Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:12486' (ECDSA) to the list of known hosts. 2022/09/21 14:36:04 fuzzer started 2022/09/21 14:36:04 dialing manager at localhost:40289 syzkaller login: [ 37.277556] cgroup: Unknown subsys name 'net' [ 37.490661] cgroup: Unknown subsys name 'rlimit' 2022/09/21 14:36:19 syscalls: 2215 2022/09/21 14:36:19 code coverage: enabled 2022/09/21 14:36:19 comparison tracing: enabled 2022/09/21 14:36:19 extra coverage: enabled 2022/09/21 14:36:19 setuid sandbox: enabled 2022/09/21 14:36:19 namespace sandbox: enabled 2022/09/21 14:36:19 Android sandbox: enabled 2022/09/21 14:36:19 fault injection: enabled 2022/09/21 14:36:19 leak checking: enabled 2022/09/21 14:36:19 net packet injection: enabled 2022/09/21 14:36:19 net device setup: enabled 2022/09/21 14:36:19 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/21 14:36:19 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/21 14:36:19 USB emulation: enabled 2022/09/21 14:36:19 hci packet injection: enabled 2022/09/21 14:36:19 wifi device emulation: failed to parse kernel version (6.0.0-rc6-next-20220921) 2022/09/21 14:36:19 802.15.4 emulation: enabled 2022/09/21 14:36:19 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/21 14:36:20 fetching corpus: 50, signal 19639/23229 (executing program) 2022/09/21 14:36:20 fetching corpus: 100, signal 36296/41264 (executing program) 2022/09/21 14:36:20 fetching corpus: 150, signal 51397/57520 (executing program) 2022/09/21 14:36:20 fetching corpus: 200, signal 59162/66437 (executing program) 2022/09/21 14:36:20 fetching corpus: 250, signal 64183/72684 (executing program) 2022/09/21 14:36:20 fetching corpus: 300, signal 69687/79281 (executing program) 2022/09/21 14:36:20 fetching corpus: 350, signal 71913/82731 (executing program) 2022/09/21 14:36:20 fetching corpus: 400, signal 79631/91167 (executing program) 2022/09/21 14:36:21 fetching corpus: 450, signal 83263/95731 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program) 2022/09/21 14:36:33 fetching corpus: 5250, signal 212372/219157 (executing program) 2022/09/21 14:36:33 fetching corpus: 5300, signal 213029/219163 (executing program) 2022/09/21 14:36:33 fetching corpus: 5311, signal 213142/219163 (executing program) 2022/09/21 14:36:33 fetching corpus: 5311, signal 213142/219163 (executing program) 2022/09/21 14:36:35 starting 8 fuzzer processes 14:36:35 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$netlink(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f000000a940)=[{&(0x7f00000001c0)={0x1c, 0x5e, 0x1, 0x0, 0x0, "", [@nested={0xc, 0x0, 0x0, 0x1, [@typed={0x8, 0x0, 0x0, 0x0, @uid}]}]}, 0x1c}], 0x1}, 0x0) 14:36:35 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) getsockopt$sock_int(r0, 0x1, 0xa, 0x0, &(0x7f00000000c0)) 14:36:35 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x2, &(0x7f0000000000), 0x4) 14:36:35 executing program 2: syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0) perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x2, 0x32261, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x101042, 0x0) r2 = getgid() ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000300)=ANY=[@ANYBLOB="010000590001000010d81ecdf7b7bb390872da623f7100180000f8a116d1554cf2e959e3ca72cfd8c4d3ba33a7d70ec7931de68c91fe53971bbd75564715976acbd2b250f541a4c3c1f765cb81db7f69f98db59a8bc13e3a7e4ae6f104a324142a967f4beb5133bdf781b78460bb094b0cce6f443804e1e30792c05f725458580493a58df65d74bcf9ea1f0202b54db0dc55b2d8485bf340f996cee758159be72dfa", @ANYRES32, @ANYRES32=0xee00, @ANYRES32=r2, @ANYBLOB='./file0\x00']) fcntl$dupfd(r0, 0x0, r1) r3 = socket$inet_udp(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r3, 0x8914, &(0x7f0000000000)={'lo\x00'}) mmap$IORING_OFF_CQ_RING(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x7, 0x50, r1, 0x8000000) mmap$IORING_OFF_SQES(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x1, 0x1010, 0xffffffffffffffff, 0x10000000) sendmsg$IPVS_CMD_GET_DAEMON(r1, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x7c, 0x0, 0x400, 0x70bd2c, 0x25dfdbff, {}, [@IPVS_CMD_ATTR_DEST={0x60, 0x2, 0x0, 0x1, [@IPVS_DEST_ATTR_TUN_PORT={0x6, 0xe, 0x4e23}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x1}, @IPVS_DEST_ATTR_TUN_FLAGS={0x6, 0xf, 0x8001}, @IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x9}, @IPVS_DEST_ATTR_TUN_PORT={0x6, 0xe, 0x4e22}, @IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3, 0x3}, @IPVS_DEST_ATTR_FWD_METHOD={0x8}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x6, 0xb, 0xa}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x1}, @IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv6=@rand_addr=' \x01\x00'}]}, @IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x5}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000040}, 0x80) perf_event_open(&(0x7f0000001840)={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={&(0x7f0000001800), 0xd}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x3) write(r1, &(0x7f0000000080)="01", 0x41030) 14:36:35 executing program 4: r0 = signalfd4(0xffffffffffffffff, &(0x7f0000000380), 0x8, 0x0) fgetxattr(r0, &(0x7f000000ecc0)=@known='security.apparmor\x00', 0x0, 0x0) 14:36:35 executing program 6: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) [ 66.579996] audit: type=1400 audit(1663770995.652:6): avc: denied { execmem } for pid=284 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 14:36:35 executing program 5: prctl$PR_MCE_KILL(0x21, 0x1, 0x1) 14:36:35 executing program 7: r0 = perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0x77, 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) r1 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r1, 0x107, 0x12, &(0x7f0000000040)={0x0, 0x6}, 0x4) setsockopt$packet_add_memb(0xffffffffffffffff, 0x107, 0x1, &(0x7f0000000000)={0x0, 0x3, 0x6, @link_local}, 0x10) close_range(r0, 0xffffffffffffffff, 0x0) [ 67.819688] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 67.821365] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 67.834270] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 67.835282] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 67.841572] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 67.843234] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 67.847567] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 67.849900] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 67.851472] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 67.886602] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 67.898483] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 67.899756] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 67.901665] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 67.904197] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 67.905589] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 67.906642] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 67.910574] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 67.912066] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 67.913373] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 67.914892] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 67.916534] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 67.917891] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 67.921897] Bluetooth: hci1: HCI_REQ-0x0c1a [ 67.921962] Bluetooth: hci5: HCI_REQ-0x0c1a [ 67.928118] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 67.930943] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 67.936242] Bluetooth: hci0: HCI_REQ-0x0c1a [ 67.947974] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 67.949381] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 67.951157] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 67.954543] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 67.956458] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 67.957871] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 67.958743] Bluetooth: hci6: HCI_REQ-0x0c1a [ 67.962263] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 67.971244] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 67.972978] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 67.977621] Bluetooth: hci7: HCI_REQ-0x0c1a [ 68.009124] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 68.010188] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 68.011626] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 68.012088] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 68.015892] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 68.017173] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 68.018744] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 68.022667] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 68.024733] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 68.026189] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 68.028384] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 68.028544] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 68.031053] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 68.032577] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 68.034218] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 68.039988] Bluetooth: hci3: HCI_REQ-0x0c1a [ 68.040909] Bluetooth: hci4: HCI_REQ-0x0c1a [ 68.052510] Bluetooth: hci2: HCI_REQ-0x0c1a [ 69.967635] Bluetooth: hci0: command 0x0409 tx timeout [ 69.968522] Bluetooth: hci6: command 0x0409 tx timeout [ 69.968683] Bluetooth: hci1: command 0x0409 tx timeout [ 70.031604] Bluetooth: hci7: command 0x0409 tx timeout [ 70.031624] Bluetooth: hci5: command 0x0409 tx timeout [ 70.095375] Bluetooth: hci2: command 0x0409 tx timeout [ 70.095988] Bluetooth: hci3: command 0x0409 tx timeout [ 70.096574] Bluetooth: hci4: command 0x0409 tx timeout [ 72.015367] Bluetooth: hci1: command 0x041b tx timeout [ 72.015889] Bluetooth: hci6: command 0x041b tx timeout [ 72.016395] Bluetooth: hci0: command 0x041b tx timeout [ 72.079429] Bluetooth: hci7: command 0x041b tx timeout [ 72.079864] Bluetooth: hci5: command 0x041b tx timeout [ 72.143356] Bluetooth: hci4: command 0x041b tx timeout [ 72.143796] Bluetooth: hci3: command 0x041b tx timeout [ 72.144212] Bluetooth: hci2: command 0x041b tx timeout [ 74.063403] Bluetooth: hci0: command 0x040f tx timeout [ 74.064228] Bluetooth: hci6: command 0x040f tx timeout [ 74.065041] Bluetooth: hci1: command 0x040f tx timeout [ 74.127394] Bluetooth: hci5: command 0x040f tx timeout [ 74.128128] Bluetooth: hci7: command 0x040f tx timeout [ 74.191463] Bluetooth: hci2: command 0x040f tx timeout [ 74.192197] Bluetooth: hci3: command 0x040f tx timeout [ 74.192968] Bluetooth: hci4: command 0x040f tx timeout [ 76.111552] Bluetooth: hci1: command 0x0419 tx timeout [ 76.112471] Bluetooth: hci6: command 0x0419 tx timeout [ 76.113280] Bluetooth: hci0: command 0x0419 tx timeout [ 76.175411] Bluetooth: hci7: command 0x0419 tx timeout [ 76.176192] Bluetooth: hci5: command 0x0419 tx timeout [ 76.239420] Bluetooth: hci4: command 0x0419 tx timeout [ 76.240169] Bluetooth: hci3: command 0x0419 tx timeout [ 76.241137] Bluetooth: hci2: command 0x0419 tx timeout 14:37:31 executing program 6: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) 14:37:31 executing program 6: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) 14:37:31 executing program 6: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) 14:37:32 executing program 3: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) 14:37:32 executing program 6: r0 = mq_open(&(0x7f00000056c0)='syz1\x00', 0x842, 0x0, 0x0) ftruncate(r0, 0xffffff7f) 14:37:32 executing program 3: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) 14:37:32 executing program 6: r0 = mq_open(&(0x7f00000056c0)='syz1\x00', 0x842, 0x0, 0x0) ftruncate(r0, 0xffffff7f) 14:37:32 executing program 3: r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000040)='/sys/kernel/slab', 0x0, 0x0) getdents(r0, &(0x7f0000000080)=""/247, 0xf7) getdents64(r0, &(0x7f0000000240)=""/226, 0x20000258) [ 124.047623] audit: type=1400 audit(1663771053.120:7): avc: denied { open } for pid=3700 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 124.050150] audit: type=1400 audit(1663771053.120:8): avc: denied { kernel } for pid=3700 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 124.062960] ------------[ cut here ]------------ [ 124.062983] [ 124.062986] ====================================================== [ 124.062990] WARNING: possible circular locking dependency detected [ 124.062995] 6.0.0-rc6-next-20220921 #1 Not tainted [ 124.063001] ------------------------------------------------------ [ 124.063005] syz-executor.2/3702 is trying to acquire lock: [ 124.063012] ffffffff853faab8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 124.063054] [ 124.063054] but task is already holding lock: [ 124.063057] ffff88800901b420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 124.063087] [ 124.063087] which lock already depends on the new lock. [ 124.063087] [ 124.063091] [ 124.063091] the existing dependency chain (in reverse order) is: [ 124.063095] [ 124.063095] -> #3 (&ctx->lock){....}-{2:2}: [ 124.063110] _raw_spin_lock+0x2a/0x40 [ 124.063130] __perf_event_task_sched_out+0x53b/0x18d0 [ 124.063143] __schedule+0xedd/0x2470 [ 124.063157] schedule+0xda/0x1b0 [ 124.063171] exit_to_user_mode_prepare+0x114/0x1a0 [ 124.063183] syscall_exit_to_user_mode+0x19/0x40 [ 124.063196] do_syscall_64+0x48/0x90 [ 124.063214] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 124.063226] [ 124.063226] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 124.063241] _raw_spin_lock_nested+0x30/0x40 [ 124.063260] raw_spin_rq_lock_nested+0x1e/0x30 [ 124.063275] task_fork_fair+0x63/0x4d0 [ 124.063296] sched_cgroup_fork+0x3d0/0x540 [ 124.063311] copy_process+0x4183/0x6e20 [ 124.063323] kernel_clone+0xe7/0x890 [ 124.063333] user_mode_thread+0xad/0xf0 [ 124.063344] rest_init+0x24/0x250 [ 124.063355] arch_call_rest_init+0xf/0x14 [ 124.063373] start_kernel+0x4c1/0x4e6 [ 124.063388] secondary_startup_64_no_verify+0xe0/0xeb [ 124.063403] [ 124.063403] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 124.063417] _raw_spin_lock_irqsave+0x39/0x60 [ 124.063437] try_to_wake_up+0xab/0x1930 [ 124.063452] up+0x75/0xb0 [ 124.063466] __up_console_sem+0x6e/0x80 [ 124.063484] console_unlock+0x46a/0x590 [ 124.063501] do_con_write+0xc05/0x1d50 [ 124.063518] con_write+0x21/0x40 [ 124.063528] n_tty_write+0x4d4/0xfe0 [ 124.063543] file_tty_write.constprop.0+0x49c/0x8f0 [ 124.063556] vfs_write+0x9c3/0xd90 [ 124.063577] ksys_write+0x127/0x250 [ 124.063596] do_syscall_64+0x3b/0x90 [ 124.063613] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 124.063625] [ 124.063625] -> #0 ((console_sem).lock){....}-{2:2}: [ 124.063640] __lock_acquire+0x2a02/0x5e70 [ 124.063659] lock_acquire+0x1a2/0x530 [ 124.063677] _raw_spin_lock_irqsave+0x39/0x60 [ 124.063697] down_trylock+0xe/0x70 [ 124.063712] __down_trylock_console_sem+0x3b/0xd0 [ 124.063729] vprintk_emit+0x16b/0x560 [ 124.063748] vprintk+0x84/0xa0 [ 124.063765] _printk+0xba/0xf1 [ 124.063777] report_bug.cold+0x72/0xab [ 124.063794] handle_bug+0x3c/0x70 [ 124.063811] exc_invalid_op+0x14/0x50 [ 124.063829] asm_exc_invalid_op+0x16/0x20 [ 124.063840] group_sched_out.part.0+0x2c7/0x460 [ 124.063852] ctx_sched_out+0x8f1/0xc10 [ 124.063862] __perf_event_task_sched_out+0x6d0/0x18d0 [ 124.063875] __schedule+0xedd/0x2470 [ 124.063889] schedule+0xda/0x1b0 [ 124.063902] exit_to_user_mode_prepare+0x114/0x1a0 [ 124.063913] syscall_exit_to_user_mode+0x19/0x40 [ 124.063925] do_syscall_64+0x48/0x90 [ 124.063943] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 124.063955] [ 124.063955] other info that might help us debug this: [ 124.063955] [ 124.063958] Chain exists of: [ 124.063958] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 124.063958] [ 124.063974] Possible unsafe locking scenario: [ 124.063974] [ 124.063976] CPU0 CPU1 [ 124.063979] ---- ---- [ 124.063981] lock(&ctx->lock); [ 124.063988] lock(&rq->__lock); [ 124.063995] lock(&ctx->lock); [ 124.064002] lock((console_sem).lock); [ 124.064008] [ 124.064008] *** DEADLOCK *** [ 124.064008] [ 124.064010] 2 locks held by syz-executor.2/3702: [ 124.064017] #0: ffff88806ce37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 124.064048] #1: ffff88800901b420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 124.064077] [ 124.064077] stack backtrace: [ 124.064081] CPU: 0 PID: 3702 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220921 #1 [ 124.064094] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 124.064103] Call Trace: [ 124.064107] [ 124.064111] dump_stack_lvl+0x8b/0xb3 [ 124.064130] check_noncircular+0x263/0x2e0 [ 124.064148] ? format_decode+0x26c/0xb50 [ 124.064166] ? print_circular_bug+0x450/0x450 [ 124.064185] ? enable_ptr_key_workfn+0x20/0x20 [ 124.064202] ? format_decode+0x26c/0xb50 [ 124.064219] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 124.064239] __lock_acquire+0x2a02/0x5e70 [ 124.064262] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 124.064286] lock_acquire+0x1a2/0x530 [ 124.064305] ? down_trylock+0xe/0x70 [ 124.064322] ? lock_release+0x750/0x750 [ 124.064345] ? vprintk+0x84/0xa0 [ 124.064364] _raw_spin_lock_irqsave+0x39/0x60 [ 124.064384] ? down_trylock+0xe/0x70 [ 124.064401] down_trylock+0xe/0x70 [ 124.064417] ? vprintk+0x84/0xa0 [ 124.064436] __down_trylock_console_sem+0x3b/0xd0 [ 124.064454] vprintk_emit+0x16b/0x560 [ 124.064475] vprintk+0x84/0xa0 [ 124.064494] _printk+0xba/0xf1 [ 124.064505] ? record_print_text.cold+0x16/0x16 [ 124.064521] ? report_bug.cold+0x66/0xab [ 124.064540] ? group_sched_out.part.0+0x2c7/0x460 [ 124.064552] report_bug.cold+0x72/0xab [ 124.064571] handle_bug+0x3c/0x70 [ 124.064589] exc_invalid_op+0x14/0x50 [ 124.064608] asm_exc_invalid_op+0x16/0x20 [ 124.064621] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 124.064635] Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 2b 12 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 124.064648] RSP: 0018:ffff8880417a7c48 EFLAGS: 00010006 [ 124.064657] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 124.064665] RDX: ffff888018355040 RSI: ffffffff815663a7 RDI: 0000000000000005 [ 124.064674] RBP: ffff888008668000 R08: 0000000000000005 R09: 0000000000000001 [ 124.064682] R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88800901b400 [ 124.064690] R13: ffff88806ce3d140 R14: ffffffff8547cf80 R15: 0000000000000002 [ 124.064702] ? group_sched_out.part.0+0x2c7/0x460 [ 124.064715] ? group_sched_out.part.0+0x2c7/0x460 [ 124.064729] ctx_sched_out+0x8f1/0xc10 [ 124.064742] __perf_event_task_sched_out+0x6d0/0x18d0 [ 124.064759] ? lock_is_held_type+0xd7/0x130 [ 124.064772] ? __perf_cgroup_move+0x160/0x160 [ 124.064785] ? set_next_entity+0x304/0x550 [ 124.064804] ? update_curr+0x267/0x740 [ 124.064824] ? lock_is_held_type+0xd7/0x130 [ 124.064838] __schedule+0xedd/0x2470 [ 124.064855] ? io_schedule_timeout+0x150/0x150 [ 124.064872] ? rcu_read_lock_sched_held+0x3e/0x80 [ 124.064894] schedule+0xda/0x1b0 [ 124.064909] exit_to_user_mode_prepare+0x114/0x1a0 [ 124.064921] syscall_exit_to_user_mode+0x19/0x40 [ 124.064934] do_syscall_64+0x48/0x90 [ 124.064953] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 124.064965] RIP: 0033:0x7ff5a7291b19 [ 124.064974] 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 [ 124.064986] RSP: 002b:00007ff5a4807218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 124.064997] RAX: 0000000000000001 RBX: 00007ff5a73a4f68 RCX: 00007ff5a7291b19 [ 124.065005] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ff5a73a4f6c [ 124.065013] RBP: 00007ff5a73a4f60 R08: 000000000000000e R09: 0000000000000000 [ 124.065021] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ff5a73a4f6c [ 124.065028] R13: 00007ffe93e3beff R14: 00007ff5a4807300 R15: 0000000000022000 [ 124.065042] [ 124.120623] WARNING: CPU: 0 PID: 3702 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 124.121292] Modules linked in: [ 124.121533] CPU: 0 PID: 3702 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220921 #1 [ 124.122115] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 124.122916] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 124.123305] Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 2b 12 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 124.124582] RSP: 0018:ffff8880417a7c48 EFLAGS: 00010006 [ 124.124963] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 124.125468] RDX: ffff888018355040 RSI: ffffffff815663a7 RDI: 0000000000000005 [ 124.125974] RBP: ffff888008668000 R08: 0000000000000005 R09: 0000000000000001 [ 124.126477] R10: 0000000000000000 R11: ffffffff865b001b R12: ffff88800901b400 [ 124.126999] R13: ffff88806ce3d140 R14: ffffffff8547cf80 R15: 0000000000000002 [ 124.127512] FS: 00007ff5a4807700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 124.128093] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.128507] CR2: 00007f3d56939610 CR3: 000000001d8e8000 CR4: 0000000000350ef0 [ 124.129014] Call Trace: [ 124.129200] [ 124.129368] ctx_sched_out+0x8f1/0xc10 [ 124.129662] __perf_event_task_sched_out+0x6d0/0x18d0 [ 124.130041] ? lock_is_held_type+0xd7/0x130 [ 124.130362] ? __perf_cgroup_move+0x160/0x160 [ 124.130698] ? set_next_entity+0x304/0x550 [ 124.131028] ? update_curr+0x267/0x740 [ 124.131329] ? lock_is_held_type+0xd7/0x130 [ 124.131644] __schedule+0xedd/0x2470 [ 124.131926] ? io_schedule_timeout+0x150/0x150 [ 124.132279] ? rcu_read_lock_sched_held+0x3e/0x80 [ 124.132661] schedule+0xda/0x1b0 [ 124.132930] exit_to_user_mode_prepare+0x114/0x1a0 [ 124.133301] syscall_exit_to_user_mode+0x19/0x40 [ 124.133662] do_syscall_64+0x48/0x90 [ 124.133953] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 124.134351] RIP: 0033:0x7ff5a7291b19 [ 124.134637] 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 [ 124.135977] RSP: 002b:00007ff5a4807218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 124.136539] RAX: 0000000000000001 RBX: 00007ff5a73a4f68 RCX: 00007ff5a7291b19 [ 124.137062] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ff5a73a4f6c [ 124.137590] RBP: 00007ff5a73a4f60 R08: 000000000000000e R09: 0000000000000000 [ 124.138125] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ff5a73a4f6c [ 124.138646] R13: 00007ffe93e3beff R14: 00007ff5a4807300 R15: 0000000000022000 [ 124.139192] [ 124.139367] irq event stamp: 706 [ 124.139619] hardirqs last enabled at (705): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 124.140317] hardirqs last disabled at (706): [] __schedule+0x1225/0x2470 [ 124.140937] softirqs last enabled at (586): [] __irq_exit_rcu+0x11b/0x180 [ 124.141560] softirqs last disabled at (577): [] __irq_exit_rcu+0x11b/0x180 [ 124.142184] ---[ end trace 0000000000000000 ]--- [ 129.127511] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 129.128877] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 129.131136] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 129.134054] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 129.138449] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 129.140947] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 129.144700] Bluetooth: hci6: HCI_REQ-0x0c1a [ 129.159769] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 129.162170] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 129.175626] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 129.180725] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 129.188221] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 129.192631] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 129.200025] Bluetooth: hci1: HCI_REQ-0x0c1a [ 131.151357] Bluetooth: hci6: command 0x0409 tx timeout [ 131.151365] Bluetooth: hci4: Opcode 0x c03 failed: -110 [ 131.154026] Bluetooth: hci2: Opcode 0x c03 failed: -110 [ 131.216385] Bluetooth: hci1: command 0x0409 tx timeout [ 133.199386] Bluetooth: hci6: command 0x041b tx timeout [ 133.263330] Bluetooth: hci1: command 0x041b tx timeout VM DIAGNOSIS: 14:37:33 Registers: info registers vcpu 0 RAX=0000000000000030 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b1c91 RDI=ffffffff87645ba0 RBP=ffffffff87645b60 RSP=ffff8880417a7698 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000030 R11=0000000000000001 R12=0000000000000030 R13=ffffffff87645b60 R14=0000000000000010 R15=ffffffff822b1c80 RIP=ffffffff822b1ce9 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 00007ff5a4807700 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=00007f3d56939610 CR3=000000001d8e8000 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 ffffffffffff0000 0000000000000000 YMM01=0000000000000000 0000000000000000 2323232323232323 2323232323232323 YMM02=0000000000000000 0000000000000000 ffffffffffffffff ffffffffffffffff YMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM04=0000000000000000 0000000000000000 ffffffffffff0000 0000000000000000 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=fffffbfff0b6089a RBX=fffffbfff0b6089b RCX=ffffffff812a332f RDX=0000000000000001 RSI=0000000000000008 RDI=ffffffff85b044d0 RBP=fffffbfff0b6089a RSP=ffff8880416373d8 R8 =0000000000000000 R9 =ffffffff85b044d7 R10=fffffbfff0b6089a R11=000000000003603d R12=0000000000000002 R13=0000000000000000 R14=ffffffff854073a0 R15=0000000000000000 RIP=ffffffff817889b9 RFL=00000283 [--S---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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fe162454540 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=00007fe1625118b0 CR3=0000000019e6e000 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 000000ff00000000 00000000000000ff YMM01=0000000000000000 0000000000000000 ffffff0000ff00ff ffffffffffffff00 YMM02=0000000000000000 0000000000000000 494c4700362e322e 325f4342494c4700 YMM03=0000000000000000 0000000000000000 0000000000000000 0000000000004700 YMM04=0000000000000000 0000000000000000 4342494c4700362e 322e325f4342494c 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