Warning: Permanently added '[localhost]:61682' (ECDSA) to the list of known hosts. 2022/09/19 15:15:10 fuzzer started 2022/09/19 15:15:10 dialing manager at localhost:42121 syzkaller login: [ 35.127465] cgroup: Unknown subsys name 'net' [ 35.236062] cgroup: Unknown subsys name 'rlimit' 2022/09/19 15:15:25 syscalls: 2215 2022/09/19 15:15:25 code coverage: enabled 2022/09/19 15:15:25 comparison tracing: enabled 2022/09/19 15:15:25 extra coverage: enabled 2022/09/19 15:15:25 setuid sandbox: enabled 2022/09/19 15:15:25 namespace sandbox: enabled 2022/09/19 15:15:25 Android sandbox: enabled 2022/09/19 15:15:25 fault injection: enabled 2022/09/19 15:15:25 leak checking: enabled 2022/09/19 15:15:25 net packet injection: enabled 2022/09/19 15:15:25 net device setup: enabled 2022/09/19 15:15:25 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/19 15:15:25 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/19 15:15:25 USB emulation: enabled 2022/09/19 15:15:25 hci packet injection: enabled 2022/09/19 15:15:25 wifi device emulation: failed to parse kernel version (6.0.0-rc6-next-20220919) 2022/09/19 15:15:25 802.15.4 emulation: enabled 2022/09/19 15:15:25 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/19 15:15:25 fetching corpus: 37, signal 18092/21780 (executing program) 2022/09/19 15:15:26 fetching corpus: 87, signal 40024/45013 (executing program) 2022/09/19 15:15:26 fetching corpus: 135, signal 48267/54649 (executing program) 2022/09/19 15:15:26 fetching corpus: 184, signal 59243/66746 (executing program) 2022/09/19 15:15:26 fetching corpus: 233, signal 65050/73735 (executing program) 2022/09/19 15:15:26 fetching corpus: 283, signal 70852/80661 (executing program) 2022/09/19 15:15:26 fetching corpus: 332, signal 76605/87438 (executing program) 2022/09/19 15:15:26 fetching corpus: 382, signal 81926/93741 (executing program) 2022/09/19 15:15:26 fetching corpus: 432, signal 88014/100669 (executing program) 2022/09/19 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15:15:41 fetching corpus: 5824, signal 230064/242350 (executing program) 2022/09/19 15:15:41 fetching corpus: 5874, signal 230543/242464 (executing program) 2022/09/19 15:15:41 fetching corpus: 5924, signal 230954/242464 (executing program) 2022/09/19 15:15:41 fetching corpus: 5974, signal 231505/242471 (executing program) 2022/09/19 15:15:41 fetching corpus: 6024, signal 232673/242475 (executing program) 2022/09/19 15:15:41 fetching corpus: 6074, signal 233372/242547 (executing program) 2022/09/19 15:15:42 fetching corpus: 6124, signal 234798/242547 (executing program) 2022/09/19 15:15:42 fetching corpus: 6173, signal 235387/242559 (executing program) 2022/09/19 15:15:42 fetching corpus: 6191, signal 235600/242561 (executing program) 2022/09/19 15:15:42 fetching corpus: 6191, signal 235600/242561 (executing program) 2022/09/19 15:15:44 starting 8 fuzzer processes 15:15:44 executing program 0: kcmp$KCMP_EPOLL_TFD(0x0, 0x0, 0x7, 0xffffffffffffffff, 0x0) 15:15:44 executing program 1: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x80000000, 0x81}, 0x703, 0x0, 0x0, 0x9, 0x7}, 0x0, 0xffffffefffffffff, 0xffffffffffffffff, 0x0) r0 = perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x2, 0x32261, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) write(r0, &(0x7f00000011c0)="25f603b7fa9fa3548414f40992c1cf45f19705c7eee437fda4265b7eb2e7bb1ca4ec9b16e7d8334d052aeb04b0d5037a01019288274bf0cb88e4b0d450527f3e3100845f824bd7c768b941db8d3d5f400ea29894fe6bc6553b229e9e616dbeb1b077c3ff25d19fa7ce2453d6417761", 0x6f) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x101042, 0x0) fcntl$dupfd(r0, 0x0, r1) write(r1, &(0x7f0000000080)="01", 0x41030) close(r1) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f00000000c0)='./file0\x00', 0x0, 0x2, &(0x7f0000000040)=[{&(0x7f0000010000)="601c6d6b646f736689254300080120000400004000f8000020004000030000000000000001", 0x25}, {0x0, 0x0, 0x10000}], 0x0, &(0x7f0000000040)=ANY=[]) creat(&(0x7f0000000100)='./file0/file0\x00', 0xa) openat(0xffffffffffffffff, &(0x7f0000000140)='./file0\x00', 0x40, 0x13d) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) readahead(0xffffffffffffffff, 0x1, 0x3) [ 68.501397] audit: type=1400 audit(1663600544.447:6): avc: denied { execmem } for pid=285 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 15:15:44 executing program 2: clone3(&(0x7f0000000640)={0x123363500, &(0x7f00000000c0), 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x58) write$P9_RREADDIR(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="68000000290000000008000000000000000000000000000000000000000007002e2f66696c65300001004000000000000000000000000000002100000007002e2f66696c653000000000000000000000000000b4e9"], 0x68) r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) setsockopt$inet_mreqn(r0, 0x0, 0x40, &(0x7f0000000080)={@rand_addr, @remote}, 0xc) openat(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$tty20(0xc, 0x4, 0x0) 15:15:44 executing program 3: syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0) perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x9}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = perf_event_open(&(0x7f0000000280)={0x1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x2, 0x30656, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000040), 0x8}, 0x0, 0x0, 0x10}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x101042, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000001200)=ANY=[@ANYBLOB, @ANYRES32, @ANYRES32=0xee00, @ANYRES32, @ANYBLOB='n/file0\x00']) fcntl$dupfd(r0, 0x406, r1) getgid() perf_event_open(&(0x7f0000001840)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000001800), 0xd}}, 0x0, 0x0, 0xffffffffffffffff, 0x3) write(r1, &(0x7f0000000080)="01", 0x41030) 15:15:44 executing program 4: pipe(&(0x7f0000001600)={0xffffffffffffffff, 0xffffffffffffffff}) vmsplice(r1, &(0x7f0000000100)=[{&(0x7f0000000140)="84", 0x20000141}], 0x1, 0x0) close_range(r0, 0xffffffffffffffff, 0x0) 15:15:44 executing program 5: r0 = socket$unix(0x1, 0x0, 0x0) syz_io_uring_setup(0x698, &(0x7f0000000180), &(0x7f0000ffe000/0x1000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000000200), &(0x7f0000000240)=0x0) syz_io_uring_submit(0x0, r1, &(0x7f0000000280)=@IORING_OP_READ=@use_registered_buffer={0x16, 0x2, 0x4004, @fd=r0, 0x0, 0x0, 0x0, 0xd, 0x0, {0x2}}, 0x0) 15:15:44 executing program 6: membarrier(0x40, 0x0) membarrier(0x20, 0x0) 15:15:44 executing program 7: r0 = memfd_create(&(0x7f0000000040)='/dev/vcsa\x00', 0x0) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x401a012, r0, 0x0) [ 69.720445] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 69.723487] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 69.725024] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 69.728167] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 69.730769] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 69.732224] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 69.738912] Bluetooth: hci0: HCI_REQ-0x0c1a [ 69.867758] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 69.869448] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 69.870953] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 69.872249] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 69.873823] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 69.875661] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 69.876673] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 69.877696] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 69.878779] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 69.880230] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 69.881297] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 69.882296] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 69.883358] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 69.890074] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 69.892480] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 69.894471] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 69.895886] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 69.896221] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 69.897920] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 69.899919] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 69.901033] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 69.901781] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 69.902445] Bluetooth: hci4: HCI_REQ-0x0c1a [ 69.903540] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 69.909814] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 69.911117] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 69.911526] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 69.912924] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 69.917511] Bluetooth: hci3: HCI_REQ-0x0c1a [ 69.918548] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 69.919950] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 69.926522] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 69.932106] Bluetooth: hci5: HCI_REQ-0x0c1a [ 69.936119] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 69.936711] Bluetooth: hci2: HCI_REQ-0x0c1a [ 69.937520] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 69.946197] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 69.947420] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 69.948819] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 69.952985] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 69.963126] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 69.963637] Bluetooth: hci7: HCI_REQ-0x0c1a [ 69.965147] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 69.967477] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 69.974687] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 69.983692] Bluetooth: hci6: HCI_REQ-0x0c1a [ 70.002401] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 70.004195] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 70.009356] Bluetooth: hci1: HCI_REQ-0x0c1a [ 71.809229] Bluetooth: hci0: command 0x0409 tx timeout [ 71.936651] Bluetooth: hci5: command 0x0409 tx timeout [ 71.936747] Bluetooth: hci3: command 0x0409 tx timeout [ 71.938145] Bluetooth: hci4: command 0x0409 tx timeout [ 72.000650] Bluetooth: hci6: command 0x0409 tx timeout [ 72.000722] Bluetooth: hci7: command 0x0409 tx timeout [ 72.003032] Bluetooth: hci2: command 0x0409 tx timeout [ 72.064811] Bluetooth: hci1: command 0x0409 tx timeout [ 73.857616] Bluetooth: hci0: command 0x041b tx timeout [ 73.984661] Bluetooth: hci4: command 0x041b tx timeout [ 73.985181] Bluetooth: hci3: command 0x041b tx timeout [ 73.986314] Bluetooth: hci5: command 0x041b tx timeout [ 74.049634] Bluetooth: hci2: command 0x041b tx timeout [ 74.050156] Bluetooth: hci7: command 0x041b tx timeout [ 74.051155] Bluetooth: hci6: command 0x041b tx timeout [ 74.113659] Bluetooth: hci1: command 0x041b tx timeout [ 75.905770] Bluetooth: hci0: command 0x040f tx timeout [ 76.032628] Bluetooth: hci5: command 0x040f tx timeout [ 76.033131] Bluetooth: hci3: command 0x040f tx timeout [ 76.033691] Bluetooth: hci4: command 0x040f tx timeout [ 76.097653] Bluetooth: hci6: command 0x040f tx timeout [ 76.098154] Bluetooth: hci7: command 0x040f tx timeout [ 76.099026] Bluetooth: hci2: command 0x040f tx timeout [ 76.160629] Bluetooth: hci1: command 0x040f tx timeout [ 77.952659] Bluetooth: hci0: command 0x0419 tx timeout [ 78.080749] Bluetooth: hci4: command 0x0419 tx timeout [ 78.081324] Bluetooth: hci3: command 0x0419 tx timeout [ 78.083011] Bluetooth: hci5: command 0x0419 tx timeout [ 78.145626] Bluetooth: hci2: command 0x0419 tx timeout [ 78.146117] Bluetooth: hci7: command 0x0419 tx timeout [ 78.146531] Bluetooth: hci6: command 0x0419 tx timeout [ 78.208645] Bluetooth: hci1: command 0x0419 tx timeout [ 123.196622] audit: type=1400 audit(1663600599.142:7): avc: denied { open } for pid=3856 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 123.199427] audit: type=1400 audit(1663600599.143:8): avc: denied { kernel } for pid=3856 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 123.222027] ------------[ cut here ]------------ [ 123.222062] [ 123.222068] ====================================================== [ 123.222074] WARNING: possible circular locking dependency detected [ 123.222081] 6.0.0-rc6-next-20220919 #1 Not tainted [ 123.222093] ------------------------------------------------------ [ 123.222098] syz-executor.1/3859 is trying to acquire lock: [ 123.222110] ffffffff853fa838 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 123.222170] [ 123.222170] but task is already holding lock: [ 123.222175] ffff888040ec5c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.222224] [ 123.222224] which lock already depends on the new lock. [ 123.222224] [ 123.222229] [ 123.222229] the existing dependency chain (in reverse order) is: [ 123.222235] [ 123.222235] -> #3 (&ctx->lock){....}-{2:2}: [ 123.222260] _raw_spin_lock+0x2a/0x40 [ 123.222294] __perf_event_task_sched_out+0x53b/0x18d0 [ 123.222317] __schedule+0xedd/0x2470 [ 123.222335] schedule+0xda/0x1b0 [ 123.222353] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.222388] syscall_exit_to_user_mode+0x19/0x40 [ 123.222419] do_syscall_64+0x48/0x90 [ 123.222443] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.222510] [ 123.222510] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 123.222536] _raw_spin_lock_nested+0x30/0x40 [ 123.222563] raw_spin_rq_lock_nested+0x1e/0x30 [ 123.222590] task_fork_fair+0x63/0x4d0 [ 123.222619] sched_cgroup_fork+0x3d0/0x540 [ 123.222644] copy_process+0x4183/0x6e20 [ 123.222662] kernel_clone+0xe7/0x890 [ 123.222679] user_mode_thread+0xad/0xf0 [ 123.222697] rest_init+0x24/0x250 [ 123.222727] arch_call_rest_init+0xf/0x14 [ 123.222747] start_kernel+0x4c1/0x4e6 [ 123.222765] secondary_startup_64_no_verify+0xe0/0xeb [ 123.222789] [ 123.222789] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 123.222814] _raw_spin_lock_irqsave+0x39/0x60 [ 123.222841] try_to_wake_up+0xab/0x1920 [ 123.222865] up+0x75/0xb0 [ 123.222885] __up_console_sem+0x6e/0x80 [ 123.222913] console_unlock+0x46a/0x590 [ 123.222941] vt_ioctl+0x2822/0x2ca0 [ 123.222962] tty_ioctl+0x7c4/0x1700 [ 123.222982] __x64_sys_ioctl+0x19a/0x210 [ 123.223009] do_syscall_64+0x3b/0x90 [ 123.223032] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.223063] [ 123.223063] -> #0 ((console_sem).lock){....}-{2:2}: [ 123.223088] __lock_acquire+0x2a02/0x5e70 [ 123.223117] lock_acquire+0x1a2/0x530 [ 123.223146] _raw_spin_lock_irqsave+0x39/0x60 [ 123.223173] down_trylock+0xe/0x70 [ 123.223195] __down_trylock_console_sem+0x3b/0xd0 [ 123.223224] vprintk_emit+0x16b/0x560 [ 123.223253] vprintk+0x84/0xa0 [ 123.223282] _printk+0xba/0xf1 [ 123.223312] report_bug.cold+0x72/0xab [ 123.223335] handle_bug+0x3c/0x70 [ 123.223358] exc_invalid_op+0x14/0x50 [ 123.223382] asm_exc_invalid_op+0x16/0x20 [ 123.223412] group_sched_out.part.0+0x2c7/0x460 [ 123.223431] ctx_sched_out+0x8f1/0xc10 [ 123.223448] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.223470] __schedule+0xedd/0x2470 [ 123.223488] schedule+0xda/0x1b0 [ 123.223506] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.223540] syscall_exit_to_user_mode+0x19/0x40 [ 123.223571] do_syscall_64+0x48/0x90 [ 123.223594] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.223625] [ 123.223625] other info that might help us debug this: [ 123.223625] [ 123.223630] Chain exists of: [ 123.223630] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 123.223630] [ 123.223657] Possible unsafe locking scenario: [ 123.223657] [ 123.223661] CPU0 CPU1 [ 123.223665] ---- ---- [ 123.223669] lock(&ctx->lock); [ 123.223679] lock(&rq->__lock); [ 123.223690] lock(&ctx->lock); [ 123.223702] lock((console_sem).lock); [ 123.223712] [ 123.223712] *** DEADLOCK *** [ 123.223712] [ 123.223715] 2 locks held by syz-executor.1/3859: [ 123.223728] #0: ffff88806ce37d18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 123.223776] #1: ffff888040ec5c20 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 123.223826] [ 123.223826] stack backtrace: [ 123.223831] CPU: 0 PID: 3859 Comm: syz-executor.1 Not tainted 6.0.0-rc6-next-20220919 #1 [ 123.223854] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.223868] Call Trace: [ 123.223874] [ 123.223882] dump_stack_lvl+0x8b/0xb3 [ 123.223909] check_noncircular+0x263/0x2e0 [ 123.223939] ? format_decode+0x26c/0xb50 [ 123.223965] ? print_circular_bug+0x450/0x450 [ 123.223996] ? enable_ptr_key_workfn+0x20/0x20 [ 123.224024] ? format_decode+0x26c/0xb50 [ 123.224053] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 123.224084] __lock_acquire+0x2a02/0x5e70 [ 123.224124] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 123.224164] lock_acquire+0x1a2/0x530 [ 123.224194] ? down_trylock+0xe/0x70 [ 123.224221] ? lock_release+0x750/0x750 [ 123.224258] ? vprintk+0x84/0xa0 [ 123.224290] _raw_spin_lock_irqsave+0x39/0x60 [ 123.224319] ? down_trylock+0xe/0x70 [ 123.224344] down_trylock+0xe/0x70 [ 123.224368] ? vprintk+0x84/0xa0 [ 123.224398] __down_trylock_console_sem+0x3b/0xd0 [ 123.224430] vprintk_emit+0x16b/0x560 [ 123.224464] vprintk+0x84/0xa0 [ 123.224496] _printk+0xba/0xf1 [ 123.224528] ? record_print_text.cold+0x16/0x16 [ 123.224568] ? report_bug.cold+0x66/0xab [ 123.224595] ? group_sched_out.part.0+0x2c7/0x460 [ 123.224616] report_bug.cold+0x72/0xab [ 123.224643] handle_bug+0x3c/0x70 [ 123.224669] exc_invalid_op+0x14/0x50 [ 123.224696] asm_exc_invalid_op+0x16/0x20 [ 123.224727] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.224751] 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 [ 123.224771] RSP: 0018:ffff8880419afc48 EFLAGS: 00010006 [ 123.224788] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.224802] RDX: ffff88801d26d040 RSI: ffffffff81566077 RDI: 0000000000000005 [ 123.224817] RBP: ffff888008660000 R08: 0000000000000005 R09: 0000000000000001 [ 123.224830] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff888040ec5c00 [ 123.224844] R13: ffff88806ce3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 123.224865] ? group_sched_out.part.0+0x2c7/0x460 [ 123.224889] ? group_sched_out.part.0+0x2c7/0x460 [ 123.224913] ctx_sched_out+0x8f1/0xc10 [ 123.224936] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.224964] ? lock_is_held_type+0xd7/0x130 [ 123.224998] ? __perf_cgroup_move+0x160/0x160 [ 123.225019] ? set_next_entity+0x304/0x550 [ 123.225051] ? update_curr+0x267/0x740 [ 123.225084] ? lock_is_held_type+0xd7/0x130 [ 123.225118] __schedule+0xedd/0x2470 [ 123.225143] ? io_schedule_timeout+0x150/0x150 [ 123.225166] ? trace_rcu_dyntick+0x1a7/0x250 [ 123.225204] schedule+0xda/0x1b0 [ 123.225225] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.225262] syscall_exit_to_user_mode+0x19/0x40 [ 123.225295] do_syscall_64+0x48/0x90 [ 123.225321] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.225353] RIP: 0033:0x7fdbce899b19 [ 123.225369] 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 [ 123.225389] RSP: 002b:00007fdbcbe0f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.225409] RAX: 0000000000000001 RBX: 00007fdbce9acf68 RCX: 00007fdbce899b19 [ 123.225423] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdbce9acf6c [ 123.225437] RBP: 00007fdbce9acf60 R08: 000000000000000e R09: 0000000000000000 [ 123.225451] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fdbce9acf6c [ 123.225464] R13: 00007ffd9550e50f R14: 00007fdbcbe0f300 R15: 0000000000022000 [ 123.225488] [ 123.323128] WARNING: CPU: 0 PID: 3859 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 123.324333] Modules linked in: [ 123.324764] CPU: 0 PID: 3859 Comm: syz-executor.1 Not tainted 6.0.0-rc6-next-20220919 #1 [ 123.325810] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 123.327270] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 123.327978] 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 [ 123.330315] RSP: 0018:ffff8880419afc48 EFLAGS: 00010006 [ 123.331015] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.331939] RDX: ffff88801d26d040 RSI: ffffffff81566077 RDI: 0000000000000005 [ 123.332865] RBP: ffff888008660000 R08: 0000000000000005 R09: 0000000000000001 [ 123.333794] R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff888040ec5c00 [ 123.334722] R13: ffff88806ce3d140 R14: ffffffff8547c620 R15: 0000000000000002 [ 123.335675] FS: 00007fdbcbe0f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 123.336737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.337507] CR2: 00007f2aa83a3320 CR3: 00000000184a4000 CR4: 0000000000350ef0 [ 123.338437] Call Trace: [ 123.338812] [ 123.339123] ctx_sched_out+0x8f1/0xc10 [ 123.339644] __perf_event_task_sched_out+0x6d0/0x18d0 [ 123.340329] ? lock_is_held_type+0xd7/0x130 [ 123.340910] ? __perf_cgroup_move+0x160/0x160 [ 123.341516] ? set_next_entity+0x304/0x550 [ 123.342098] ? update_curr+0x267/0x740 [ 123.342660] ? lock_is_held_type+0xd7/0x130 [ 123.343238] __schedule+0xedd/0x2470 [ 123.343743] ? io_schedule_timeout+0x150/0x150 [ 123.344350] ? trace_rcu_dyntick+0x1a7/0x250 [ 123.344959] schedule+0xda/0x1b0 [ 123.345431] exit_to_user_mode_prepare+0x114/0x1a0 [ 123.346103] syscall_exit_to_user_mode+0x19/0x40 [ 123.346776] do_syscall_64+0x48/0x90 [ 123.347282] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 123.347987] RIP: 0033:0x7fdbce899b19 [ 123.348487] 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 [ 123.350872] RSP: 002b:00007fdbcbe0f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 123.351879] RAX: 0000000000000001 RBX: 00007fdbce9acf68 RCX: 00007fdbce899b19 [ 123.352825] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdbce9acf6c [ 123.353770] RBP: 00007fdbce9acf60 R08: 000000000000000e R09: 0000000000000000 [ 123.354725] R10: 0000000000000003 R11: 0000000000000246 R12: 00007fdbce9acf6c [ 123.355669] R13: 00007ffd9550e50f R14: 00007fdbcbe0f300 R15: 0000000000022000 [ 123.356621] [ 123.356943] irq event stamp: 804 [ 123.357391] hardirqs last enabled at (803): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 123.358649] hardirqs last disabled at (804): [] __schedule+0x1225/0x2470 [ 123.359730] softirqs last enabled at (614): [] __irq_exit_rcu+0x11b/0x180 [ 123.360856] softirqs last disabled at (579): [] __irq_exit_rcu+0x11b/0x180 [ 123.361987] ---[ end trace 0000000000000000 ]--- [ 123.625860] loop1: detected capacity change from 0 to 256 [ 123.654827] FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) [ 123.711570] hrtimer: interrupt took 18866 ns [ 123.928833] FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) VM DIAGNOSIS: 15:16:39 Registers: info registers vcpu 0 RAX=dffffc0000000060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd RSI=ffffffff822b2dec RDI=ffffffff87641ba0 RBP=ffffffff87641b60 RSP=ffff8880419af640 R8 =0000000000000004 R9 =0000000000000010 R10=0000000000000010 R11=0000000000000001 R12=0000000000002710 R13=0000000000000020 R14=fffffbfff0ec83c3 R15=dffffc0000000000 RIP=ffffffff822b2e41 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 00007fdbcbe0f700 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=00007f2aa83a3320 CR3=00000000184a4000 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 00007fdbce9807c0 00007fdbce9807c8 YMM02=0000000000000000 0000000000000000 00007fdbce9807e0 00007fdbce9807c0 YMM03=0000000000000000 0000000000000000 00007fdbce9807c8 00007fdbce9807c0 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=0000000000000000 RBX=ffff8880419676e8 RCX=0000000000000000 RDX=1ffff1100832cede RSI=ffffffff81784dbe RDI=ffff8880419676f0 RBP=0000000000000000 RSP=ffff888041967600 R8 =ffffffff85ee0f54 R9 =ffffffff85ee0f58 R10=ffffed100832ced1 R11=ffff888041967660 R12=ffff8880419676e8 R13=0000000000000000 R14=ffff888041069ac0 R15=ffff88801039e870 RIP=ffffffff8135b43b RFL=00000287 [--S--PC] 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 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=00007feffbdb71f0 CR3=000000001b934000 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 756e696c2d34365f 3638782f62696c2f YMM01=0000000000000000 0000000000000000 6461657268747062 696c2f756e672d78 YMM02=0000000000000000 0000000000000000 00302e6f732e6461 657268747062696c YMM03=0000000000000000 0000000000000000 2f756e672d78756e 696c2d34365f3638 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