syzkaller login: [ 33.610420] sshd (246) used greatest stack depth: 24376 bytes left Warning: Permanently added '[localhost]:16643' (ECDSA) to the list of known hosts. 2022/09/19 14:40:34 fuzzer started 2022/09/19 14:40:34 dialing manager at localhost:42121 [ 35.700468] cgroup: Unknown subsys name 'net' [ 35.833845] cgroup: Unknown subsys name 'rlimit' 2022/09/19 14:40:49 syscalls: 2215 2022/09/19 14:40:49 code coverage: enabled 2022/09/19 14:40:49 comparison tracing: enabled 2022/09/19 14:40:49 extra coverage: enabled 2022/09/19 14:40:49 setuid sandbox: enabled 2022/09/19 14:40:49 namespace sandbox: enabled 2022/09/19 14:40:49 Android sandbox: enabled 2022/09/19 14:40:49 fault injection: enabled 2022/09/19 14:40:49 leak checking: enabled 2022/09/19 14:40:49 net packet injection: enabled 2022/09/19 14:40:49 net device setup: enabled 2022/09/19 14:40:49 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/19 14:40:49 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/19 14:40:49 USB emulation: enabled 2022/09/19 14:40:49 hci packet injection: enabled 2022/09/19 14:40:49 wifi device emulation: failed to parse kernel version (6.0.0-rc6-next-20220919) 2022/09/19 14:40:49 802.15.4 emulation: enabled 2022/09/19 14:40:49 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/19 14:40:49 fetching corpus: 35, signal 20177/23805 (executing program) 2022/09/19 14:40:49 fetching corpus: 80, signal 42327/47163 (executing program) 2022/09/19 14:40:50 fetching corpus: 130, signal 51266/57428 (executing program) 2022/09/19 14:40:50 fetching corpus: 180, signal 60951/68228 (executing program) 2022/09/19 14:40:50 fetching corpus: 230, signal 65394/73876 (executing program) 2022/09/19 14:40:50 fetching corpus: 280, signal 70376/79984 (executing program) 2022/09/19 14:40:50 fetching corpus: 330, signal 75741/86292 (executing program) 2022/09/19 14:40:50 fetching corpus: 379, signal 78846/90461 (executing program) 2022/09/19 14:40:50 fetching 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(executing program) 2022/09/19 14:41:02 fetching corpus: 4613, signal 207888/222044 (executing program) 2022/09/19 14:41:02 fetching corpus: 4663, signal 208563/222281 (executing program) 2022/09/19 14:41:02 fetching corpus: 4713, signal 209193/222524 (executing program) 2022/09/19 14:41:02 fetching corpus: 4763, signal 209734/222795 (executing program) 2022/09/19 14:41:02 fetching corpus: 4812, signal 210260/222992 (executing program) 2022/09/19 14:41:02 fetching corpus: 4862, signal 210960/223171 (executing program) 2022/09/19 14:41:02 fetching corpus: 4911, signal 211622/223378 (executing program) 2022/09/19 14:41:02 fetching corpus: 4959, signal 212200/223530 (executing program) 2022/09/19 14:41:03 fetching corpus: 5009, signal 212572/223683 (executing program) 2022/09/19 14:41:03 fetching corpus: 5059, signal 213236/223876 (executing program) 2022/09/19 14:41:03 fetching corpus: 5109, signal 213909/224027 (executing program) 2022/09/19 14:41:03 fetching corpus: 5158, signal 214349/224133 (executing program) 2022/09/19 14:41:03 fetching corpus: 5208, signal 214950/224284 (executing program) 2022/09/19 14:41:03 fetching corpus: 5257, signal 215495/224388 (executing program) 2022/09/19 14:41:03 fetching corpus: 5307, signal 216565/224496 (executing program) 2022/09/19 14:41:04 fetching corpus: 5356, signal 217201/224570 (executing program) 2022/09/19 14:41:04 fetching corpus: 5406, signal 217875/224648 (executing program) 2022/09/19 14:41:04 fetching corpus: 5456, signal 218315/224657 (executing program) 2022/09/19 14:41:04 fetching corpus: 5463, signal 218471/224657 (executing program) 2022/09/19 14:41:04 fetching corpus: 5463, signal 218471/224657 (executing program) 2022/09/19 14:41:07 starting 8 fuzzer processes 14:41:07 executing program 0: listen(0xffffffffffffffff, 0x0) 14:41:07 executing program 1: r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8924, &(0x7f0000000000)={'sit0\x00'}) 14:41:07 executing program 2: symlink(&(0x7f0000000080)='./file0\x00', &(0x7f00000000c0)='./file1\x00') readlink(&(0x7f0000000680)='./file1\x00', &(0x7f0000000100)=""/251, 0xfb) readlinkat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', &(0x7f0000000200)=""/209, 0xd1) 14:41:07 executing program 3: setitimer(0x0, &(0x7f0000000100)={{}, {0x77359400}}, 0x0) getitimer(0x0, &(0x7f0000000340)) 14:41:07 executing program 5: r0 = syz_open_dev$sg(&(0x7f0000002240), 0x0, 0x0) ioctl$SG_NEXT_CMD_LEN(r0, 0x2289, 0x0) 14:41:07 executing program 6: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(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) preadv(0xffffffffffffffff, &(0x7f0000001140)=[{&(0x7f0000000140)=""/4096, 0x1000}], 0x1, 0x0, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_PAUSE_SET(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000080)={0x18, r1, 0x301, 0x0, 0x0, {0x4}, [@ETHTOOL_A_PAUSE_HEADER={0x4}]}, 0x18}}, 0x0) sendmsg$ETHTOOL_MSG_PAUSE_SET(0xffffffffffffffff, &(0x7f0000001340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000001300)={0x0}}, 0x800) 14:41:07 executing program 4: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_REPAIR(r0, 0x6, 0x13, &(0x7f00000001c0)=0x1, 0x4) sendmmsg$inet6(r0, &(0x7f0000000180)=[{{0x0, 0x0, 0x0}}], 0x1, 0x2000c810) [ 68.374146] audit: type=1400 audit(1663598467.503:6): avc: denied { execmem } for pid=286 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 14:41:07 executing program 7: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000440), 0xa}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x9) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffff, 0x2, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) io_setup(0xb, &(0x7f0000000140)=0x0) r1 = openat$sr(0xffffffffffffff9c, &(0x7f0000000380), 0x800, 0x0) io_submit(r0, 0x1, &(0x7f0000000180)=[&(0x7f00000001c0)={0x0, 0x0, 0x0, 0x0, 0x0, r1, &(0x7f00000003c0)="1b7a1666851945cd80a5a2ac0000000000000000b2122fbfdce63a77a865f0778bd425e749feed51f1439746599f0422a9d32dcef6b20d00ce737d913518a188cb9ad737a3f10ee2333baed5899c00ab0d1cce9ff265d634b3b2996ff3a5a91a9283b3b8cbfac984eccdb937f1d200bf96b5b75d5da9e818e348b4", 0x7b, 0x8}]) r2 = eventfd2(0x7, 0x0) sendfile(r1, r2, &(0x7f0000000340)=0x5, 0x400) r3 = syz_open_procfs(0x0, &(0x7f0000000100)='net/dev\x00') socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff}) close(r1) openat(r1, &(0x7f0000000480)='./file2\x00', 0x101042, 0x19b) write(r4, &(0x7f0000000080)="01", 0x1) socket$nl_generic(0x10, 0x3, 0x10) ioctl$FICLONE(0xffffffffffffffff, 0x40049409, 0xffffffffffffffff) openat(0xffffffffffffffff, &(0x7f0000000200)='./file1\x00', 0x82040, 0xa) syz_genetlink_get_family_id$ethtool(&(0x7f0000000040), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'wlan0\x00'}) socket$packet(0x11, 0x3, 0x300) ioctl$F2FS_IOC_FLUSH_DEVICE(0xffffffffffffffff, 0x4008f50a, &(0x7f0000000300)={0x7, 0x5}) read$hiddev(r3, &(0x7f0000000040)=""/169, 0x200000e9) [ 69.776790] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 69.778659] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 69.783601] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 69.784775] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 69.789330] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 69.790699] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 69.792224] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 69.794235] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 69.795838] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 69.797177] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 69.798573] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 69.799739] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 69.801737] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 69.803054] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 69.804770] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 69.806068] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 69.807331] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 69.815994] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 69.817145] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 69.817797] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 69.818211] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 69.819358] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 69.821198] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 69.822700] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 69.823615] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 69.824819] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 69.826026] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 69.827142] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 69.828129] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 69.835066] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 69.835335] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 69.840176] Bluetooth: hci5: HCI_REQ-0x0c1a [ 69.840552] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 69.842210] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 69.843025] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 69.846602] Bluetooth: hci0: HCI_REQ-0x0c1a [ 69.847745] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 69.857784] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 69.859172] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 69.864262] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 69.865327] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 69.866519] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 69.867425] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 69.868960] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 69.872327] Bluetooth: hci2: HCI_REQ-0x0c1a [ 69.876365] Bluetooth: hci3: HCI_REQ-0x0c1a [ 69.877528] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 69.885710] Bluetooth: hci1: HCI_REQ-0x0c1a [ 69.906734] Bluetooth: hci4: HCI_REQ-0x0c1a [ 69.916272] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 69.917419] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 69.919190] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 69.921525] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 69.923523] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 69.926628] Bluetooth: hci7: HCI_REQ-0x0c1a [ 69.937185] Bluetooth: hci6: HCI_REQ-0x0c1a [ 71.889552] Bluetooth: hci2: command 0x0409 tx timeout [ 71.890529] Bluetooth: hci3: command 0x0409 tx timeout [ 71.890966] Bluetooth: hci0: command 0x0409 tx timeout [ 71.891357] Bluetooth: hci5: command 0x0409 tx timeout [ 71.953019] Bluetooth: hci1: command 0x0409 tx timeout [ 71.953987] Bluetooth: hci6: command 0x0409 tx timeout [ 71.954670] Bluetooth: hci7: command 0x0409 tx timeout [ 71.955276] Bluetooth: hci4: command 0x0409 tx timeout [ 73.938028] Bluetooth: hci5: command 0x041b tx timeout [ 73.938658] Bluetooth: hci0: command 0x041b tx timeout [ 73.940101] Bluetooth: hci3: command 0x041b tx timeout [ 73.940760] Bluetooth: hci2: command 0x041b tx timeout [ 74.001993] Bluetooth: hci4: command 0x041b tx timeout [ 74.002610] Bluetooth: hci7: command 0x041b tx timeout [ 74.003235] Bluetooth: hci6: command 0x041b tx timeout [ 74.003787] Bluetooth: hci1: command 0x041b tx timeout [ 75.985955] Bluetooth: hci2: command 0x040f tx timeout [ 75.986481] Bluetooth: hci3: command 0x040f tx timeout [ 75.987902] Bluetooth: hci0: command 0x040f tx timeout [ 75.988536] Bluetooth: hci5: command 0x040f tx timeout [ 76.049939] Bluetooth: hci1: command 0x040f tx timeout [ 76.050389] Bluetooth: hci6: command 0x040f tx timeout [ 76.051290] Bluetooth: hci7: command 0x040f tx timeout [ 76.051720] Bluetooth: hci4: command 0x040f tx timeout [ 78.033941] Bluetooth: hci5: command 0x0419 tx timeout [ 78.034532] Bluetooth: hci0: command 0x0419 tx timeout [ 78.034947] Bluetooth: hci3: command 0x0419 tx timeout [ 78.035491] Bluetooth: hci2: command 0x0419 tx timeout [ 78.096946] Bluetooth: hci4: command 0x0419 tx timeout [ 78.097523] Bluetooth: hci7: command 0x0419 tx timeout [ 78.098854] Bluetooth: hci6: command 0x0419 tx timeout [ 78.100117] Bluetooth: hci1: command 0x0419 tx timeout [ 126.998924] audit: type=1400 audit(1663598526.128:7): avc: denied { open } for pid=3767 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 127.001265] audit: type=1400 audit(1663598526.128:8): avc: denied { kernel } for pid=3767 comm="syz-executor.6" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 127.024982] ------------[ cut here ]------------ [ 127.025012] [ 127.025017] ====================================================== [ 127.025021] WARNING: possible circular locking dependency detected [ 127.025027] 6.0.0-rc6-next-20220919 #1 Not tainted [ 127.025037] ------------------------------------------------------ [ 127.025041] syz-executor.6/3769 is trying to acquire lock: [ 127.025051] ffffffff853fa838 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 127.025123] [ 127.025123] but task is already holding lock: [ 127.025127] ffff88800e612420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 127.025167] [ 127.025167] which lock already depends on the new lock. [ 127.025167] [ 127.025171] [ 127.025171] the existing dependency chain (in reverse order) is: [ 127.025175] [ 127.025175] -> #3 (&ctx->lock){....}-{2:2}: [ 127.025196] _raw_spin_lock+0x2a/0x40 [ 127.025221] __perf_event_task_sched_out+0x53b/0x18d0 [ 127.025239] __schedule+0xedd/0x2470 [ 127.025255] preempt_schedule_common+0x45/0xc0 [ 127.025272] __cond_resched+0x17/0x30 [ 127.025287] __mutex_lock+0xa3/0x14d0 [ 127.025304] __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.025323] do_syscall_64+0x3b/0x90 [ 127.025343] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 127.025368] [ 127.025368] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 127.025389] _raw_spin_lock_nested+0x30/0x40 [ 127.025411] raw_spin_rq_lock_nested+0x1e/0x30 [ 127.025429] task_fork_fair+0x63/0x4d0 [ 127.025454] sched_cgroup_fork+0x3d0/0x540 [ 127.025474] copy_process+0x4183/0x6e20 [ 127.025489] kernel_clone+0xe7/0x890 [ 127.025503] user_mode_thread+0xad/0xf0 [ 127.025518] rest_init+0x24/0x250 [ 127.025542] arch_call_rest_init+0xf/0x14 [ 127.025559] start_kernel+0x4c1/0x4e6 [ 127.025574] secondary_startup_64_no_verify+0xe0/0xeb [ 127.025594] [ 127.025594] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 127.025614] _raw_spin_lock_irqsave+0x39/0x60 [ 127.025637] try_to_wake_up+0xab/0x1920 [ 127.025656] up+0x75/0xb0 [ 127.025673] __up_console_sem+0x6e/0x80 [ 127.025695] console_unlock+0x46a/0x590 [ 127.025718] do_con_write+0xc05/0x1d50 [ 127.025735] con_write+0x21/0x40 [ 127.025749] n_tty_write+0x4d4/0xfe0 [ 127.025768] file_tty_write.constprop.0+0x49c/0x8f0 [ 127.025786] vfs_write+0x9c3/0xd90 [ 127.025811] ksys_write+0x127/0x250 [ 127.025836] do_syscall_64+0x3b/0x90 [ 127.025856] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 127.025881] [ 127.025881] -> #0 ((console_sem).lock){....}-{2:2}: [ 127.025902] __lock_acquire+0x2a02/0x5e70 [ 127.025926] lock_acquire+0x1a2/0x530 [ 127.025949] _raw_spin_lock_irqsave+0x39/0x60 [ 127.025971] down_trylock+0xe/0x70 [ 127.025992] __down_trylock_console_sem+0x3b/0xd0 [ 127.026015] vprintk_emit+0x16b/0x560 [ 127.026038] vprintk+0x84/0xa0 [ 127.026062] _printk+0xba/0xf1 [ 127.026086] report_bug.cold+0x72/0xab [ 127.026105] handle_bug+0x3c/0x70 [ 127.026124] exc_invalid_op+0x14/0x50 [ 127.026143] asm_exc_invalid_op+0x16/0x20 [ 127.026167] group_sched_out.part.0+0x2c7/0x460 [ 127.026183] ctx_sched_out+0x8f1/0xc10 [ 127.026197] __perf_event_task_sched_out+0x6d0/0x18d0 [ 127.026215] __schedule+0xedd/0x2470 [ 127.026229] preempt_schedule_common+0x45/0xc0 [ 127.026246] __cond_resched+0x17/0x30 [ 127.026261] __mutex_lock+0xa3/0x14d0 [ 127.026277] __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.026296] do_syscall_64+0x3b/0x90 [ 127.026315] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 127.026340] [ 127.026340] other info that might help us debug this: [ 127.026340] [ 127.026344] Chain exists of: [ 127.026344] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 127.026344] [ 127.026366] Possible unsafe locking scenario: [ 127.026366] [ 127.026369] CPU0 CPU1 [ 127.026372] ---- ---- [ 127.026376] lock(&ctx->lock); [ 127.026384] lock(&rq->__lock); [ 127.026393] lock(&ctx->lock); [ 127.026402] lock((console_sem).lock); [ 127.026411] [ 127.026411] *** DEADLOCK *** [ 127.026411] [ 127.026414] 2 locks held by syz-executor.6/3769: [ 127.026424] #0: ffff88806cf37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 127.026462] #1: ffff88800e612420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 127.026503] [ 127.026503] stack backtrace: [ 127.026507] CPU: 1 PID: 3769 Comm: syz-executor.6 Not tainted 6.0.0-rc6-next-20220919 #1 [ 127.026526] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 127.026537] Call Trace: [ 127.026542] [ 127.026548] dump_stack_lvl+0x8b/0xb3 [ 127.026570] check_noncircular+0x263/0x2e0 [ 127.026594] ? format_decode+0x26c/0xb50 [ 127.026616] ? print_circular_bug+0x450/0x450 [ 127.026641] ? enable_ptr_key_workfn+0x20/0x20 [ 127.026663] ? lock_release+0x547/0x750 [ 127.026688] ? format_decode+0x26c/0xb50 [ 127.026711] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 127.026737] __lock_acquire+0x2a02/0x5e70 [ 127.026768] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 127.026801] lock_acquire+0x1a2/0x530 [ 127.026826] ? down_trylock+0xe/0x70 [ 127.026847] ? lock_release+0x750/0x750 [ 127.026877] ? vprintk+0x84/0xa0 [ 127.026908] _raw_spin_lock_irqsave+0x39/0x60 [ 127.026931] ? down_trylock+0xe/0x70 [ 127.026951] down_trylock+0xe/0x70 [ 127.026970] ? vprintk+0x84/0xa0 [ 127.026995] __down_trylock_console_sem+0x3b/0xd0 [ 127.027020] vprintk_emit+0x16b/0x560 [ 127.027048] vprintk+0x84/0xa0 [ 127.027074] _printk+0xba/0xf1 [ 127.027100] ? record_print_text.cold+0x16/0x16 [ 127.027132] ? report_bug.cold+0x66/0xab [ 127.027154] ? group_sched_out.part.0+0x2c7/0x460 [ 127.027171] report_bug.cold+0x72/0xab [ 127.027193] handle_bug+0x3c/0x70 [ 127.027213] exc_invalid_op+0x14/0x50 [ 127.027235] asm_exc_invalid_op+0x16/0x20 [ 127.027260] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 127.027280] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d 5b 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 127.027297] RSP: 0018:ffff888019e07978 EFLAGS: 00010006 [ 127.027311] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 127.027322] RDX: ffff88800f460000 RSI: ffffffff81566077 RDI: 0000000000000005 [ 127.027333] RBP: ffff888040e90000 R08: 0000000000000005 R09: 0000000000000001 [ 127.027344] R10: 0000000000000000 R11: ffffffff865ac05b R12: ffff88800e612400 [ 127.027356] R13: ffff88806cf3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 127.027373] ? group_sched_out.part.0+0x2c7/0x460 [ 127.027392] ? group_sched_out.part.0+0x2c7/0x460 [ 127.027411] ctx_sched_out+0x8f1/0xc10 [ 127.027430] __perf_event_task_sched_out+0x6d0/0x18d0 [ 127.027453] ? lock_is_held_type+0xd7/0x130 [ 127.027480] ? __perf_cgroup_move+0x160/0x160 [ 127.027498] ? set_next_entity+0x304/0x550 [ 127.027523] ? update_curr+0x267/0x740 [ 127.027550] ? lock_is_held_type+0xd7/0x130 [ 127.027578] __schedule+0xedd/0x2470 [ 127.027598] ? io_schedule_timeout+0x150/0x150 [ 127.027615] ? find_held_lock+0x2c/0x110 [ 127.027639] ? lock_is_held_type+0xd7/0x130 [ 127.027665] ? __cond_resched+0x17/0x30 [ 127.027682] preempt_schedule_common+0x45/0xc0 [ 127.027701] __cond_resched+0x17/0x30 [ 127.027718] __mutex_lock+0xa3/0x14d0 [ 127.027737] ? lock_is_held_type+0xd7/0x130 [ 127.027763] ? __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.027785] ? mutex_lock_io_nested+0x1310/0x1310 [ 127.027804] ? lock_release+0x3b2/0x750 [ 127.027829] ? __up_read+0x192/0x730 [ 127.027851] ? up_write+0x480/0x480 [ 127.027872] ? _raw_spin_unlock_irqrestore+0x28/0x60 [ 127.027899] __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.027923] ? __up_read+0x192/0x730 [ 127.027944] ? perf_compat_ioctl+0x130/0x130 [ 127.027963] ? up_write+0x480/0x480 [ 127.027989] ? syscall_enter_from_user_mode+0x1d/0x50 [ 127.028016] ? syscall_enter_from_user_mode+0x1d/0x50 [ 127.028046] do_syscall_64+0x3b/0x90 [ 127.028067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 127.028093] RIP: 0033:0x7fd7d94a0b19 [ 127.028107] 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 [ 127.028123] RSP: 002b:00007fd7d6a16188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 127.028139] RAX: ffffffffffffffda RBX: 00007fd7d95b3f60 RCX: 00007fd7d94a0b19 [ 127.028151] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080 [ 127.028162] RBP: 00007fd7d94faf6d R08: 0000000000000000 R09: 0000000000000000 [ 127.028173] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 127.028184] R13: 00007ffdbdef219f R14: 00007fd7d6a16300 R15: 0000000000022000 [ 127.028204] [ 127.122094] WARNING: CPU: 1 PID: 3769 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 127.123597] Modules linked in: [ 127.124113] CPU: 1 PID: 3769 Comm: syz-executor.6 Not tainted 6.0.0-rc6-next-20220919 #1 [ 127.125399] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 127.127188] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 127.128091] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d 5b 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 127.130995] RSP: 0018:ffff888019e07978 EFLAGS: 00010006 [ 127.131883] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 127.133024] RDX: ffff88800f460000 RSI: ffffffff81566077 RDI: 0000000000000005 [ 127.134173] RBP: ffff888040e90000 R08: 0000000000000005 R09: 0000000000000001 [ 127.135317] R10: 0000000000000000 R11: ffffffff865ac05b R12: ffff88800e612400 [ 127.136492] R13: ffff88806cf3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 127.137685] FS: 00007fd7d6a16700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 127.138985] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 127.139946] CR2: 000055ffd0a184c8 CR3: 0000000040df8000 CR4: 0000000000350ee0 [ 127.141102] Call Trace: [ 127.141493] [ 127.141826] ctx_sched_out+0x8f1/0xc10 [ 127.142365] __perf_event_task_sched_out+0x6d0/0x18d0 [ 127.143084] ? lock_is_held_type+0xd7/0x130 [ 127.143795] ? __perf_cgroup_move+0x160/0x160 [ 127.144669] ? set_next_entity+0x304/0x550 [ 127.145524] ? update_curr+0x267/0x740 [ 127.146303] ? lock_is_held_type+0xd7/0x130 [ 127.147143] __schedule+0xedd/0x2470 [ 127.147878] ? io_schedule_timeout+0x150/0x150 [ 127.148738] ? find_held_lock+0x2c/0x110 [ 127.149299] ? lock_is_held_type+0xd7/0x130 [ 127.149910] ? __cond_resched+0x17/0x30 [ 127.150453] preempt_schedule_common+0x45/0xc0 [ 127.151105] __cond_resched+0x17/0x30 [ 127.151649] __mutex_lock+0xa3/0x14d0 [ 127.152182] ? lock_is_held_type+0xd7/0x130 [ 127.152796] ? __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.153545] ? mutex_lock_io_nested+0x1310/0x1310 [ 127.154226] ? lock_release+0x3b2/0x750 [ 127.154819] ? __up_read+0x192/0x730 [ 127.155345] ? up_write+0x480/0x480 [ 127.155876] ? _raw_spin_unlock_irqrestore+0x28/0x60 [ 127.156601] __do_sys_perf_event_open+0x1eec/0x32c0 [ 127.157310] ? __up_read+0x192/0x730 [ 127.157857] ? perf_compat_ioctl+0x130/0x130 [ 127.158479] ? up_write+0x480/0x480 [ 127.159032] ? syscall_enter_from_user_mode+0x1d/0x50 [ 127.159771] ? syscall_enter_from_user_mode+0x1d/0x50 [ 127.160501] do_syscall_64+0x3b/0x90 [ 127.161033] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 127.161807] RIP: 0033:0x7fd7d94a0b19 [ 127.162330] 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 [ 127.164855] RSP: 002b:00007fd7d6a16188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 127.165960] RAX: ffffffffffffffda RBX: 00007fd7d95b3f60 RCX: 00007fd7d94a0b19 [ 127.166974] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080 [ 127.167962] RBP: 00007fd7d94faf6d R08: 0000000000000000 R09: 0000000000000000 [ 127.168955] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 127.169951] R13: 00007ffdbdef219f R14: 00007fd7d6a16300 R15: 0000000000022000 [ 127.170996] [ 127.171332] irq event stamp: 676 [ 127.171818] hardirqs last enabled at (675): [] _raw_spin_unlock_irqrestore+0x28/0x60 [ 127.173137] hardirqs last disabled at (676): [] __schedule+0x1225/0x2470 [ 127.174299] softirqs last enabled at (340): [] __irq_exit_rcu+0x11b/0x180 [ 127.175500] softirqs last disabled at (309): [] __irq_exit_rcu+0x11b/0x180 [ 127.176715] ---[ end trace 0000000000000000 ]--- [ 131.055125] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 131.056425] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 131.058289] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 131.060500] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 131.062460] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 131.063747] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 131.067599] Bluetooth: hci1: HCI_REQ-0x0c1a [ 133.072978] Bluetooth: hci6: Opcode 0x c03 failed: -110 [ 133.073584] Bluetooth: hci4: Opcode 0x c03 failed: -110 [ 133.081768] Bluetooth: hci5: Opcode 0x c03 failed: -110 [ 133.082302] Bluetooth: hci0: Opcode 0x c03 failed: -110 [ 133.137939] Bluetooth: hci1: command 0x0409 tx timeout [ 135.184924] Bluetooth: hci1: command 0x041b tx timeout [ 135.410157] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 135.413963] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 135.416073] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 135.419543] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 135.422251] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 135.423535] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 135.427659] Bluetooth: hci4: HCI_REQ-0x0c1a VM DIAGNOSIS: 14:42:06 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=ffff88801804f5f0 RCX=0000000000000000 RDX=1ffff11003009ec0 RSI=ffffffff816c07e0 RDI=ffff88801804f5f8 RBP=000000000000000d RSP=ffff88801804f508 R8 =ffffffff85ebf9b4 R9 =ffffffff85ebf9b8 R10=ffffed1003009eb2 R11=ffff88801804f568 R12=ffff88801804f5f0 R13=0000000000000000 R14=ffff88801c5cb580 R15=0000000000092cc0 RIP=ffffffff8135b415 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=00007f18a33a6028 CR3=0000000041556000 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 6f732e616d7a6c62 696c2f756e672d78 YMM02=0000000000000000 0000000000000000 00352e6f732e616d 7a6c62696c2f756e YMM03=0000000000000000 0000000000000000 672d78756e696c2d 34365f3638782f62 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=000000000000002f RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b2e71 RDI=ffffffff87641ba0 RBP=ffffffff87641b60 RSP=ffff888019e073c8 R8 =0000000000000001 R9 =000000000000000a R10=000000000000002f R11=0000000000000001 R12=000000000000002f R13=ffffffff87641b60 R14=0000000000000010 R15=ffffffff822b2e60 RIP=ffffffff822b2ec9 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fd7d6a16700 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=000055ffd0a184c8 CR3=0000000040df8000 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 0070656474666f73 2e73656c75646f6d YMM01=0000000000000000 0000000000000000 0070656474666f73 2e73656c75646f6d YMM02=0000000000000000 0000000000000000 0000000000000000 0000ffffffffffff YMM03=0000000000000000 0000000000000000 0000000000000000 0000ff00000000ff YMM04=0000000000000000 0000000000000000 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM08=0000000000000000 0000000000000000 676f6c206d6f7473 7563000000000000 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