Warning: Permanently added '[localhost]:52500' (ECDSA) to the list of known hosts. 2022/09/13 14:36:44 fuzzer started 2022/09/13 14:36:44 dialing manager at localhost:36597 syzkaller login: [ 36.171937] cgroup: Unknown subsys name 'net' [ 36.250591] cgroup: Unknown subsys name 'rlimit' 2022/09/13 14:36:57 syscalls: 2215 2022/09/13 14:36:57 code coverage: enabled 2022/09/13 14:36:57 comparison tracing: enabled 2022/09/13 14:36:57 extra coverage: enabled 2022/09/13 14:36:57 setuid sandbox: enabled 2022/09/13 14:36:57 namespace sandbox: enabled 2022/09/13 14:36:57 Android sandbox: enabled 2022/09/13 14:36:57 fault injection: enabled 2022/09/13 14:36:57 leak checking: enabled 2022/09/13 14:36:57 net packet injection: enabled 2022/09/13 14:36:57 net device setup: enabled 2022/09/13 14:36:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/13 14:36:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/13 14:36:57 USB emulation: enabled 2022/09/13 14:36:57 hci packet injection: enabled 2022/09/13 14:36:57 wifi device emulation: failed to parse kernel version (6.0.0-rc5-next-20220913) 2022/09/13 14:36:57 802.15.4 emulation: enabled 2022/09/13 14:36:57 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/13 14:36:57 fetching corpus: 50, signal 33893/37239 (executing program) 2022/09/13 14:36:58 fetching corpus: 100, signal 49082/53609 (executing program) 2022/09/13 14:36:58 fetching corpus: 150, signal 56229/62001 (executing program) 2022/09/13 14:36:58 fetching corpus: 200, signal 63756/70612 (executing program) 2022/09/13 14:36:58 fetching corpus: 250, signal 71751/79596 (executing program) 2022/09/13 14:36:58 fetching corpus: 300, signal 77450/86276 (executing program) 2022/09/13 14:36:58 fetching corpus: 350, signal 81416/91232 (executing program) 2022/09/13 14:36:59 fetching corpus: 400, signal 84461/95272 (executing program) 2022/09/13 14:36:59 fetching corpus: 450, signal 87914/99607 (executing program) 2022/09/13 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(executing program) 2022/09/13 14:37:06 fetching corpus: 2900, signal 179844/197594 (executing program) 2022/09/13 14:37:06 fetching corpus: 2950, signal 180702/198256 (executing program) 2022/09/13 14:37:06 fetching corpus: 3000, signal 181589/198936 (executing program) 2022/09/13 14:37:07 fetching corpus: 3050, signal 182901/199745 (executing program) 2022/09/13 14:37:07 fetching corpus: 3100, signal 183737/200374 (executing program) 2022/09/13 14:37:07 fetching corpus: 3150, signal 184684/201004 (executing program) 2022/09/13 14:37:07 fetching corpus: 3200, signal 185942/201746 (executing program) 2022/09/13 14:37:07 fetching corpus: 3250, signal 186945/202356 (executing program) 2022/09/13 14:37:07 fetching corpus: 3300, signal 188171/203029 (executing program) 2022/09/13 14:37:08 fetching corpus: 3350, signal 189345/203647 (executing program) 2022/09/13 14:37:08 fetching corpus: 3400, signal 189773/203984 (executing program) 2022/09/13 14:37:08 fetching corpus: 3450, signal 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corpus: 4147, signal 204147/211160 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211248 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211327 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211403 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211483 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211553 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211621 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211694 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211787 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211862 (executing program) 2022/09/13 14:37:10 fetching corpus: 4147, signal 204147/211862 (executing program) 2022/09/13 14:37:13 starting 8 fuzzer processes 14:37:13 executing program 0: syz_mount_image$nfs(&(0x7f0000000080), &(0x7f00000000c0)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)={[{'\x01\x00\x12\xff\x0fm'}]}) 14:37:13 executing program 1: sendmsg$NL80211_CMD_SET_NOACK_MAP(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16, @ANYBLOB="0105000000000000000076"], 0x24}}, 0x0) r0 = syz_io_uring_setup(0x46ac, &(0x7f0000000080), &(0x7f0000ffb000/0x2000)=nil, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000000100), &(0x7f00000003c0)) r1 = dup2(r0, r0) io_uring_register$IORING_REGISTER_FILES(r1, 0x16, &(0x7f0000000000)=[0xffffffffffffffff], 0x1) 14:37:13 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='map_files\x00') openat(r0, &(0x7f0000000140)='./file0\x00', 0x0, 0x0) 14:37:13 executing program 4: perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9, 0x1, @perf_config_ext={0x3, 0x2}, 0x4800, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffe, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) 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={&(0x7f0000000040), 0xb}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @loopback}}, 0x1c) connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4e23, 0xaeca, @mcast2, 0x6}, 0x1c) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0x1, 0x4) connect$inet6(r0, &(0x7f00000000c0)={0xa, 0x0, 0x0, @empty}, 0x1c) mmap$IORING_OFF_SQ_RING(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x1000004, 0x2811, 0xffffffffffffffff, 0x0) 14:37:13 executing program 3: ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$LOOP_GET_STATUS64(r0, 0x4c05, 0x0) io_uring_setup(0x81, &(0x7f0000000300)={0x0, 0x54cb, 0x1}) io_uring_register$IORING_REGISTER_FILES_UPDATE(0xffffffffffffffff, 0x6, &(0x7f0000000880)={0x200, 0x0, &(0x7f0000000840)=[0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}, 0x4) [ 64.812218] audit: type=1400 audit(1663079833.619:6): avc: denied { execmem } for pid=282 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 14:37:13 executing program 5: recvmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x20fd902ee427574f, 0x0) 14:37:13 executing program 6: r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000040)=0x1b) r1 = syz_open_dev$tty20(0xc, 0x4, 0x1) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r1, 0x81f8943c, 0x0) 14:37:13 executing program 7: syz_mount_image$iso9660(&(0x7f0000000540), &(0x7f0000000100)='./file0\x00', 0x0, 0x1, &(0x7f0000000200)=[{&(0x7f0000010600)="ff4344303031", 0x6, 0x8800}], 0x0, &(0x7f0000000680)=ANY=[]) [ 66.116823] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 66.118759] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 66.120259] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 66.123177] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 66.125010] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 66.126480] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 66.131142] Bluetooth: hci0: HCI_REQ-0x0c1a [ 66.189131] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 66.192810] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 66.195628] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 66.199901] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 66.201848] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 66.204139] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 66.208604] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 66.213068] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 66.216494] Bluetooth: hci1: HCI_REQ-0x0c1a [ 66.219914] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 66.220755] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 66.231523] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 66.232840] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 66.233914] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 66.252662] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 66.254552] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 66.256875] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 66.258500] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 66.262681] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 66.264018] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 66.265184] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 66.266283] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 66.270200] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 66.271110] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 66.271465] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 66.273757] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 66.274577] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 66.275246] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 66.279000] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 66.282707] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 66.284046] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 66.289205] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 66.290485] Bluetooth: hci3: HCI_REQ-0x0c1a [ 66.290736] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 66.293612] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 66.295582] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 66.299568] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 66.305764] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 66.307977] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 66.308105] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 66.315465] Bluetooth: hci5: HCI_REQ-0x0c1a [ 66.319256] Bluetooth: hci2: HCI_REQ-0x0c1a [ 66.327283] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 66.328502] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 66.343642] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 66.344987] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 66.356855] Bluetooth: hci4: HCI_REQ-0x0c1a [ 66.372778] Bluetooth: hci7: HCI_REQ-0x0c1a [ 66.373246] Bluetooth: hci6: HCI_REQ-0x0c1a [ 68.204680] Bluetooth: hci0: command 0x0409 tx timeout [ 68.268388] Bluetooth: hci1: command 0x0409 tx timeout [ 68.332546] Bluetooth: hci2: command 0x0409 tx timeout [ 68.333028] Bluetooth: hci5: command 0x0409 tx timeout [ 68.333507] Bluetooth: hci3: command 0x0409 tx timeout [ 68.395511] Bluetooth: hci4: command 0x0409 tx timeout [ 68.459442] Bluetooth: hci6: command 0x0409 tx timeout [ 68.459949] Bluetooth: hci7: command 0x0409 tx timeout [ 70.251537] Bluetooth: hci0: command 0x041b tx timeout [ 70.315426] Bluetooth: hci1: command 0x041b tx timeout [ 70.379705] Bluetooth: hci3: command 0x041b tx timeout [ 70.380791] Bluetooth: hci5: command 0x041b tx timeout [ 70.382281] Bluetooth: hci2: command 0x041b tx timeout [ 70.444254] Bluetooth: hci4: command 0x041b tx timeout [ 70.507510] Bluetooth: hci7: command 0x041b tx timeout [ 70.508917] Bluetooth: hci6: command 0x041b tx timeout [ 72.300474] Bluetooth: hci0: command 0x040f tx timeout [ 72.364421] Bluetooth: hci1: command 0x040f tx timeout [ 72.427413] Bluetooth: hci2: command 0x040f tx timeout [ 72.427850] Bluetooth: hci5: command 0x040f tx timeout [ 72.428246] Bluetooth: hci3: command 0x040f tx timeout [ 72.491529] Bluetooth: hci4: command 0x040f tx timeout [ 72.556401] Bluetooth: hci6: command 0x040f tx timeout [ 72.556855] Bluetooth: hci7: command 0x040f tx timeout [ 74.347435] Bluetooth: hci0: command 0x0419 tx timeout [ 74.412436] Bluetooth: hci1: command 0x0419 tx timeout [ 74.475405] Bluetooth: hci3: command 0x0419 tx timeout [ 74.475878] Bluetooth: hci5: command 0x0419 tx timeout [ 74.476293] Bluetooth: hci2: command 0x0419 tx timeout [ 74.540443] Bluetooth: hci4: command 0x0419 tx timeout [ 74.603470] Bluetooth: hci7: command 0x0419 tx timeout [ 74.604008] Bluetooth: hci6: command 0x0419 tx timeout 14:38:10 executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x22, 0x0, 0x410) 14:38:10 executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x22, 0x0, 0x410) 14:38:10 executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x22, 0x0, 0x410) 14:38:10 executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x22, 0x0, 0x410) 14:38:11 executing program 3: r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000240), 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT(r0, 0xc0bc5351, &(0x7f0000000000)={0x81, 0x0, 'client1\x00', 0x0, "17e14b6adf597130", "7a8acf5beb8a5c666bcea8243d0ad819d74a99f1f00b9b38e1df323dc042efb0"}) 14:38:11 executing program 3: r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000240), 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT(r0, 0xc0bc5351, &(0x7f0000000000)={0x81, 0x0, 'client1\x00', 0x0, "17e14b6adf597130", "7a8acf5beb8a5c666bcea8243d0ad819d74a99f1f00b9b38e1df323dc042efb0"}) 14:38:11 executing program 3: r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000240), 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT(r0, 0xc0bc5351, &(0x7f0000000000)={0x81, 0x0, 'client1\x00', 0x0, "17e14b6adf597130", "7a8acf5beb8a5c666bcea8243d0ad819d74a99f1f00b9b38e1df323dc042efb0"}) 14:38:11 executing program 3: r0 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000240), 0x0) ioctl$SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT(r0, 0xc0bc5351, &(0x7f0000000000)={0x81, 0x0, 'client1\x00', 0x0, "17e14b6adf597130", "7a8acf5beb8a5c666bcea8243d0ad819d74a99f1f00b9b38e1df323dc042efb0"}) [ 122.991032] loop7: detected capacity change from 0 to 136 [ 123.030810] ISOFS: Unable to identify CD-ROM format. [ 123.056141] loop7: detected capacity change from 0 to 136 [ 123.066777] ISOFS: Unable to identify CD-ROM format. [ 123.826505] audit: type=1400 audit(1663079892.632:7): avc: denied { open } for pid=3899 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 [ 123.828927] audit: type=1400 audit(1663079892.632:8): avc: denied { kernel } for pid=3899 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 [ 123.846361] ------------[ cut here ]------------ [ 123.846392] [ 123.846395] ====================================================== [ 123.846400] WARNING: possible circular locking dependency detected [ 123.846406] 6.0.0-rc5-next-20220913 #1 Not tainted [ 123.846415] ------------------------------------------------------ [ 123.846420] syz-executor.4/3901 is trying to acquire lock: [ 123.846429] ffffffff853fa878 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 123.846481] [ 123.846481] but task is already holding lock: [ 123.846485] ffff8880087c1c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.846523] [ 123.846523] which lock already depends on the new lock. [ 123.846523] [ 123.846528] [ 123.846528] the existing dependency chain (in reverse order) is: [ 123.846533] [ 123.846533] -> #3 (&ctx->lock){....}-{2:2}: [ 123.846553] _raw_spin_lock+0x2a/0x40 [ 123.846577] __perf_event_task_sched_out+0x53b/0x18d0 [ 123.846596] __schedule+0xedd/0x2470 [ 123.846612] schedule+0xda/0x1b0 [ 123.846626] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.846657] syscall_exit_to_user_mode+0x19/0x40 [ 123.846683] do_syscall_64+0x48/0x90 [ 123.846703] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.846727] [ 123.846727] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 123.846747] _raw_spin_lock_nested+0x30/0x40 [ 123.846768] raw_spin_rq_lock_nested+0x1e/0x30 [ 123.846787] task_fork_fair+0x63/0x4d0 [ 123.846812] sched_cgroup_fork+0x3d0/0x540 [ 123.846833] copy_process+0x3f9e/0x6df0 [ 123.846849] kernel_clone+0xe7/0x890 [ 123.846862] user_mode_thread+0xad/0xf0 [ 123.846877] rest_init+0x24/0x250 [ 123.846902] arch_call_rest_init+0xf/0x14 [ 123.846931] start_kernel+0x4c1/0x4e6 [ 123.846957] secondary_startup_64_no_verify+0xe0/0xeb [ 123.846978] [ 123.846978] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 123.846996] _raw_spin_lock_irqsave+0x39/0x60 [ 123.847018] try_to_wake_up+0xab/0x1920 [ 123.847037] up+0x75/0xb0 [ 123.847054] __up_console_sem+0x6e/0x80 [ 123.847077] console_unlock+0x46a/0x590 [ 123.847101] vt_ioctl+0x2822/0x2ca0 [ 123.847119] tty_ioctl+0x7c4/0x1700 [ 123.847136] __x64_sys_ioctl+0x19a/0x210 [ 123.847159] do_syscall_64+0x3b/0x90 [ 123.847179] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.847205] [ 123.847205] -> #0 ((console_sem).lock){....}-{2:2}: [ 123.847226] __lock_acquire+0x2a02/0x5e70 [ 123.847251] lock_acquire+0x1a2/0x530 [ 123.847275] _raw_spin_lock_irqsave+0x39/0x60 [ 123.847297] down_trylock+0xe/0x70 [ 123.847315] __down_trylock_console_sem+0x3b/0xd0 [ 123.847341] vprintk_emit+0x16b/0x560 [ 123.847370] vprintk+0x84/0xa0 [ 123.847394] _printk+0xba/0xf1 [ 123.847421] report_bug.cold+0x72/0xab [ 123.847440] handle_bug+0x3c/0x70 [ 123.847460] exc_invalid_op+0x14/0x50 [ 123.847480] asm_exc_invalid_op+0x16/0x20 [ 123.847506] group_sched_out.part.0+0x2c7/0x460 [ 123.847523] ctx_sched_out+0x8f1/0xc10 [ 123.847538] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.847557] __schedule+0xedd/0x2470 [ 123.847571] schedule+0xda/0x1b0 [ 123.847586] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.847615] syscall_exit_to_user_mode+0x19/0x40 [ 123.847641] do_syscall_64+0x48/0x90 [ 123.847661] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.847687] [ 123.847687] other info that might help us debug this: [ 123.847687] [ 123.847692] Chain exists of: [ 123.847692] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 123.847692] [ 123.847714] Possible unsafe locking scenario: [ 123.847714] [ 123.847718] CPU0 CPU1 [ 123.847722] ---- ---- [ 123.847725] lock(&ctx->lock); [ 123.847734] lock(&rq->__lock); [ 123.847744] lock(&ctx->lock); [ 123.847753] lock((console_sem).lock); [ 123.847761] [ 123.847761] *** DEADLOCK *** [ 123.847761] [ 123.847764] 2 locks held by syz-executor.4/3901: [ 123.847775] #0: ffff88806cf37cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 123.847819] #1: ffff8880087c1c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.847862] [ 123.847862] stack backtrace: [ 123.847866] CPU: 1 PID: 3901 Comm: syz-executor.4 Not tainted 6.0.0-rc5-next-20220913 #1 [ 123.847886] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.847898] Call Trace: [ 123.847903] [ 123.847909] dump_stack_lvl+0x8b/0xb3 [ 123.847932] check_noncircular+0x263/0x2e0 [ 123.847958] ? format_decode+0x26c/0xb50 [ 123.847981] ? print_circular_bug+0x450/0x450 [ 123.848008] ? enable_ptr_key_workfn+0x20/0x20 [ 123.848031] ? format_decode+0x26c/0xb50 [ 123.848055] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 123.848083] __lock_acquire+0x2a02/0x5e70 [ 123.848117] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 123.848153] lock_acquire+0x1a2/0x530 [ 123.848180] ? down_trylock+0xe/0x70 [ 123.848203] ? rcu_read_unlock+0x40/0x40 [ 123.848236] ? vprintk+0x84/0xa0 [ 123.848264] _raw_spin_lock_irqsave+0x39/0x60 [ 123.848288] ? down_trylock+0xe/0x70 [ 123.848308] down_trylock+0xe/0x70 [ 123.848328] ? vprintk+0x84/0xa0 [ 123.848354] __down_trylock_console_sem+0x3b/0xd0 [ 123.848381] vprintk_emit+0x16b/0x560 [ 123.848410] vprintk+0x84/0xa0 [ 123.848437] _printk+0xba/0xf1 [ 123.848464] ? record_print_text.cold+0x16/0x16 [ 123.848499] ? report_bug.cold+0x66/0xab [ 123.848521] ? group_sched_out.part.0+0x2c7/0x460 [ 123.848538] report_bug.cold+0x72/0xab [ 123.848561] handle_bug+0x3c/0x70 [ 123.848582] exc_invalid_op+0x14/0x50 [ 123.848604] asm_exc_invalid_op+0x16/0x20 [ 123.848631] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.848650] 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 [ 123.848665] RSP: 0018:ffff8880186dfc48 EFLAGS: 00010006 [ 123.848677] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.848688] RDX: ffff888040425040 RSI: ffffffff81566027 RDI: 0000000000000005 [ 123.848700] RBP: ffff888040fa8000 R08: 0000000000000005 R09: 0000000000000001 [ 123.848710] R10: 0000000000000000 R11: ffffffff865aa05b R12: ffff8880087c1c00 [ 123.848722] R13: ffff88806cf3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 123.848736] ? group_sched_out.part.0+0x2c7/0x460 [ 123.848754] ? group_sched_out.part.0+0x2c7/0x460 [ 123.848773] ctx_sched_out+0x8f1/0xc10 [ 123.848791] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.848811] ? lock_is_held_type+0xd7/0x130 [ 123.848838] ? __perf_cgroup_move+0x160/0x160 [ 123.848855] ? set_next_entity+0x304/0x550 [ 123.848882] ? update_curr+0x267/0x740 [ 123.848908] ? lock_is_held_type+0xd7/0x130 [ 123.848936] __schedule+0xedd/0x2470 [ 123.848956] ? io_schedule_timeout+0x150/0x150 [ 123.848976] ? __x64_sys_futex_time32+0x480/0x480 [ 123.848997] schedule+0xda/0x1b0 [ 123.849015] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.849046] syscall_exit_to_user_mode+0x19/0x40 [ 123.849074] do_syscall_64+0x48/0x90 [ 123.849095] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.849123] RIP: 0033:0x7ffa746f9b19 [ 123.849136] 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 [ 123.849153] RSP: 002b:00007ffa71c6f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.849170] RAX: 0000000000000001 RBX: 00007ffa7480cf68 RCX: 00007ffa746f9b19 [ 123.849182] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ffa7480cf6c [ 123.849194] RBP: 00007ffa7480cf60 R08: 000000000000000e R09: 0000000000000000 [ 123.849205] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffa7480cf6c [ 123.849217] R13: 00007ffdc028590f R14: 00007ffa71c6f300 R15: 0000000000022000 [ 123.849237] [ 123.905011] WARNING: CPU: 1 PID: 3901 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 123.905693] Modules linked in: [ 123.905952] CPU: 1 PID: 3901 Comm: syz-executor.4 Not tainted 6.0.0-rc5-next-20220913 #1 [ 123.906545] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.907363] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.907764] 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 [ 123.909083] RSP: 0018:ffff8880186dfc48 EFLAGS: 00010006 [ 123.909483] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.910013] RDX: ffff888040425040 RSI: ffffffff81566027 RDI: 0000000000000005 [ 123.910543] RBP: ffff888040fa8000 R08: 0000000000000005 R09: 0000000000000001 [ 123.911068] R10: 0000000000000000 R11: ffffffff865aa05b R12: ffff8880087c1c00 [ 123.911595] R13: ffff88806cf3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 123.912115] FS: 00007ffa71c6f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 123.912706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.913130] CR2: 00007f0262d8b4a1 CR3: 00000000401de000 CR4: 0000000000350ee0 [ 123.913653] Call Trace: [ 123.913847] [ 123.914035] ctx_sched_out+0x8f1/0xc10 [ 123.914326] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.914711] ? lock_is_held_type+0xd7/0x130 [ 123.915034] ? __perf_cgroup_move+0x160/0x160 [ 123.915367] ? set_next_entity+0x304/0x550 [ 123.915689] ? update_curr+0x267/0x740 [ 123.915987] ? lock_is_held_type+0xd7/0x130 [ 123.916306] __schedule+0xedd/0x2470 [ 123.916586] ? io_schedule_timeout+0x150/0x150 [ 123.916925] ? __x64_sys_futex_time32+0x480/0x480 [ 123.917281] schedule+0xda/0x1b0 [ 123.917540] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.917907] syscall_exit_to_user_mode+0x19/0x40 [ 123.918274] do_syscall_64+0x48/0x90 [ 123.918551] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.918937] RIP: 0033:0x7ffa746f9b19 [ 123.919219] 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 [ 123.920531] RSP: 002b:00007ffa71c6f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.921090] RAX: 0000000000000001 RBX: 00007ffa7480cf68 RCX: 00007ffa746f9b19 [ 123.921614] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ffa7480cf6c [ 123.922141] RBP: 00007ffa7480cf60 R08: 000000000000000e R09: 0000000000000000 [ 123.922660] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffa7480cf6c [ 123.923178] R13: 00007ffdc028590f R14: 00007ffa71c6f300 R15: 0000000000022000 [ 123.923704] [ 123.923878] irq event stamp: 624 [ 123.924135] hardirqs last enabled at (623): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 123.924818] hardirqs last disabled at (624): [] __schedule+0x1225/0x2470 [ 123.925415] softirqs last enabled at (340): [] __irq_exit_rcu+0x11b/0x180 [ 123.926046] softirqs last disabled at (305): [] __irq_exit_rcu+0x11b/0x180 [ 123.926671] ---[ end trace 0000000000000000 ]--- [ 127.479494] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 127.480725] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 127.483845] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 127.486093] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 127.488312] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 127.490460] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 127.494001] Bluetooth: hci4: HCI_REQ-0x0c1a [ 129.515378] Bluetooth: hci4: command 0x0409 tx timeout [ 131.563458] Bluetooth: hci4: command 0x041b tx timeout [ 133.611405] Bluetooth: hci4: command 0x040f tx timeout VM DIAGNOSIS: 14:38:12 Registers: info registers vcpu 0 RAX=0000000080000001 RBX=0000000000000001 RCX=0000000000000000 RDX=0000000000000001 RSI=ffff888040f7f890 RDI=0000000000000001 RBP=ffff888040f78000 RSP=ffff888040f7f498 R8 =ffffffff85ed9b8c R9 =ffffffff85ed9b90 R10=ffffed10081efeb2 R11=ffff888040f7f568 R12=ffff888040f7f569 R13=ffff888040f7f588 R14=ffff888040f7f528 R15=0000000000000001 RIP=ffffffff8120389e 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 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=00007f6dd4868260 CR3=00000000400ca000 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 756e696c2d34365f 3638782f62696c2f YMM01=0000000000000000 0000000000000000 2e6f747079726362 696c2f756e672d78 YMM02=0000000000000000 0000000000000000 00312e312e6f732e 6f74707972636269 YMM03=0000000000000000 0000000000000000 6c2f756e672d7875 6e696c2d34365f36 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 info registers vcpu 1 RAX=000000000000006b RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b25c1 RDI=ffffffff8763fae0 RBP=ffffffff8763faa0 RSP=ffff8880186df698 R8 =0000000000000001 R9 =000000000000000a R10=000000000000006b R11=0000000000000001 R12=000000000000006b R13=ffffffff8763faa0 R14=0000000000000010 R15=ffffffff822b25b0 RIP=ffffffff822b2619 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 00007ffa71c6f700 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=00007f0262d8b4a1 CR3=00000000401de000 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 00007ffa747e07c0 00007ffa747e07c8 YMM02=0000000000000000 0000000000000000 00007ffa747e07e0 00007ffa747e07c0 YMM03=0000000000000000 0000000000000000 00007ffa747e07c8 00007ffa747e07c0 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