] softirqs last enabled at (720): [] __irq_exit_rcu+0x11b/0x180 [ 130.835482] softirqs last disabled at (537): [] __irq_exit_rcu+0x11b/0x180 [ 130.836171] ---[ end trace 0000000000000000 ]--- [ 131.174380] syz-executor.1 (295) used greatest stack depth: 24640 bytes left [ 135.488229] Bluetooth: hci6: Opcode 0x c03 failed: -110 [ 135.488225] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 135.552140] Bluetooth: hci7: Opcode 0x c03 failed: -110 [ 139.712244] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 139.776126] Bluetooth: hci6: Opcode 0x c03 failed: -110 [ 139.840120] Bluetooth: hci7: Opcode 0x c03 failed: -110 VM DIAGNOSIS: 14:33:37 Registers: info registers vcpu 0 RAX=000000000000003a RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b2e71 RDI=ffffffff87641ba0 RBP=ffffffff87641b60 RSP=ffff88803deaf698 R8 =0000000000000001 R9 =000000000000000a R10=000000000000003a R11=0000000000000001 R12=000000000000003a R13=ffffffff87641b60 R14=0000000000000010 R15=ffffffff822b2e60 RIP=ffffffff822b2ec9 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 00007f06ed0b2700 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000557055416c70 CR3=000000003f410000 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 YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM01=0000000000000000 0000000000000000 00007f06efc237c0 00007f06efc237c8 YMM02=0000000000000000 0000000000000000 00007f06efc237e0 00007f06efc237c0 YMM03=0000000000000000 0000000000000000 00007f06efc237c8 00007f06efc237c0 YMM04=0000000000000000 0000000000000000 ffffffffffffffff ffffffff00000000 YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM06=0000000000000000 0000000000000000 0000000000000000 000000524f525245 YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM08=0000000000000000 0000000000000000 0000000000000000 00524f5252450040 YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 info registers vcpu 1 RAX=dffffc0000000000 RBX=ffff88803f4d77c8 RCX=0000000000000000 RDX=1ffff11007e9af04 RSI=ffff88803f4d7b30 RDI=ffffffff81784d81 RBP=ffff88803f4d7820 RSP=ffff88803f4d77b0 R8 =ffffffff85edaad4 R9 =ffffffff85edaad8 R10=ffffed1007e9af06 R11=ffff88803f4d7808 R12=ffff88803f4d7890 R13=0000000000000000 R14=ffff88803f560000 R15=0000000000000dc0 RIP=ffffffff8111b0ce 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 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f93a19c16f4 CR3=000000000d4a0000 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 YMM00=0000000000000000 0000000000000000 756e696c2d34365f 3638782f62696c2f YMM01=0000000000000000 0000000000000000 00362e6f732e6362 696c2f756e672d78 YMM02=0000000000000000 0000000000000000 ffff0000000000ff ffffffffffffffff YMM03=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff YMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000