Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:47906' (ECDSA) to the list of known hosts. 2022/09/20 12:14:37 fuzzer started 2022/09/20 12:14:38 dialing manager at localhost:34957 syzkaller login: [ 38.344320] cgroup: Unknown subsys name 'net' [ 38.454463] cgroup: Unknown subsys name 'rlimit' 2022/09/20 12:14:51 syscalls: 2215 2022/09/20 12:14:51 code coverage: enabled 2022/09/20 12:14:51 comparison tracing: enabled 2022/09/20 12:14:51 extra coverage: enabled 2022/09/20 12:14:51 setuid sandbox: enabled 2022/09/20 12:14:51 namespace sandbox: enabled 2022/09/20 12:14:51 Android sandbox: enabled 2022/09/20 12:14:51 fault injection: enabled 2022/09/20 12:14:51 leak checking: enabled 2022/09/20 12:14:51 net packet injection: enabled 2022/09/20 12:14:51 net device setup: enabled 2022/09/20 12:14:51 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/20 12:14:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/20 12:14:51 USB emulation: enabled 2022/09/20 12:14:51 hci packet injection: enabled 2022/09/20 12:14:51 wifi device emulation: failed to parse kernel version (6.0.0-rc6-next-20220920) 2022/09/20 12:14:51 802.15.4 emulation: enabled 2022/09/20 12:14:51 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/20 12:14:52 fetching corpus: 33, signal 21439/24976 (executing program) 2022/09/20 12:14:52 fetching corpus: 83, signal 32794/37780 (executing program) 2022/09/20 12:14:52 fetching corpus: 133, signal 44844/50933 (executing program) 2022/09/20 12:14:52 fetching corpus: 183, signal 53176/60355 (executing program) 2022/09/20 12:14:52 fetching corpus: 233, signal 60039/68272 (executing program) 2022/09/20 12:14:52 fetching corpus: 283, signal 67008/76132 (executing program) 2022/09/20 12:14:52 fetching corpus: 333, signal 71771/81762 (executing program) 2022/09/20 12:14:52 fetching corpus: 383, signal 78119/88745 (executing program) 2022/09/20 12:14:53 fetching corpus: 433, signal 81252/92721 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(executing program) 2022/09/20 12:14:56 fetching corpus: 1683, signal 139889/158464 (executing program) 2022/09/20 12:14:56 fetching corpus: 1733, signal 141703/160142 (executing program) 2022/09/20 12:14:56 fetching corpus: 1783, signal 143664/161824 (executing program) 2022/09/20 12:14:56 fetching corpus: 1833, signal 145254/163270 (executing program) 2022/09/20 12:14:56 fetching corpus: 1883, signal 146282/164359 (executing program) 2022/09/20 12:14:57 fetching corpus: 1933, signal 147456/165485 (executing program) 2022/09/20 12:14:57 fetching corpus: 1983, signal 148155/166336 (executing program) 2022/09/20 12:14:57 fetching corpus: 2033, signal 149126/167297 (executing program) 2022/09/20 12:14:57 fetching corpus: 2083, signal 150236/168364 (executing program) 2022/09/20 12:14:57 fetching corpus: 2133, signal 151344/169348 (executing program) 2022/09/20 12:14:57 fetching corpus: 2183, signal 152383/170344 (executing program) 2022/09/20 12:14:57 fetching corpus: 2233, signal 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fetching corpus: 3994, signal 185598/189916 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/189989 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190040 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190093 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190142 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190189 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190244 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190303 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190355 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190398 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190449 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190497 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190523 (executing program) 2022/09/20 12:15:02 fetching corpus: 3994, signal 185598/190523 (executing program) 2022/09/20 12:15:04 starting 8 fuzzer processes 12:15:04 executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000080)='task\x00') getdents(r0, &(0x7f0000000000)=""/94, 0x20000018) 12:15:04 executing program 6: r0 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) ioctl$PTP_PEROUT_REQUEST2(r0, 0x40383d0c, &(0x7f0000000140)) 12:15:04 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x2) setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0x2, &(0x7f0000001540)=0x5, 0x4) 12:15:04 executing program 2: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000400)=[{&(0x7f0000000140)=""/158, 0x9e}, {&(0x7f0000000200)=""/23, 0x17}, {0x0}], 0x3, 0x0, 0x0) bind$802154_dgram(r0, &(0x7f0000000080)={0x24, @long={0x3, 0x0, {0xaaaaaaaaaaaa0102}}}, 0x14) connect$802154_dgram(r0, &(0x7f0000000040), 0x14) sendmmsg(r0, &(0x7f00000000c0), 0x45d, 0x0) 12:15:04 executing program 3: waitid$P_PIDFD(0x3, 0xffffffffffffffff, &(0x7f0000000040), 0x2, &(0x7f00000000c0)) 12:15:04 executing program 4: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x56ad, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000000000), &(0x7f0000000300)) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(0xffffffffffffffff, 0xc08c5332, 0x0) write$sndseq(0xffffffffffffffff, &(0x7f0000000140), 0x0) io_uring_register$IORING_REGISTER_PERSONALITY(0xffffffffffffffff, 0x9, 0x0, 0x0) pidfd_open(0x0, 0x0) perf_event_open(&(0x7f0000000580)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_bp={&(0x7f0000000040), 0xb}, 0x0, 0x20, 0x0, 0x0, 0x6e, 0xa0, 0xfc00}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x2) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(0xffffffffffffffff, 0x81f8943c, &(0x7f00000009c0)) r0 = openat$sr(0xffffffffffffff9c, &(0x7f00000001c0), 0x105802, 0x0) fcntl$setlease(0xffffffffffffffff, 0x400, 0x4) perf_event_open$cgroup(&(0x7f0000000500)={0x5, 0x80, 0x1, 0x2, 0xc1, 0xf9, 0x0, 0xd26, 0x4854d, 0x5, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x9, 0x1, @perf_bp={&(0x7f0000000240), 0x2}, 0x42000, 0x200, 0x40, 0x0, 0x7fffffff, 0x8, 0x1, 0x0, 0x9}, r0, 0x10, 0xffffffffffffffff, 0xc) mmap$IORING_OFF_SQ_RING(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x1000004, 0x2811, r0, 0x0) mmap$IORING_OFF_SQES(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x3000001, 0x8010, 0xffffffffffffffff, 0x10000000) close(r0) r1 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$LOOP_CTL_GET_FREE(r1, 0x4c82) perf_event_open(&(0x7f0000000100)={0x2, 0x80, 0x1, 0x8, 0x6a, 0xfe, 0x0, 0x3, 0x0, 0xb, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0xfccec63, 0x4, @perf_config_ext={0x1, 0x8000}, 0x20, 0x0, 0x4, 0x3, 0x0, 0x6, 0xff, 0x0, 0x81, 0x0, 0x1}, 0xffffffffffffffff, 0x0, r1, 0x9) syz_io_uring_setup(0x35a6, &(0x7f00000003c0)={0x0, 0x132c, 0x10, 0x2, 0x371}, &(0x7f0000fff000/0x1000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f0000000440), &(0x7f0000000480)) 12:15:04 executing program 5: r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$TIOCMGET(r0, 0x5415, 0x0) 12:15:04 executing program 7: mkdir(&(0x7f0000003b80)='./file0\x00', 0x0) stat(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0}) setresuid(0x0, r0, 0x0) r1 = socket$netlink(0x10, 0x3, 0x9) sendmsg$AUDIT_USER_AVC(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x10}, 0x10}}, 0x0) [ 64.631687] audit: type=1400 audit(1663676104.441:6): avc: denied { execmem } for pid=284 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 65.859268] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 65.862799] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 65.864905] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 65.868300] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 65.870431] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 65.872424] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 65.892579] Bluetooth: hci0: HCI_REQ-0x0c1a [ 65.931076] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 65.933376] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 65.935459] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 65.938855] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 65.941429] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 65.942749] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 65.948299] Bluetooth: hci3: HCI_REQ-0x0c1a [ 65.949473] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 65.956627] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 65.959576] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 65.962058] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 65.964568] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 65.964920] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 65.967121] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 65.968817] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 65.971514] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 65.973263] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 65.974324] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 65.976817] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 65.977902] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 65.979825] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 65.980953] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 65.982562] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 65.983846] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 65.984983] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 65.986160] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 65.988446] Bluetooth: hci4: HCI_REQ-0x0c1a [ 65.989314] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 65.992674] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 66.004072] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 66.005622] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 66.009611] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 66.011674] Bluetooth: hci6: HCI_REQ-0x0c1a [ 66.019821] Bluetooth: hci5: HCI_REQ-0x0c1a [ 66.026224] Bluetooth: hci1: HCI_REQ-0x0c1a [ 66.063883] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 66.067737] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 66.069859] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 66.069892] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 66.073924] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 66.075825] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 66.075966] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 66.078876] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 66.081032] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 66.085860] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 66.088863] Bluetooth: hci7: HCI_REQ-0x0c1a [ 66.100196] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 66.101947] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 66.108529] Bluetooth: hci2: HCI_REQ-0x0c1a [ 67.945783] Bluetooth: hci0: command 0x0409 tx timeout [ 68.008711] Bluetooth: hci4: command 0x0409 tx timeout [ 68.009861] Bluetooth: hci3: command 0x0409 tx timeout [ 68.072267] Bluetooth: hci6: command 0x0409 tx timeout [ 68.073452] Bluetooth: hci1: command 0x0409 tx timeout [ 68.074380] Bluetooth: hci5: command 0x0409 tx timeout [ 68.137226] Bluetooth: hci2: command 0x0409 tx timeout [ 68.138825] Bluetooth: hci7: command 0x0409 tx timeout [ 69.993192] Bluetooth: hci0: command 0x041b tx timeout [ 70.057205] Bluetooth: hci3: command 0x041b tx timeout [ 70.057680] Bluetooth: hci4: command 0x041b tx timeout [ 70.120267] Bluetooth: hci5: command 0x041b tx timeout [ 70.120737] Bluetooth: hci1: command 0x041b tx timeout [ 70.121170] Bluetooth: hci6: command 0x041b tx timeout [ 70.185282] Bluetooth: hci7: command 0x041b tx timeout [ 70.185749] Bluetooth: hci2: command 0x041b tx timeout [ 72.041160] Bluetooth: hci0: command 0x040f tx timeout [ 72.105153] Bluetooth: hci4: command 0x040f tx timeout [ 72.105621] Bluetooth: hci3: command 0x040f tx timeout [ 72.169161] Bluetooth: hci6: command 0x040f tx timeout [ 72.169630] Bluetooth: hci1: command 0x040f tx timeout [ 72.170066] Bluetooth: hci5: command 0x040f tx timeout [ 72.233203] Bluetooth: hci2: command 0x040f tx timeout [ 72.233671] Bluetooth: hci7: command 0x040f tx timeout [ 74.089199] Bluetooth: hci0: command 0x0419 tx timeout [ 74.153190] Bluetooth: hci3: command 0x0419 tx timeout [ 74.153651] Bluetooth: hci4: command 0x0419 tx timeout [ 74.217153] Bluetooth: hci5: command 0x0419 tx timeout [ 74.217603] Bluetooth: hci1: command 0x0419 tx timeout [ 74.217997] Bluetooth: hci6: command 0x0419 tx timeout [ 74.281151] Bluetooth: hci7: command 0x0419 tx timeout [ 74.281579] Bluetooth: hci2: command 0x0419 tx timeout [ 123.167894] audit: type=1400 audit(1663676162.977:7): avc: denied { open } for pid=3890 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 [ 123.173350] audit: type=1400 audit(1663676162.977:8): avc: denied { kernel } for pid=3890 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 [ 123.177683] ------------[ cut here ]------------ [ 123.177704] [ 123.177708] ====================================================== [ 123.177711] WARNING: possible circular locking dependency detected [ 123.177715] 6.0.0-rc6-next-20220920 #1 Not tainted [ 123.177722] ------------------------------------------------------ [ 123.177725] syz-executor.4/3891 is trying to acquire lock: [ 123.177731] ffffffff853faab8 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 123.177767] [ 123.177767] but task is already holding lock: [ 123.177770] ffff88800f883020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.177797] [ 123.177797] which lock already depends on the new lock. [ 123.177797] [ 123.177800] [ 123.177800] the existing dependency chain (in reverse order) is: [ 123.177803] [ 123.177803] -> #3 (&ctx->lock){....}-{2:2}: [ 123.177817] _raw_spin_lock+0x2a/0x40 [ 123.177836] __perf_event_task_sched_out+0x53b/0x18d0 [ 123.177849] __schedule+0xedd/0x2470 [ 123.177864] schedule+0xda/0x1b0 [ 123.177876] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.177887] syscall_exit_to_user_mode+0x19/0x40 [ 123.177898] do_syscall_64+0x48/0x90 [ 123.177914] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.177932] [ 123.177932] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 123.177946] _raw_spin_lock_nested+0x30/0x40 [ 123.177963] raw_spin_rq_lock_nested+0x1e/0x30 [ 123.177975] task_fork_fair+0x63/0x4d0 [ 123.177991] sched_cgroup_fork+0x3d0/0x540 [ 123.178005] copy_process+0x4183/0x6e20 [ 123.178015] kernel_clone+0xe7/0x890 [ 123.178024] user_mode_thread+0xad/0xf0 [ 123.178034] rest_init+0x24/0x250 [ 123.178044] arch_call_rest_init+0xf/0x14 [ 123.178059] start_kernel+0x4c1/0x4e6 [ 123.178071] secondary_startup_64_no_verify+0xe0/0xeb [ 123.178085] [ 123.178085] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 123.178098] _raw_spin_lock_irqsave+0x39/0x60 [ 123.178115] try_to_wake_up+0xab/0x1930 [ 123.178128] up+0x75/0xb0 [ 123.178139] __up_console_sem+0x6e/0x80 [ 123.178154] console_unlock+0x46a/0x590 [ 123.178170] vprintk_emit+0x1bd/0x560 [ 123.178186] vprintk+0x84/0xa0 [ 123.178201] _printk+0xba/0xf1 [ 123.178211] kauditd_hold_skb.cold+0x3f/0x4e [ 123.178227] kauditd_send_queue+0x233/0x290 [ 123.178242] kauditd_thread+0x5da/0x9a0 [ 123.178255] kthread+0x2ed/0x3a0 [ 123.178269] ret_from_fork+0x22/0x30 [ 123.178281] [ 123.178281] -> #0 ((console_sem).lock){....}-{2:2}: [ 123.178294] __lock_acquire+0x2a02/0x5e70 [ 123.178310] lock_acquire+0x1a2/0x530 [ 123.178326] _raw_spin_lock_irqsave+0x39/0x60 [ 123.178343] down_trylock+0xe/0x70 [ 123.178355] __down_trylock_console_sem+0x3b/0xd0 [ 123.178371] vprintk_emit+0x16b/0x560 [ 123.178386] vprintk+0x84/0xa0 [ 123.178402] _printk+0xba/0xf1 [ 123.178411] report_bug.cold+0x72/0xab [ 123.178426] handle_bug+0x3c/0x70 [ 123.178440] exc_invalid_op+0x14/0x50 [ 123.178456] asm_exc_invalid_op+0x16/0x20 [ 123.178469] group_sched_out.part.0+0x2c7/0x460 [ 123.178479] ctx_sched_out+0x8f1/0xc10 [ 123.178489] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.178502] __schedule+0xedd/0x2470 [ 123.178513] schedule+0xda/0x1b0 [ 123.178525] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.178536] syscall_exit_to_user_mode+0x19/0x40 [ 123.178546] do_syscall_64+0x48/0x90 [ 123.178561] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.178580] [ 123.178580] other info that might help us debug this: [ 123.178580] [ 123.178583] Chain exists of: [ 123.178583] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 123.178583] [ 123.178597] Possible unsafe locking scenario: [ 123.178597] [ 123.178599] CPU0 CPU1 [ 123.178602] ---- ---- [ 123.178604] lock(&ctx->lock); [ 123.178609] lock(&rq->__lock); [ 123.178615] lock(&ctx->lock); [ 123.178622] lock((console_sem).lock); [ 123.178627] [ 123.178627] *** DEADLOCK *** [ 123.178627] [ 123.178629] 2 locks held by syz-executor.4/3891: [ 123.178636] #0: ffff88806cf37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 123.178663] #1: ffff88800f883020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.178691] [ 123.178691] stack backtrace: [ 123.178694] CPU: 1 PID: 3891 Comm: syz-executor.4 Not tainted 6.0.0-rc6-next-20220920 #1 [ 123.178706] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.178714] Call Trace: [ 123.178717] [ 123.178722] dump_stack_lvl+0x8b/0xb3 [ 123.178738] check_noncircular+0x263/0x2e0 [ 123.178755] ? format_decode+0x26c/0xb50 [ 123.178770] ? print_circular_bug+0x450/0x450 [ 123.178787] ? enable_ptr_key_workfn+0x20/0x20 [ 123.178802] ? format_decode+0x26c/0xb50 [ 123.178818] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 123.178835] __lock_acquire+0x2a02/0x5e70 [ 123.178857] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 123.178879] lock_acquire+0x1a2/0x530 [ 123.178895] ? down_trylock+0xe/0x70 [ 123.178910] ? lock_release+0x750/0x750 [ 123.178930] ? vprintk+0x84/0xa0 [ 123.178947] _raw_spin_lock_irqsave+0x39/0x60 [ 123.178965] ? down_trylock+0xe/0x70 [ 123.178978] down_trylock+0xe/0x70 [ 123.178991] ? vprintk+0x84/0xa0 [ 123.179008] __down_trylock_console_sem+0x3b/0xd0 [ 123.179025] vprintk_emit+0x16b/0x560 [ 123.179044] vprintk+0x84/0xa0 [ 123.179061] _printk+0xba/0xf1 [ 123.179071] ? record_print_text.cold+0x16/0x16 [ 123.179086] ? report_bug.cold+0x66/0xab [ 123.179102] ? group_sched_out.part.0+0x2c7/0x460 [ 123.179114] report_bug.cold+0x72/0xab [ 123.179131] handle_bug+0x3c/0x70 [ 123.179147] exc_invalid_op+0x14/0x50 [ 123.179163] asm_exc_invalid_op+0x16/0x20 [ 123.179174] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.179187] Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 0b 13 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 123.179199] RSP: 0018:ffff88800e1bfc48 EFLAGS: 00010006 [ 123.179208] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.179215] RDX: ffff88803d3d0000 RSI: ffffffff815662c7 RDI: 0000000000000005 [ 123.179223] RBP: ffff888017e38000 R08: 0000000000000005 R09: 0000000000000001 [ 123.179230] R10: 0000000000000000 R11: ffffffff865ae05b R12: ffff88800f883000 [ 123.179238] R13: ffff88806cf3d140 R14: ffffffff8547cec0 R15: 0000000000000002 [ 123.179248] ? group_sched_out.part.0+0x2c7/0x460 [ 123.179262] ? group_sched_out.part.0+0x2c7/0x460 [ 123.179275] ctx_sched_out+0x8f1/0xc10 [ 123.179288] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.179303] ? lock_is_held_type+0xd7/0x130 [ 123.179315] ? __perf_cgroup_move+0x160/0x160 [ 123.179327] ? set_next_entity+0x304/0x550 [ 123.179345] ? update_curr+0x267/0x740 [ 123.179363] ? lock_is_held_type+0xd7/0x130 [ 123.179375] __schedule+0xedd/0x2470 [ 123.179390] ? io_schedule_timeout+0x150/0x150 [ 123.179405] ? rcu_read_lock_sched_held+0x3e/0x80 [ 123.179425] schedule+0xda/0x1b0 [ 123.179438] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.179450] syscall_exit_to_user_mode+0x19/0x40 [ 123.179462] do_syscall_64+0x48/0x90 [ 123.179478] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.179498] RIP: 0033:0x7f7d1c9eab19 [ 123.179506] 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 [ 123.179517] RSP: 002b:00007f7d19f60218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.179528] RAX: 0000000000000001 RBX: 00007f7d1cafdf68 RCX: 00007f7d1c9eab19 [ 123.179535] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7d1cafdf6c [ 123.179542] RBP: 00007f7d1cafdf60 R08: 000000000000000e R09: 0000000000000000 [ 123.179549] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f7d1cafdf6c [ 123.179557] R13: 00007ffc6cd9b58f R14: 00007f7d19f60300 R15: 0000000000022000 [ 123.179569] [ 123.235758] WARNING: CPU: 1 PID: 3891 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 123.236445] Modules linked in: [ 123.236688] CPU: 1 PID: 3891 Comm: syz-executor.4 Not tainted 6.0.0-rc6-next-20220920 #1 [ 123.237296] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.238138] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.238555] Code: 5e 41 5f e9 9b b9 ef ff e8 96 b9 ef ff 65 8b 1d 0b 13 ac 7e 31 ff 89 de e8 36 b6 ef ff 85 db 0f 84 8a 00 00 00 e8 79 b9 ef ff <0f> 0b e9 a5 fe ff ff e8 6d b9 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 123.239935] RSP: 0018:ffff88800e1bfc48 EFLAGS: 00010006 [ 123.240340] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.240884] RDX: ffff88803d3d0000 RSI: ffffffff815662c7 RDI: 0000000000000005 [ 123.241437] RBP: ffff888017e38000 R08: 0000000000000005 R09: 0000000000000001 [ 123.241976] R10: 0000000000000000 R11: ffffffff865ae05b R12: ffff88800f883000 [ 123.242514] R13: ffff88806cf3d140 R14: ffffffff8547cec0 R15: 0000000000000002 [ 123.243049] FS: 00007f7d19f60700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 123.243654] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.244102] CR2: 00007fa40f2a5650 CR3: 000000003e4ac000 CR4: 0000000000350ee0 [ 123.244639] Call Trace: [ 123.244837] [ 123.245020] ctx_sched_out+0x8f1/0xc10 [ 123.245330] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.245721] ? lock_is_held_type+0xd7/0x130 [ 123.246049] ? __perf_cgroup_move+0x160/0x160 [ 123.246392] ? set_next_entity+0x304/0x550 [ 123.246725] ? update_curr+0x267/0x740 [ 123.247036] ? lock_is_held_type+0xd7/0x130 [ 123.247366] __schedule+0xedd/0x2470 [ 123.247655] ? io_schedule_timeout+0x150/0x150 [ 123.248012] ? rcu_read_lock_sched_held+0x3e/0x80 [ 123.248380] schedule+0xda/0x1b0 [ 123.248647] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.249025] syscall_exit_to_user_mode+0x19/0x40 [ 123.249393] do_syscall_64+0x48/0x90 [ 123.249692] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.250093] RIP: 0033:0x7f7d1c9eab19 [ 123.250384] 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 [ 123.251764] RSP: 002b:00007f7d19f60218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.252342] RAX: 0000000000000001 RBX: 00007f7d1cafdf68 RCX: 00007f7d1c9eab19 [ 123.252850] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7d1cafdf6c [ 123.253363] RBP: 00007f7d1cafdf60 R08: 000000000000000e R09: 0000000000000000 [ 123.253877] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f7d1cafdf6c [ 123.254389] R13: 00007ffc6cd9b58f R14: 00007f7d19f60300 R15: 0000000000022000 [ 123.254894] [ 123.255070] irq event stamp: 666 [ 123.255314] hardirqs last enabled at (665): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 123.255969] hardirqs last disabled at (666): [] __schedule+0x1225/0x2470 [ 123.256555] softirqs last enabled at (308): [] __irq_exit_rcu+0x11b/0x180 [ 123.257167] softirqs last disabled at (299): [] __irq_exit_rcu+0x11b/0x180 [ 123.257814] ---[ end trace 0000000000000000 ]--- [ 123.293098] hrtimer: interrupt took 21060 ns [ 123.394021] sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s [ 123.394920] sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] [ 123.395421] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present [ 123.395894] sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00 [ 123.396440] I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 32 prio class 2 [ 123.402470] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.402873] I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.403508] Buffer I/O error on dev sr0, logical block 0, async page read [ 123.409187] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.409602] I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.410231] Buffer I/O error on dev sr0, logical block 1, async page read [ 123.410805] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.411238] I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.411858] Buffer I/O error on dev sr0, logical block 2, async page read [ 123.412464] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.412869] I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.413518] Buffer I/O error on dev sr0, logical block 3, async page read [ 123.414111] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.414531] I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.415159] Buffer I/O error on dev sr0, logical block 4, async page read [ 123.415734] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.416170] I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.416791] Buffer I/O error on dev sr0, logical block 5, async page read [ 123.417400] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.417807] I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.418434] Buffer I/O error on dev sr0, logical block 6, async page read [ 123.419014] sr 1:0:0:0: [sr0] tag#0 unaligned transfer [ 123.419451] I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 123.420070] Buffer I/O error on dev sr0, logical block 7, async page read [ 129.000274] Bluetooth: hci3: Opcode 0x c03 failed: -110 VM DIAGNOSIS: 12:16:03 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000001 RCX=ffffffff84263897 RDX=ffffed100d9e6fa1 RSI=0000000000000004 RDI=ffff88806cf37d00 RBP=ffff88806cf37d00 RSP=ffff88800861f868 R8 =0000000000000000 R9 =ffff88806cf37d03 R10=ffffed100d9e6fa0 R11=0000000000000001 R12=0000000000000003 R13=ffffed100d9e6fa0 R14=0000000000000001 R15=1ffff110010c3f0e RIP=ffffffff84263914 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 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=00007fc3c719d228 CR3=0000000035336000 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 00524f5252450040 0000000000000000 YMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM02=0000000000000000 0000000000000000 000000524f525245 0000000000000000 YMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM06=0000000000000000 0000000000000000 0000000000000000 000000524f525245 YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM08=0000000000000000 0000000000000000 0000000000000000 00524f5252450040 YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 info registers vcpu 1 RAX=0000000000000065 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b1551 RDI=ffffffff87643ba0 RBP=ffffffff87643b60 RSP=ffff88800e1bf698 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000065 R11=0000000000000001 R12=0000000000000065 R13=ffffffff87643b60 R14=0000000000000010 R15=ffffffff822b1540 RIP=ffffffff822b15a9 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 00007f7d19f60700 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=00007fa40f2a5650 CR3=000000003e4ac000 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 00007f7d1cad17c0 00007f7d1cad17c8 YMM02=0000000000000000 0000000000000000 00007f7d1cad17e0 00007f7d1cad17c0 YMM03=0000000000000000 0000000000000000 00007f7d1cad17c8 00007f7d1cad17c0 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