Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:36918' (ECDSA) to the list of known hosts. 2022/09/14 14:11:26 fuzzer started 2022/09/14 14:11:26 dialing manager at localhost:33849 syzkaller login: [ 35.892732] cgroup: Unknown subsys name 'net' [ 36.003644] cgroup: Unknown subsys name 'rlimit' 2022/09/14 14:11:41 syscalls: 2215 2022/09/14 14:11:41 code coverage: enabled 2022/09/14 14:11:41 comparison tracing: enabled 2022/09/14 14:11:41 extra coverage: enabled 2022/09/14 14:11:41 setuid sandbox: enabled 2022/09/14 14:11:41 namespace sandbox: enabled 2022/09/14 14:11:41 Android sandbox: enabled 2022/09/14 14:11:41 fault injection: enabled 2022/09/14 14:11:41 leak checking: enabled 2022/09/14 14:11:41 net packet injection: enabled 2022/09/14 14:11:41 net device setup: enabled 2022/09/14 14:11:41 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/14 14:11:41 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/14 14:11:41 USB emulation: enabled 2022/09/14 14:11:41 hci packet injection: enabled 2022/09/14 14:11:41 wifi device emulation: failed to parse kernel version (6.0.0-rc5-next-20220914) 2022/09/14 14:11:41 802.15.4 emulation: enabled 2022/09/14 14:11:41 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/14 14:11:41 fetching corpus: 41, signal 26504/30114 (executing program) 2022/09/14 14:11:41 fetching corpus: 91, signal 45988/50990 (executing program) 2022/09/14 14:11:41 fetching corpus: 141, signal 54679/61109 (executing program) 2022/09/14 14:11:41 fetching corpus: 191, signal 61852/69581 (executing program) 2022/09/14 14:11:41 fetching corpus: 241, signal 72081/80842 (executing program) 2022/09/14 14:11:41 fetching corpus: 291, signal 77295/87246 (executing program) 2022/09/14 14:11:42 fetching corpus: 341, signal 82987/94075 (executing program) 2022/09/14 14:11:42 fetching corpus: 391, signal 89026/101134 (executing program) 2022/09/14 14:11:42 fetching corpus: 441, signal 90839/104148 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signal 250120/258705 (executing program) 2022/09/14 14:12:00 fetching corpus: 6953, signal 250120/258705 (executing program) 2022/09/14 14:12:03 starting 8 fuzzer processes 14:12:03 executing program 0: syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0) stat(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0}) setresuid(0x0, r0, 0x0) r1 = msgget$private(0x0, 0x0) msgsnd(r1, &(0x7f0000000300)={0x2}, 0x8, 0x0) 14:12:03 executing program 1: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/module/snd_hda_codec', 0x0, 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c06, 0xffffffffffffffff) 14:12:03 executing program 2: r0 = shmget$private(0x0, 0x3000, 0x0, &(0x7f0000ffd000/0x3000)=nil) shmctl$IPC_RMID(r0, 0x0) [ 72.410340] audit: type=1400 audit(1663164723.413:6): avc: denied { execmem } for pid=283 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 14:12:03 executing program 3: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@dev, 0x0, 0x0, 0xff, 0x9}, 0x22) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@remote, 0x2000000, 0x0, 0xff, 0x9}, 0x20) 14:12:03 executing program 4: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f00000001c0)=ANY=[@ANYBLOB="0100ff0000", @ANYRES32, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00./file0\x00']) ioctl$BTRFS_IOC_INO_LOOKUP(0xffffffffffffffff, 0xd0009412, 0x0) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000480), 0x1}, 0x4e30b}, 0x0, 0xffffffefffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='map_files\x00') fstat(0xffffffffffffffff, &(0x7f0000000a40)) stat(&(0x7f0000000180)='./file0\x00', &(0x7f0000000580)) stat(&(0x7f0000000140)='./file0\x00', &(0x7f0000000200)) getdents(r0, &(0x7f0000000000)=""/94, 0x20000018) fstat(0xffffffffffffffff, &(0x7f0000000400)) 14:12:03 executing program 5: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$TIOCL_BLANKSCREEN(r0, 0x541c, &(0x7f00000003c0)) 14:12:03 executing program 6: kexec_load(0x0, 0x1, &(0x7f0000000300)=[{0x0, 0x0, 0x100000000000000}], 0x0) 14:12:03 executing program 7: r0 = socket$inet6_udp(0xa, 0x2, 0x0) r1 = dup(r0) connect$inet6(r1, &(0x7f00000000c0)={0xa, 0x2, 0x0, @local, 0x2}, 0x1c) r2 = socket$inet6(0xa, 0x2, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r3, 0x29, 0x20, &(0x7f00000001c0)={@empty}, 0x20) fchownat(r3, &(0x7f0000000000)='./file0\x00', 0xffffffffffffffff, 0x0, 0x400) sendmmsg$inet6(r1, &(0x7f00000024c0)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=[@rthdr={{0x18, 0x29, 0x8}}], 0x18}}], 0x2, 0x0) [ 73.768204] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 73.770129] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 73.771544] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 73.773098] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 73.774580] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 73.775741] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 73.777012] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 73.778053] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 73.779045] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 73.780197] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 73.783378] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 73.784552] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 73.816576] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 73.818175] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 73.822159] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 73.823669] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 73.824918] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 73.826225] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 73.828377] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 73.829831] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 73.830896] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 73.832563] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 73.833891] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 73.834656] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 73.835171] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 73.837182] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 73.838787] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 73.838882] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 73.840040] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 73.841990] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 73.843366] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 73.849313] Bluetooth: hci1: HCI_REQ-0x0c1a [ 73.850903] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 73.852359] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 73.855586] Bluetooth: hci0: HCI_REQ-0x0c1a [ 73.860800] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 73.865158] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 73.865552] Bluetooth: hci3: HCI_REQ-0x0c1a [ 73.867186] Bluetooth: hci2: HCI_REQ-0x0c1a [ 73.869348] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 73.869375] Bluetooth: hci4: HCI_REQ-0x0c1a [ 73.875329] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 73.875738] Bluetooth: hci5: HCI_REQ-0x0c1a [ 73.879264] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 73.882223] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 73.887956] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 73.888517] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 73.893386] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 73.894850] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 73.898077] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 73.899368] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 73.900436] Bluetooth: hci7: HCI_REQ-0x0c1a [ 73.907105] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 73.910226] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 73.911731] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 73.916356] Bluetooth: hci6: HCI_REQ-0x0c1a [ 75.894820] Bluetooth: hci5: command 0x0409 tx timeout [ 75.895444] Bluetooth: hci1: command 0x0409 tx timeout [ 75.895964] Bluetooth: hci3: command 0x0409 tx timeout [ 75.896508] Bluetooth: hci2: command 0x0409 tx timeout [ 75.897015] Bluetooth: hci0: command 0x0409 tx timeout [ 76.022688] Bluetooth: hci7: command 0x0409 tx timeout [ 76.024226] Bluetooth: hci6: command 0x0409 tx timeout [ 76.026555] Bluetooth: hci4: command 0x0409 tx timeout [ 77.943620] Bluetooth: hci0: command 0x041b tx timeout [ 77.944176] Bluetooth: hci2: command 0x041b tx timeout [ 77.945400] Bluetooth: hci3: command 0x041b tx timeout [ 77.946098] Bluetooth: hci1: command 0x041b tx timeout [ 77.946987] Bluetooth: hci5: command 0x041b tx timeout [ 78.070606] Bluetooth: hci4: command 0x041b tx timeout [ 78.073334] Bluetooth: hci6: command 0x041b tx timeout [ 78.075768] Bluetooth: hci7: command 0x041b tx timeout [ 79.990590] Bluetooth: hci5: command 0x040f tx timeout [ 79.991221] Bluetooth: hci1: command 0x040f tx timeout [ 79.991879] Bluetooth: hci3: command 0x040f tx timeout [ 79.992428] Bluetooth: hci2: command 0x040f tx timeout [ 79.994775] Bluetooth: hci0: command 0x040f tx timeout [ 80.119545] Bluetooth: hci7: command 0x040f tx timeout [ 80.120085] Bluetooth: hci6: command 0x040f tx timeout [ 80.121062] Bluetooth: hci4: command 0x040f tx timeout [ 82.039579] Bluetooth: hci0: command 0x0419 tx timeout [ 82.040051] Bluetooth: hci2: command 0x0419 tx timeout [ 82.040451] Bluetooth: hci3: command 0x0419 tx timeout [ 82.041248] Bluetooth: hci1: command 0x0419 tx timeout [ 82.043234] Bluetooth: hci5: command 0x0419 tx timeout [ 82.166542] Bluetooth: hci4: command 0x0419 tx timeout [ 82.166995] Bluetooth: hci6: command 0x0419 tx timeout [ 82.167398] Bluetooth: hci7: command 0x0419 tx timeout 14:12:59 executing program 2: r0 = shmget$private(0x0, 0x3000, 0x0, &(0x7f0000ffd000/0x3000)=nil) shmctl$IPC_RMID(r0, 0x0) 14:13:00 executing program 2: r0 = shmget$private(0x0, 0x3000, 0x0, &(0x7f0000ffd000/0x3000)=nil) shmctl$IPC_RMID(r0, 0x0) 14:13:00 executing program 5: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$TIOCL_BLANKSCREEN(r0, 0x541c, &(0x7f00000003c0)) 14:13:00 executing program 2: r0 = shmget$private(0x0, 0x3000, 0x0, &(0x7f0000ffd000/0x3000)=nil) shmctl$IPC_RMID(r0, 0x0) 14:13:00 executing program 5: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$TIOCL_BLANKSCREEN(r0, 0x541c, &(0x7f00000003c0)) 14:13:00 executing program 2: syz_open_procfs(0x0, &(0x7f00000029c0)='net\x00') 14:13:00 executing program 5: r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) ioctl$TIOCL_BLANKSCREEN(r0, 0x541c, &(0x7f00000003c0)) 14:13:00 executing program 2: seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000040)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000080)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) socket$nl_audit(0x10, 0x3, 0x9) dup3(0xffffffffffffffff, 0xffffffffffffffff, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f0000000080)={0x1, &(0x7f0000000100)=[{0x6}]}) [ 129.632711] audit: type=1326 audit(1663164780.635:7): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=3813 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f1022f13b19 code=0x0 [ 129.731510] audit: type=1326 audit(1663164780.734:8): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=3813 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f1022f13b19 code=0x0 [ 130.424830] audit: type=1400 audit(1663164781.428:9): avc: denied { open } for pid=3855 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 [ 130.426883] audit: type=1400 audit(1663164781.428:10): avc: denied { kernel } for pid=3855 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 [ 130.441375] ------------[ cut here ]------------ [ 130.441410] [ 130.441416] ====================================================== [ 130.441422] WARNING: possible circular locking dependency detected [ 130.441429] 6.0.0-rc5-next-20220914 #1 Not tainted [ 130.441441] ------------------------------------------------------ [ 130.441447] syz-executor.4/3857 is trying to acquire lock: [ 130.441458] ffffffff853fa878 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 130.441523] [ 130.441523] but task is already holding lock: [ 130.441528] ffff88800e0d1c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 130.441577] [ 130.441577] which lock already depends on the new lock. [ 130.441577] [ 130.441582] [ 130.441582] the existing dependency chain (in reverse order) is: [ 130.441588] [ 130.441588] -> #3 (&ctx->lock){....}-{2:2}: [ 130.441613] _raw_spin_lock+0x2a/0x40 [ 130.441642] __perf_event_task_sched_out+0x53b/0x18d0 [ 130.441664] __schedule+0xedd/0x2470 [ 130.441683] schedule+0xda/0x1b0 [ 130.441700] futex_wait_queue+0xf5/0x1e0 [ 130.441720] futex_wait+0x28e/0x690 [ 130.441738] do_futex+0x2ff/0x380 [ 130.441754] __x64_sys_futex+0x1c6/0x4d0 [ 130.441772] do_syscall_64+0x3b/0x90 [ 130.441797] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.441828] [ 130.441828] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 130.441853] _raw_spin_lock_nested+0x30/0x40 [ 130.441880] raw_spin_rq_lock_nested+0x1e/0x30 [ 130.441902] task_fork_fair+0x63/0x4d0 [ 130.441932] sched_cgroup_fork+0x3d0/0x540 [ 130.441957] copy_process+0x4183/0x6e20 [ 130.441975] kernel_clone+0xe7/0x890 [ 130.441992] user_mode_thread+0xad/0xf0 [ 130.442010] rest_init+0x24/0x250 [ 130.442040] arch_call_rest_init+0xf/0x14 [ 130.442060] start_kernel+0x4c1/0x4e6 [ 130.442077] secondary_startup_64_no_verify+0xe0/0xeb [ 130.442102] [ 130.442102] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 130.442127] _raw_spin_lock_irqsave+0x39/0x60 [ 130.442155] try_to_wake_up+0xab/0x1920 [ 130.442178] up+0x75/0xb0 [ 130.442198] __up_console_sem+0x6e/0x80 [ 130.442226] console_unlock+0x46a/0x590 [ 130.442254] vt_ioctl+0x2822/0x2ca0 [ 130.442275] tty_ioctl+0x7c4/0x1700 [ 130.442295] __x64_sys_ioctl+0x19a/0x210 [ 130.442320] do_syscall_64+0x3b/0x90 [ 130.442344] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.442375] [ 130.442375] -> #0 ((console_sem).lock){....}-{2:2}: [ 130.442400] __lock_acquire+0x2a02/0x5e70 [ 130.442429] lock_acquire+0x1a2/0x530 [ 130.442458] _raw_spin_lock_irqsave+0x39/0x60 [ 130.442485] down_trylock+0xe/0x70 [ 130.442507] __down_trylock_console_sem+0x3b/0xd0 [ 130.442536] vprintk_emit+0x16b/0x560 [ 130.442565] vprintk+0x84/0xa0 [ 130.442594] _printk+0xba/0xf1 [ 130.442624] report_bug.cold+0x72/0xab [ 130.442647] handle_bug+0x3c/0x70 [ 130.442670] exc_invalid_op+0x14/0x50 [ 130.442694] asm_exc_invalid_op+0x16/0x20 [ 130.442723] group_sched_out.part.0+0x2c7/0x460 [ 130.442742] ctx_sched_out+0x8f1/0xc10 [ 130.442760] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.442782] __schedule+0xedd/0x2470 [ 130.442800] schedule+0xda/0x1b0 [ 130.442817] futex_wait_queue+0xf5/0x1e0 [ 130.442836] futex_wait+0x28e/0x690 [ 130.442854] do_futex+0x2ff/0x380 [ 130.442870] __x64_sys_futex+0x1c6/0x4d0 [ 130.442888] do_syscall_64+0x3b/0x90 [ 130.442912] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.442942] [ 130.442942] other info that might help us debug this: [ 130.442942] [ 130.442947] Chain exists of: [ 130.442947] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 130.442947] [ 130.442975] Possible unsafe locking scenario: [ 130.442975] [ 130.442979] CPU0 CPU1 [ 130.442983] ---- ---- [ 130.442987] lock(&ctx->lock); [ 130.442997] lock(&rq->__lock); [ 130.443009] lock(&ctx->lock); [ 130.443020] lock((console_sem).lock); [ 130.443031] [ 130.443031] *** DEADLOCK *** [ 130.443031] [ 130.443035] 2 locks held by syz-executor.4/3857: [ 130.443047] #0: ffff88806ce37cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 130.443095] #1: ffff88800e0d1c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 130.443146] [ 130.443146] stack backtrace: [ 130.443151] CPU: 0 PID: 3857 Comm: syz-executor.4 Not tainted 6.0.0-rc5-next-20220914 #1 [ 130.443174] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 130.443188] Call Trace: [ 130.443193] [ 130.443200] dump_stack_lvl+0x8b/0xb3 [ 130.443227] check_noncircular+0x263/0x2e0 [ 130.443257] ? format_decode+0x26c/0xb50 [ 130.443283] ? print_circular_bug+0x450/0x450 [ 130.443314] ? enable_ptr_key_workfn+0x20/0x20 [ 130.443341] ? format_decode+0x26c/0xb50 [ 130.443369] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 130.443401] __lock_acquire+0x2a02/0x5e70 [ 130.443440] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 130.443481] lock_acquire+0x1a2/0x530 [ 130.443512] ? down_trylock+0xe/0x70 [ 130.443538] ? rcu_read_unlock+0x40/0x40 [ 130.443576] ? vprintk+0x84/0xa0 [ 130.443608] _raw_spin_lock_irqsave+0x39/0x60 [ 130.443636] ? down_trylock+0xe/0x70 [ 130.443661] down_trylock+0xe/0x70 [ 130.443685] ? vprintk+0x84/0xa0 [ 130.443715] __down_trylock_console_sem+0x3b/0xd0 [ 130.443747] vprintk_emit+0x16b/0x560 [ 130.443781] vprintk+0x84/0xa0 [ 130.443813] _printk+0xba/0xf1 [ 130.443844] ? record_print_text.cold+0x16/0x16 [ 130.443884] ? report_bug.cold+0x66/0xab [ 130.443910] ? group_sched_out.part.0+0x2c7/0x460 [ 130.443931] report_bug.cold+0x72/0xab [ 130.443958] handle_bug+0x3c/0x70 [ 130.443983] exc_invalid_op+0x14/0x50 [ 130.444010] asm_exc_invalid_op+0x16/0x20 [ 130.444041] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 130.444065] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 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 [ 130.444095] RSP: 0018:ffff888042f278f8 EFLAGS: 00010006 [ 130.444112] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 130.444126] RDX: ffff88801d71d040 RSI: ffffffff81566027 RDI: 0000000000000005 [ 130.444140] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 130.444154] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800e0d1c00 [ 130.444168] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 130.444188] ? group_sched_out.part.0+0x2c7/0x460 [ 130.444212] ? group_sched_out.part.0+0x2c7/0x460 [ 130.444235] ctx_sched_out+0x8f1/0xc10 [ 130.444259] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.444287] ? lock_is_held_type+0xd7/0x130 [ 130.444320] ? __perf_cgroup_move+0x160/0x160 [ 130.444342] ? set_next_entity+0x304/0x550 [ 130.444377] ? lock_is_held_type+0xd7/0x130 [ 130.444411] __schedule+0xedd/0x2470 [ 130.444435] ? io_schedule_timeout+0x150/0x150 [ 130.444457] ? futex_wait_setup+0x166/0x230 [ 130.444483] schedule+0xda/0x1b0 [ 130.444503] futex_wait_queue+0xf5/0x1e0 [ 130.444525] futex_wait+0x28e/0x690 [ 130.444548] ? futex_wait_setup+0x230/0x230 [ 130.444572] ? wake_up_q+0x8b/0xf0 [ 130.444596] ? do_raw_spin_unlock+0x4f/0x220 [ 130.444631] ? futex_wake+0x158/0x490 [ 130.444660] ? fd_install+0x1f9/0x640 [ 130.444688] do_futex+0x2ff/0x380 [ 130.444708] ? __ia32_compat_sys_get_robust_list+0x3b0/0x3b0 [ 130.444737] __x64_sys_futex+0x1c6/0x4d0 [ 130.444760] ? __x64_sys_futex_time32+0x480/0x480 [ 130.444783] ? syscall_enter_from_user_mode+0x1d/0x50 [ 130.444817] ? syscall_enter_from_user_mode+0x1d/0x50 [ 130.444853] do_syscall_64+0x3b/0x90 [ 130.444879] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.444911] RIP: 0033:0x7f13d9133b19 [ 130.444926] 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 [ 130.444947] RSP: 002b:00007f13d66a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 130.444966] RAX: ffffffffffffffda RBX: 00007f13d9246f68 RCX: 00007f13d9133b19 [ 130.444981] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f13d9246f68 [ 130.444994] RBP: 00007f13d9246f60 R08: 0000000000000000 R09: 0000000000000000 [ 130.445008] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f13d9246f6c [ 130.445021] R13: 00007ffd9ff0af5f R14: 00007f13d66a9300 R15: 0000000000022000 [ 130.445044] [ 130.550981] WARNING: CPU: 0 PID: 3857 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 130.552134] Modules linked in: [ 130.552561] CPU: 0 PID: 3857 Comm: syz-executor.4 Not tainted 6.0.0-rc5-next-20220914 #1 [ 130.553586] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 130.555016] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 130.555719] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 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 [ 130.558045] RSP: 0018:ffff888042f278f8 EFLAGS: 00010006 [ 130.558728] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 130.559637] RDX: ffff88801d71d040 RSI: ffffffff81566027 RDI: 0000000000000005 [ 130.560549] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 130.561453] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800e0d1c00 [ 130.562365] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 130.563277] FS: 00007f13d66a9700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 130.564313] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 130.565086] CR2: 00007fff0919ff90 CR3: 000000004099a000 CR4: 0000000000350ef0 [ 130.566057] Call Trace: [ 130.566410] [ 130.566723] ctx_sched_out+0x8f1/0xc10 [ 130.567399] __perf_event_task_sched_out+0x6d0/0x18d0 [ 130.568209] ? lock_is_held_type+0xd7/0x130 [ 130.568817] ? __perf_cgroup_move+0x160/0x160 [ 130.569413] ? set_next_entity+0x304/0x550 [ 130.569995] ? lock_is_held_type+0xd7/0x130 [ 130.570798] __schedule+0xedd/0x2470 [ 130.571308] ? io_schedule_timeout+0x150/0x150 [ 130.571945] ? futex_wait_setup+0x166/0x230 [ 130.572594] schedule+0xda/0x1b0 [ 130.573228] futex_wait_queue+0xf5/0x1e0 [ 130.573773] futex_wait+0x28e/0x690 [ 130.574276] ? futex_wait_setup+0x230/0x230 [ 130.575013] ? wake_up_q+0x8b/0xf0 [ 130.575539] ? do_raw_spin_unlock+0x4f/0x220 [ 130.576175] ? futex_wake+0x158/0x490 [ 130.576696] ? fd_install+0x1f9/0x640 [ 130.577225] do_futex+0x2ff/0x380 [ 130.577711] ? __ia32_compat_sys_get_robust_list+0x3b0/0x3b0 [ 130.578471] __x64_sys_futex+0x1c6/0x4d0 [ 130.579011] ? __x64_sys_futex_time32+0x480/0x480 [ 130.579645] ? syscall_enter_from_user_mode+0x1d/0x50 [ 130.580354] ? syscall_enter_from_user_mode+0x1d/0x50 [ 130.581106] do_syscall_64+0x3b/0x90 [ 130.581776] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.582477] RIP: 0033:0x7f13d9133b19 [ 130.582975] 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 [ 130.585706] RSP: 002b:00007f13d66a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 130.586814] RAX: ffffffffffffffda RBX: 00007f13d9246f68 RCX: 00007f13d9133b19 [ 130.587817] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f13d9246f68 [ 130.588766] RBP: 00007f13d9246f60 R08: 0000000000000000 R09: 0000000000000000 [ 130.589710] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f13d9246f6c [ 130.590645] R13: 00007ffd9ff0af5f R14: 00007f13d66a9300 R15: 0000000000022000 [ 130.591603] [ 130.591927] irq event stamp: 674 [ 130.592387] hardirqs last enabled at (673): [] syscall_enter_from_user_mode+0x1d/0x50 [ 130.593669] hardirqs last disabled at (674): [] __schedule+0x1225/0x2470 [ 130.594770] softirqs last enabled at (538): [] __irq_exit_rcu+0x11b/0x180 [ 130.595901] softirqs last disabled at (529): [] __irq_exit_rcu+0x11b/0x180 [ 130.597068] ---[ end trace 0000000000000000 ]--- [ 136.822655] Bluetooth: hci3: Opcode 0x c03 failed: -110 [ 136.950556] Bluetooth: hci4: Opcode 0x c03 failed: -110 VM DIAGNOSIS: 14:13:01 Registers: info registers vcpu 0 RAX=000000000000000a RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b24f1 RDI=ffffffff87641b60 RBP=ffffffff87641b20 RSP=ffff888042f27348 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000001 R12=000000000000000a R13=ffffffff87641b20 R14=0000000000000010 R15=ffffffff822b24e0 RIP=ffffffff822b2549 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 00007f13d66a9700 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=00007fff0919ff90 CR3=000000004099a000 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 00007f13d921a7c0 00007f13d921a7c8 YMM02=0000000000000000 0000000000000000 00007f13d921a7e0 00007f13d921a7c0 YMM03=0000000000000000 0000000000000000 00007f13d921a7c8 00007f13d921a7c0 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=0000000000000000 RBX=ffff88806ce3eda0 RCX=0000000000000000 RDX=ffff888040e41ac0 RSI=ffffffff813bccdb RDI=0000000000000005 RBP=0000000000000003 RSP=ffff88801d8cf960 R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000001 R12=ffffed100d9c7db5 R13=ffff88806ce3eda8 R14=0000000000000001 R15=dffffc0000000000 RIP=ffffffff813bccdd RFL=00000293 [--S-A-C] 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 =0000 0000000000000000 00000000 00000000 DS =0000 0000000000000000 00000000 00000000 FS =0000 0000555556909400 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=00007f13d923c6dc CR3=000000004099a000 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 0000000000000000 0000000000000000 YMM01=0000000000000000 0000000000000000 00007f13d921a7c0 00007f13d921a7c8 YMM02=0000000000000000 0000000000000000 00007f13d921a7e0 00007f13d921a7c0 YMM03=0000000000000000 0000000000000000 00007f13d921a7c8 00007f13d921a7c0 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