syzkaller login: [ 35.722919] sshd (252) used greatest stack depth: 24776 bytes left Warning: Permanently added '[localhost]:46803' (ECDSA) to the list of known hosts. 2022/09/12 17:51:02 fuzzer started 2022/09/12 17:51:02 dialing manager at localhost:38027 [ 39.591824] cgroup: Unknown subsys name 'net' [ 39.709862] cgroup: Unknown subsys name 'rlimit' 2022/09/12 17:51:19 syscalls: 2215 2022/09/12 17:51:19 code coverage: enabled 2022/09/12 17:51:19 comparison tracing: enabled 2022/09/12 17:51:19 extra coverage: enabled 2022/09/12 17:51:19 setuid sandbox: enabled 2022/09/12 17:51:19 namespace sandbox: enabled 2022/09/12 17:51:19 Android sandbox: enabled 2022/09/12 17:51:19 fault injection: enabled 2022/09/12 17:51:19 leak checking: enabled 2022/09/12 17:51:19 net packet injection: enabled 2022/09/12 17:51:19 net device setup: enabled 2022/09/12 17:51:19 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/12 17:51:19 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/12 17:51:19 USB emulation: enabled 2022/09/12 17:51:19 hci packet injection: enabled 2022/09/12 17:51:19 wifi device emulation: failed to parse kernel version (6.0.0-rc5-next-20220912) 2022/09/12 17:51:19 802.15.4 emulation: enabled 2022/09/12 17:51:19 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/12 17:51:19 fetching corpus: 50, signal 33956/37439 (executing program) 2022/09/12 17:51:19 fetching corpus: 100, signal 45909/50882 (executing program) 2022/09/12 17:51:20 fetching corpus: 150, signal 59781/65984 (executing program) 2022/09/12 17:51:20 fetching corpus: 200, signal 66116/73634 (executing program) 2022/09/12 17:51:20 fetching corpus: 250, signal 71659/80446 (executing program) 2022/09/12 17:51:20 fetching corpus: 300, signal 77639/87583 (executing program) 2022/09/12 17:51:20 fetching corpus: 350, signal 82043/93142 (executing program) 2022/09/12 17:51:20 fetching corpus: 400, signal 87290/99439 (executing program) 2022/09/12 17:51:20 fetching 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program) 2022/09/12 17:51:42 fetching corpus: 8185, signal 253098/266629 (executing program) 2022/09/12 17:51:42 fetching corpus: 8235, signal 253429/266652 (executing program) 2022/09/12 17:51:42 fetching corpus: 8285, signal 253934/266653 (executing program) 2022/09/12 17:51:42 fetching corpus: 8335, signal 254418/266751 (executing program) 2022/09/12 17:51:42 fetching corpus: 8385, signal 255052/266782 (executing program) 2022/09/12 17:51:42 fetching corpus: 8435, signal 255587/266786 (executing program) 2022/09/12 17:51:42 fetching corpus: 8435, signal 255587/266786 (executing program) 2022/09/12 17:51:45 starting 8 fuzzer processes 17:51:45 executing program 3: futex(&(0x7f0000000000), 0x6, 0x0, &(0x7f0000000040)={0x0, 0x989680}, 0x0, 0x0) 17:51:45 executing program 0: r0 = syz_open_dev$rtc(&(0x7f0000000000), 0x0, 0x0) ioctl$RTC_SET_TIME(r0, 0x4024700a, &(0x7f0000000080)={0x0, 0x0, 0x7, 0xa, 0x0, 0x1422}) 17:51:45 executing program 5: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) creat(0x0, 0x0) connect$bt_l2cap(r0, &(0x7f00000000c0)={0x1f, 0x2f1, @fixed}, 0xe) ioctl$BTRFS_IOC_INO_LOOKUP_USER(0xffffffffffffffff, 0xd000943e, 0x0) 17:51:45 executing program 4: mlock2(&(0x7f0000ff7000/0x4000)=nil, 0x4000, 0x0) shmat(0xffffffffffffffff, &(0x7f0000fed000/0x13000)=nil, 0x0) r0 = perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0x0, 0x10, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, @perf_config_ext={0x0, 0x80000001}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x3) ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000040)) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/route\x00') r2 = shmget$private(0x0, 0x14000, 0x0, &(0x7f0000fe7000/0x14000)=nil) shmat(r2, &(0x7f0000ff0000/0x3000)=nil, 0x4000) shmat(r2, &(0x7f0000ffb000/0x4000)=nil, 0x4000) shmat(r2, &(0x7f0000ff6000/0x4000)=nil, 0x7000) shmctl$IPC_STAT(r2, 0x2, &(0x7f0000000140)=""/237) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x2000000000000000}, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) finit_module(r0, &(0x7f0000000100)='/dev/l\xd4\xd2j\x97\xd0ME\x12w\xaf\xf2T\xe8#rol\x00', 0x0) ioctl$LOOP_CTL_ADD(0xffffffffffffffff, 0x4c80, 0xb) r3 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000440), 0x20001, 0x0) mmap$perf(&(0x7f0000fee000/0x4000)=nil, 0x4000, 0xb, 0x11, r1, 0x8) ioctl$SNAPSHOT_FREE(r3, 0x3305) mremap(&(0x7f0000ff7000/0x2000)=nil, 0x2000, 0x2000, 0x7, &(0x7f0000ffe000/0x2000)=nil) 17:51:45 executing program 1: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0) setsockopt$bt_l2cap_L2CAP_OPTIONS(r0, 0x6, 0x1, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xdd99}, 0xc) 17:51:45 executing program 2: r0 = 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, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000040), 0xb}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xb) r1 = openat(0xffffffffffffff9c, &(0x7f00000014c0)='./file0\x00', 0x26e1, 0x62) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000000)={{0x1, 0x1, 0x18, r0}, './file0\x00'}) readv(0xffffffffffffffff, &(0x7f00000003c0)=[{&(0x7f0000000340)=""/75, 0x4b}], 0x1) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000200)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3}}, './file1\x00'}) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r2, 0xc08c5332, &(0x7f0000000140)={0x1a2dacb5, 0x1, 0x0, 'queue1\x00', 0xfff}) syncfs(r1) 17:51:45 executing program 7: r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) connect$802154_dgram(r0, &(0x7f00000019c0)={0x24, @long}, 0x6) 17:51:45 executing program 6: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) perf_event_open(0x0, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat(0xffffffffffffff9c, 0x0, 0x0, 0x0) pwritev(0xffffffffffffffff, &(0x7f0000002d40)=[{&(0x7f0000001980)="c3ffe8df0c452502f7a2ddebbe98e481f151a04aba264127b46e9d302e56c31fe306d86f2f1c9f301191c5822ae14c411d20e934b45d8aac", 0x38}, {0x0}, {&(0x7f0000001780)="79f88c2da7fc28419cfc23841fb2ca9c457d4b057dcec6cb7438db13d2c95ae62a52635ee52d3b7b08a35b387b60da475f310260205a12ba0aa34468c532913cbc72", 0x42}, {0x0}], 0x4, 0x9, 0x3) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x101042, 0x0) write(r1, &(0x7f0000000080)="01", 0x41030) close_range(r0, 0xffffffffffffffff, 0x0) [ 79.360746] audit: type=1400 audit(1663005105.395:6): avc: denied { execmem } for pid=285 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 80.717245] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 80.718062] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 80.718964] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 80.719999] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 80.720878] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 80.722091] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 80.723268] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 80.723881] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 80.724442] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 80.726057] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 80.726618] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 80.727204] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 80.728094] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 80.728765] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 80.729350] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 80.730063] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 80.730651] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 80.731205] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 80.736964] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 80.737710] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 80.738233] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 80.738835] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 80.740873] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 80.741454] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 80.742008] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 80.742688] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 80.743241] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 80.745295] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 80.747185] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 80.748857] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 80.750419] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 80.751849] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 80.753894] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 80.755454] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 80.756485] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 80.757968] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 80.759989] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 80.761919] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 80.764143] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 80.765249] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 80.766387] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 80.767859] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 80.772288] Bluetooth: hci7: HCI_REQ-0x0c1a [ 80.776654] Bluetooth: hci3: HCI_REQ-0x0c1a [ 80.779096] Bluetooth: hci4: HCI_REQ-0x0c1a [ 80.785889] Bluetooth: hci0: HCI_REQ-0x0c1a [ 80.793862] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 80.803661] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 80.807091] Bluetooth: hci1: HCI_REQ-0x0c1a [ 80.808093] Bluetooth: hci2: HCI_REQ-0x0c1a [ 80.808573] Bluetooth: hci5: HCI_REQ-0x0c1a [ 80.810911] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 80.820194] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 80.822804] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 80.825717] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 80.840316] Bluetooth: hci6: HCI_REQ-0x0c1a [ 82.815246] Bluetooth: hci1: command 0x0409 tx timeout [ 82.815246] Bluetooth: hci0: command 0x0409 tx timeout [ 82.816266] Bluetooth: hci3: command 0x0409 tx timeout [ 82.816685] Bluetooth: hci2: command 0x0409 tx timeout [ 82.818900] Bluetooth: hci5: command 0x0409 tx timeout [ 82.819887] Bluetooth: hci4: command 0x0409 tx timeout [ 82.820328] Bluetooth: hci7: command 0x0409 tx timeout [ 82.878862] Bluetooth: hci6: command 0x0409 tx timeout [ 84.862632] Bluetooth: hci7: command 0x041b tx timeout [ 84.863143] Bluetooth: hci4: command 0x041b tx timeout [ 84.863626] Bluetooth: hci5: command 0x041b tx timeout [ 84.864066] Bluetooth: hci2: command 0x041b tx timeout [ 84.864497] Bluetooth: hci3: command 0x041b tx timeout [ 84.866310] Bluetooth: hci1: command 0x041b tx timeout [ 84.866890] Bluetooth: hci0: command 0x041b tx timeout [ 84.926866] Bluetooth: hci6: command 0x041b tx timeout [ 86.910700] Bluetooth: hci0: command 0x040f tx timeout [ 86.911616] Bluetooth: hci1: command 0x040f tx timeout [ 86.912390] Bluetooth: hci3: command 0x040f tx timeout [ 86.913206] Bluetooth: hci2: command 0x040f tx timeout [ 86.914031] Bluetooth: hci5: command 0x040f tx timeout [ 86.915669] Bluetooth: hci4: command 0x040f tx timeout [ 86.916443] Bluetooth: hci7: command 0x040f tx timeout [ 86.975115] Bluetooth: hci6: command 0x040f tx timeout [ 88.958884] Bluetooth: hci7: command 0x0419 tx timeout [ 88.960045] Bluetooth: hci4: command 0x0419 tx timeout [ 88.962155] Bluetooth: hci5: command 0x0419 tx timeout [ 88.963068] Bluetooth: hci2: command 0x0419 tx timeout [ 88.965365] Bluetooth: hci3: command 0x0419 tx timeout [ 88.966324] Bluetooth: hci1: command 0x0419 tx timeout [ 88.968688] Bluetooth: hci0: command 0x0419 tx timeout [ 89.023065] Bluetooth: hci6: command 0x0419 tx timeout [ 138.677966] audit: type=1400 audit(1663005164.711:7): avc: denied { open } for pid=3854 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 [ 138.679607] audit: type=1400 audit(1663005164.712:8): avc: denied { kernel } for pid=3854 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 [ 138.697184] ------------[ cut here ]------------ [ 138.697206] [ 138.697209] ====================================================== [ 138.697213] WARNING: possible circular locking dependency detected [ 138.697217] 6.0.0-rc5-next-20220912 #1 Not tainted [ 138.697224] ------------------------------------------------------ [ 138.697227] syz-executor.2/3855 is trying to acquire lock: [ 138.697233] ffffffff853fa878 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 138.697272] [ 138.697272] but task is already holding lock: [ 138.697275] ffff88800d0fec20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 138.697303] [ 138.697303] which lock already depends on the new lock. [ 138.697303] [ 138.697306] [ 138.697306] the existing dependency chain (in reverse order) is: [ 138.697309] [ 138.697309] -> #3 (&ctx->lock){....}-{2:2}: [ 138.697323] _raw_spin_lock+0x2a/0x40 [ 138.697340] __perf_event_task_sched_out+0x53b/0x18d0 [ 138.697352] __schedule+0xedd/0x2470 [ 138.697362] schedule+0xda/0x1b0 [ 138.697371] exit_to_user_mode_prepare+0x114/0x1a0 [ 138.697392] syscall_exit_to_user_mode+0x19/0x40 [ 138.697410] do_syscall_64+0x48/0x90 [ 138.697423] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.697441] [ 138.697441] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 138.697454] _raw_spin_lock_nested+0x30/0x40 [ 138.697469] raw_spin_rq_lock_nested+0x1e/0x30 [ 138.697483] task_fork_fair+0x63/0x4d0 [ 138.697501] sched_cgroup_fork+0x3d0/0x540 [ 138.697518] copy_process+0x3f9e/0x6df0 [ 138.697528] kernel_clone+0xe7/0x890 [ 138.697538] user_mode_thread+0xad/0xf0 [ 138.697548] rest_init+0x24/0x250 [ 138.697564] arch_call_rest_init+0xf/0x14 [ 138.697583] start_kernel+0x4c1/0x4e6 [ 138.697600] secondary_startup_64_no_verify+0xe0/0xeb [ 138.697615] [ 138.697615] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 138.697629] _raw_spin_lock_irqsave+0x39/0x60 [ 138.697644] try_to_wake_up+0xab/0x1920 [ 138.697657] up+0x75/0xb0 [ 138.697669] __up_console_sem+0x6e/0x80 [ 138.697685] console_unlock+0x46a/0x590 [ 138.697701] vt_ioctl+0x2822/0x2ca0 [ 138.697714] tty_ioctl+0x7c4/0x1700 [ 138.697726] __x64_sys_ioctl+0x19a/0x210 [ 138.697741] do_syscall_64+0x3b/0x90 [ 138.697754] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.697771] [ 138.697771] -> #0 ((console_sem).lock){....}-{2:2}: [ 138.697784] __lock_acquire+0x2a02/0x5e70 [ 138.697801] lock_acquire+0x1a2/0x530 [ 138.697817] _raw_spin_lock_irqsave+0x39/0x60 [ 138.697832] down_trylock+0xe/0x70 [ 138.697844] __down_trylock_console_sem+0x3b/0xd0 [ 138.697861] vprintk_emit+0x16b/0x560 [ 138.697878] vprintk+0x84/0xa0 [ 138.697894] _printk+0xba/0xf1 [ 138.697912] report_bug.cold+0x72/0xab [ 138.697924] handle_bug+0x3c/0x70 [ 138.697936] exc_invalid_op+0x14/0x50 [ 138.697949] asm_exc_invalid_op+0x16/0x20 [ 138.697965] group_sched_out.part.0+0x2c7/0x460 [ 138.697976] ctx_sched_out+0x8f1/0xc10 [ 138.697986] __perf_event_task_sched_out+0x6d0/0x18d0 [ 138.697998] __schedule+0xedd/0x2470 [ 138.698007] schedule+0xda/0x1b0 [ 138.698016] exit_to_user_mode_prepare+0x114/0x1a0 [ 138.698036] syscall_exit_to_user_mode+0x19/0x40 [ 138.698052] do_syscall_64+0x48/0x90 [ 138.698065] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.698082] [ 138.698082] other info that might help us debug this: [ 138.698082] [ 138.698085] Chain exists of: [ 138.698085] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 138.698085] [ 138.698100] Possible unsafe locking scenario: [ 138.698100] [ 138.698102] CPU0 CPU1 [ 138.698104] ---- ---- [ 138.698107] lock(&ctx->lock); [ 138.698112] lock(&rq->__lock); [ 138.698119] lock(&ctx->lock); [ 138.698125] lock((console_sem).lock); [ 138.698131] [ 138.698131] *** DEADLOCK *** [ 138.698131] [ 138.698132] 2 locks held by syz-executor.2/3855: [ 138.698139] #0: ffff88806ce37cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 138.698165] #1: ffff88800d0fec20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 138.698192] [ 138.698192] stack backtrace: [ 138.698195] CPU: 0 PID: 3855 Comm: syz-executor.2 Not tainted 6.0.0-rc5-next-20220912 #1 [ 138.698208] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 138.698216] Call Trace: [ 138.698219] [ 138.698223] dump_stack_lvl+0x8b/0xb3 [ 138.698238] check_noncircular+0x263/0x2e0 [ 138.698255] ? format_decode+0x26c/0xb50 [ 138.698269] ? print_circular_bug+0x450/0x450 [ 138.698287] ? enable_ptr_key_workfn+0x20/0x20 [ 138.698301] ? format_decode+0x26c/0xb50 [ 138.698317] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 138.698335] __lock_acquire+0x2a02/0x5e70 [ 138.698357] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 138.698379] lock_acquire+0x1a2/0x530 [ 138.698397] ? down_trylock+0xe/0x70 [ 138.698411] ? rcu_read_unlock+0x40/0x40 [ 138.698432] ? vprintk+0x84/0xa0 [ 138.698451] _raw_spin_lock_irqsave+0x39/0x60 [ 138.698466] ? down_trylock+0xe/0x70 [ 138.698480] down_trylock+0xe/0x70 [ 138.698493] ? vprintk+0x84/0xa0 [ 138.698510] __down_trylock_console_sem+0x3b/0xd0 [ 138.698528] vprintk_emit+0x16b/0x560 [ 138.698548] vprintk+0x84/0xa0 [ 138.698566] _printk+0xba/0xf1 [ 138.698583] ? record_print_text.cold+0x16/0x16 [ 138.698605] ? report_bug.cold+0x66/0xab [ 138.698619] ? group_sched_out.part.0+0x2c7/0x460 [ 138.698631] report_bug.cold+0x72/0xab [ 138.698645] handle_bug+0x3c/0x70 [ 138.698659] exc_invalid_op+0x14/0x50 [ 138.698673] asm_exc_invalid_op+0x16/0x20 [ 138.698690] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 138.698703] 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 [ 138.698715] RSP: 0018:ffff88801d76fc48 EFLAGS: 00010006 [ 138.698724] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 138.698732] RDX: ffff88801b28b580 RSI: ffffffff81566027 RDI: 0000000000000005 [ 138.698740] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 138.698747] R10: 0000000000000000 R11: ffffffff865aa01b R12: ffff88800d0fec00 [ 138.698755] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 138.698766] ? group_sched_out.part.0+0x2c7/0x460 [ 138.698779] ? group_sched_out.part.0+0x2c7/0x460 [ 138.698792] ctx_sched_out+0x8f1/0xc10 [ 138.698804] __perf_event_task_sched_out+0x6d0/0x18d0 [ 138.698820] ? lock_is_held_type+0xd7/0x130 [ 138.698838] ? __perf_cgroup_move+0x160/0x160 [ 138.698850] ? set_next_entity+0x304/0x550 [ 138.698868] ? update_curr+0x267/0x740 [ 138.698887] ? lock_is_held_type+0xd7/0x130 [ 138.698905] __schedule+0xedd/0x2470 [ 138.698918] ? io_schedule_timeout+0x150/0x150 [ 138.698930] ? rcu_read_lock_sched_held+0x3e/0x80 [ 138.698952] schedule+0xda/0x1b0 [ 138.698962] exit_to_user_mode_prepare+0x114/0x1a0 [ 138.698983] syscall_exit_to_user_mode+0x19/0x40 [ 138.699001] do_syscall_64+0x48/0x90 [ 138.699015] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.699032] RIP: 0033:0x7f62f8da6b19 [ 138.699041] 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 [ 138.699052] RSP: 002b:00007f62f631c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 138.699063] RAX: 0000000000000001 RBX: 00007f62f8eb9f68 RCX: 00007f62f8da6b19 [ 138.699070] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f62f8eb9f6c [ 138.699078] RBP: 00007f62f8eb9f60 R08: 000000000000000e R09: 0000000000000000 [ 138.699085] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f62f8eb9f6c [ 138.699092] R13: 00007ffd8913905f R14: 00007f62f631c300 R15: 0000000000022000 [ 138.699105] [ 138.750510] WARNING: CPU: 0 PID: 3855 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 138.751121] Modules linked in: [ 138.751343] CPU: 0 PID: 3855 Comm: syz-executor.2 Not tainted 6.0.0-rc5-next-20220912 #1 [ 138.751870] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 138.752598] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 138.752965] 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 [ 138.754145] RSP: 0018:ffff88801d76fc48 EFLAGS: 00010006 [ 138.754497] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 138.754969] RDX: ffff88801b28b580 RSI: ffffffff81566027 RDI: 0000000000000005 [ 138.755445] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 138.755915] R10: 0000000000000000 R11: ffffffff865aa01b R12: ffff88800d0fec00 [ 138.756379] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 138.756847] FS: 00007f62f631c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 138.757375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 138.757907] CR2: 00007f006dc3c8e0 CR3: 0000000042352000 CR4: 0000000000350ef0 [ 138.758565] Call Trace: [ 138.758768] [ 138.758939] ctx_sched_out+0x8f1/0xc10 [ 138.759230] __perf_event_task_sched_out+0x6d0/0x18d0 [ 138.759621] ? lock_is_held_type+0xd7/0x130 [ 138.759955] ? __perf_cgroup_move+0x160/0x160 [ 138.760289] ? set_next_entity+0x304/0x550 [ 138.760610] ? update_curr+0x267/0x740 [ 138.760908] ? lock_is_held_type+0xd7/0x130 [ 138.761346] __schedule+0xedd/0x2470 [ 138.761725] ? io_schedule_timeout+0x150/0x150 [ 138.762106] ? rcu_read_lock_sched_held+0x3e/0x80 [ 138.762482] schedule+0xda/0x1b0 [ 138.762745] exit_to_user_mode_prepare+0x114/0x1a0 [ 138.763124] syscall_exit_to_user_mode+0x19/0x40 [ 138.763509] do_syscall_64+0x48/0x90 [ 138.763801] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 138.764305] RIP: 0033:0x7f62f8da6b19 [ 138.764670] 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 [ 138.766018] RSP: 002b:00007f62f631c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 138.766760] RAX: 0000000000000001 RBX: 00007f62f8eb9f68 RCX: 00007f62f8da6b19 [ 138.767312] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f62f8eb9f6c [ 138.767940] RBP: 00007f62f8eb9f60 R08: 000000000000000e R09: 0000000000000000 [ 138.768530] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f62f8eb9f6c [ 138.769076] R13: 00007ffd8913905f R14: 00007f62f631c300 R15: 0000000000022000 [ 138.769616] [ 138.769799] irq event stamp: 640 [ 138.770055] hardirqs last enabled at (639): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 138.770766] hardirqs last disabled at (640): [] __schedule+0x1225/0x2470 [ 138.771396] softirqs last enabled at (384): [] __irq_exit_rcu+0x11b/0x180 [ 138.772041] softirqs last disabled at (379): [] __irq_exit_rcu+0x11b/0x180 [ 138.772689] ---[ end trace 0000000000000000 ]--- [ 141.954802] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 141.956229] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 141.958750] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 141.961107] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 141.963201] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 141.964996] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 141.968016] Bluetooth: hci0: HCI_REQ-0x0c1a [ 142.093831] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 142.097655] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 142.098853] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 142.101060] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 142.103064] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 142.104462] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 142.108677] Bluetooth: hci1: HCI_REQ-0x0c1a [ 143.998545] Bluetooth: hci0: command 0x0409 tx timeout [ 144.126547] Bluetooth: hci1: command 0x0409 tx timeout [ 144.127132] Bluetooth: hci4: Opcode 0x c03 failed: -110 [ 144.128011] Bluetooth: hci2: Opcode 0x c03 failed: -110 [ 146.046563] Bluetooth: hci0: command 0x041b tx timeout [ 146.174576] Bluetooth: hci1: command 0x041b tx timeout [ 148.094571] Bluetooth: hci0: command 0x040f tx timeout [ 148.222579] Bluetooth: hci1: command 0x040f tx timeout [ 148.414632] Bluetooth: hci2: Opcode 0x c03 failed: -110 [ 148.478542] Bluetooth: hci4: Opcode 0x c03 failed: -110 VM DIAGNOSIS: 17:52:45 Registers: info registers vcpu 0 RAX=000000000000006f RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b1e41 RDI=ffffffff8763fae0 RBP=ffffffff8763faa0 RSP=ffff88801d76f698 R8 =0000000000000001 R9 =000000000000000a R10=000000000000006f R11=0000000000000001 R12=000000000000006f R13=ffffffff8763faa0 R14=0000000000000010 R15=ffffffff822b1e30 RIP=ffffffff822b1e99 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 00007f62f631c700 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=00007f006dc3c8e0 CR3=0000000042352000 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 00007f62f8e8d7c0 00007f62f8e8d7c8 YMM02=0000000000000000 0000000000000000 00007f62f8e8d7e0 00007f62f8e8d7c0 YMM03=0000000000000000 0000000000000000 00007f62f8e8d7c8 00007f62f8e8d7c0 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=0000000000000015 RBX=0000000000000001 RCX=0000000000000000 RDX=dffffc0000000000 RSI=1ffffffff0c276c4 RDI=ffffffff85d4e2b8 RBP=ffff88801ebef918 RSP=ffff88801ebef840 R8 =ffffffff8613b620 R9 =ffffffff8613b624 R10=ffffed1003d7df25 R11=000000000003603d R12=ffff88801ebef901 R13=ffff88801ebef920 R14=ffff88801ebef8c0 R15=ffffffff8613b625 RIP=ffffffff8111b70a RFL=00000213 [----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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000555555d98400 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=00007f6a4a878260 CR3=0000000035b2e000 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 ff00000000000000 ff0000000000ff00 YMM02=0000000000000000 0000000000000000 00000000000000ff 0000000000000000 YMM03=0000000000000000 0000000000000000 00000000000000ff 00000000000000ff YMM04=0000000000000000 0000000000000000 00ff0000000000ff 00000000ff000000 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