Debian GNU/Linux 11 syzkaller ttyS0 Warning: Permanently added '[localhost]:36204' (ECDSA) to the list of known hosts. 2022/09/13 17:44:48 fuzzer started 2022/09/13 17:44:49 dialing manager at localhost:36597 syzkaller login: [ 35.737075] cgroup: Unknown subsys name 'net' [ 35.823598] cgroup: Unknown subsys name 'rlimit' 2022/09/13 17:45:03 syscalls: 2215 2022/09/13 17:45:03 code coverage: enabled 2022/09/13 17:45:03 comparison tracing: enabled 2022/09/13 17:45:03 extra coverage: enabled 2022/09/13 17:45:03 setuid sandbox: enabled 2022/09/13 17:45:03 namespace sandbox: enabled 2022/09/13 17:45:03 Android sandbox: enabled 2022/09/13 17:45:03 fault injection: enabled 2022/09/13 17:45:03 leak checking: enabled 2022/09/13 17:45:03 net packet injection: enabled 2022/09/13 17:45:03 net device setup: enabled 2022/09/13 17:45:03 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2022/09/13 17:45:03 devlink PCI setup: PCI device 0000:00:10.0 is not available 2022/09/13 17:45:03 USB emulation: enabled 2022/09/13 17:45:03 hci packet injection: enabled 2022/09/13 17:45:03 wifi device emulation: failed to parse kernel version (6.0.0-rc5-next-20220913) 2022/09/13 17:45:03 802.15.4 emulation: enabled 2022/09/13 17:45:03 fetching corpus: 0, signal 0/2000 (executing program) 2022/09/13 17:45:03 fetching corpus: 50, signal 30091/33658 (executing program) 2022/09/13 17:45:03 fetching corpus: 100, signal 42576/47614 (executing program) 2022/09/13 17:45:03 fetching corpus: 150, signal 49952/56482 (executing program) 2022/09/13 17:45:04 fetching corpus: 200, signal 56937/64873 (executing program) 2022/09/13 17:45:04 fetching corpus: 250, signal 64640/73862 (executing program) 2022/09/13 17:45:04 fetching corpus: 300, signal 71819/82173 (executing program) 2022/09/13 17:45:04 fetching corpus: 350, signal 76445/87998 (executing program) 2022/09/13 17:45:04 fetching corpus: 400, signal 83129/95720 (executing program) 2022/09/13 17:45:04 fetching corpus: 450, signal 86035/99780 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fetching corpus: 8200, signal 265002/277053 (executing program) 2022/09/13 17:45:26 fetching corpus: 8250, signal 265305/277053 (executing program) 2022/09/13 17:45:26 fetching corpus: 8300, signal 265926/277116 (executing program) 2022/09/13 17:45:27 fetching corpus: 8350, signal 266561/277126 (executing program) 2022/09/13 17:45:27 fetching corpus: 8400, signal 266861/277203 (executing program) 2022/09/13 17:45:27 fetching corpus: 8450, signal 267476/277203 (executing program) 2022/09/13 17:45:27 fetching corpus: 8488, signal 267835/277203 (executing program) 2022/09/13 17:45:27 fetching corpus: 8489, signal 267839/277203 (executing program) 2022/09/13 17:45:27 fetching corpus: 8489, signal 267839/277203 (executing program) 2022/09/13 17:45:29 starting 8 fuzzer processes 17:45:29 executing program 0: r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x26e1, 0x0) ioctl$EXT4_IOC_GETSTATE(r0, 0x40046629, &(0x7f0000002000)) 17:45:29 executing program 1: r0 = fsopen(&(0x7f0000000000)='ramfs\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='mand\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) 17:45:29 executing program 2: r0 = eventfd(0x0) write(r0, &(0x7f0000000000)="65eeed874f8fadae", 0x8) write(r0, &(0x7f0000000400)="7afcd521dc9e0dce", 0x8) write$binfmt_script(r0, &(0x7f0000000200)={'#! ', './file0'}, 0xb) 17:45:29 executing program 3: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) mremap(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1002, 0x3, &(0x7f0000fff000/0x1000)=nil) mlock(&(0x7f0000ffd000/0x2000)=nil, 0x2000) getpid() r0 = fork() r1 = getpid() kcmp(r1, r0, 0x4, 0xffffffffffffffff, 0xffffffffffffffff) 17:45:30 executing program 5: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xc1, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x4}, 0x80, 0x0, 0x7, 0x1, 0x0, 0x0, 0x1}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(0x0, 0xffffffffffffffff, 0x6, 0xffffffffffffffff, 0x0) r0 = 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}, 0x603, 0x0, 0x0, 0x1}, 0x0, 0xffffffefffffffff, 0xffffffffffffffff, 0x0) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f00000000c0)='./file0\x00', 0x0, 0x2, &(0x7f0000000040)=[{&(0x7f0000010000)="601c6d6b646f736689254300080120000400004000f8000020004000030000000000000001", 0x25}, {0x0, 0x0, 0x20000010000}], 0x0, &(0x7f0000000040)=ANY=[]) r1 = open_tree(0xffffffffffffffff, &(0x7f0000000140)='./file0/file0\x00', 0x1) fsetxattr$security_ima(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0) ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000180)={0x0, 0x7, 0x6, 0x80000001, 0x0, "28ffb3c706a64eb97fab4b05a34db943696408"}) ioctl$FS_IOC_GETVERSION(0xffffffffffffffff, 0x80087601, &(0x7f0000000100)) perf_event_open(&(0x7f0000000380)={0x0, 0x80, 0xc, 0xa0, 0xba, 0x7, 0x0, 0x7, 0x8, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0xfffffffc, 0x0, @perf_config_ext={0x100000000, 0x5}, 0x1000, 0x0, 0x101, 0x4, 0x3, 0x0, 0x3, 0x0, 0x6, 0x0, 0xffffffff}, 0x0, 0x1, r1, 0x2) fcntl$getflags(0xffffffffffffffff, 0x3) ioctl$FS_IOC_GETVERSION(r0, 0x80087601, &(0x7f0000000200)) r2 = socket$nl_sock_diag(0x10, 0x3, 0x4) r3 = dup(r2) fcntl$dupfd(r3, 0x0, 0xffffffffffffffff) getsockopt$netlink(r2, 0x10e, 0xb, 0x0, &(0x7f0000000040)) 17:45:30 executing program 4: syz_mount_image$ext4(&(0x7f0000000000)='ext4\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x3, &(0x7f0000000200)=[{&(0x7f0000010000)="20000000000100000c000000d40000000f000000010000000000000000000000002000000020000020000000d7f4655fd7f4655f0100ffff53ef010001000000d7f4655f000000000000000001000000000000000b0000000002000028020000028401001b", 0x65, 0x400}, {&(0x7f0000000040)="030000000400000005", 0x9, 0x800}, {0x0, 0x0, 0x80035c0}], 0x0, &(0x7f0000012900)) [ 76.458886] audit: type=1400 audit(1663091130.009:6): avc: denied { execmem } for pid=286 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 17:45:30 executing program 7: perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0x76, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) sched_setaffinity(0x0, 0x8, &(0x7f0000000140)=0x2) 17:45:30 executing program 6: r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000080), 0x1c3c00, 0x0) ioctl$CDROM_DISC_STATUS(r0, 0x1263) [ 77.684422] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 77.687661] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 77.689667] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 77.694634] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 77.696831] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 77.698685] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 77.704284] Bluetooth: hci0: HCI_REQ-0x0c1a [ 77.738357] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 77.740034] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 77.742067] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 77.743540] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 77.745006] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 77.746491] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 77.747470] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 77.748773] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 77.749571] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 77.753058] Bluetooth: hci1: HCI_REQ-0x0c1a [ 77.753754] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 77.755588] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 77.756483] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 77.759701] Bluetooth: hci3: HCI_REQ-0x0c1a [ 77.767836] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 77.769581] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 77.770549] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 77.772547] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 77.773706] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 77.775272] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 77.779067] Bluetooth: hci4: HCI_REQ-0x0c1a [ 77.805140] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 77.840837] Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1 [ 77.842528] Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9 [ 77.843782] Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9 [ 77.845657] Bluetooth: hci6: unexpected cc 0x0c03 length: 249 > 1 [ 77.846525] Bluetooth: hci5: unexpected cc 0x0c03 length: 249 > 1 [ 77.848234] Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4 [ 77.849573] Bluetooth: hci7: unexpected cc 0x0c25 length: 249 > 3 [ 77.862063] Bluetooth: hci5: unexpected cc 0x1003 length: 249 > 9 [ 77.863201] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 77.866084] Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2 [ 77.870478] Bluetooth: hci6: unexpected cc 0x1003 length: 249 > 9 [ 77.871756] Bluetooth: hci5: unexpected cc 0x1001 length: 249 > 9 [ 77.872874] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 77.882056] Bluetooth: hci7: HCI_REQ-0x0c1a [ 77.890607] Bluetooth: hci6: unexpected cc 0x1001 length: 249 > 9 [ 77.901039] Bluetooth: hci6: unexpected cc 0x0c23 length: 249 > 4 [ 77.903830] Bluetooth: hci6: unexpected cc 0x0c25 length: 249 > 3 [ 77.905293] Bluetooth: hci6: unexpected cc 0x0c38 length: 249 > 2 [ 77.912100] Bluetooth: hci6: HCI_REQ-0x0c1a [ 77.912802] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 77.921603] Bluetooth: hci5: unexpected cc 0x0c23 length: 249 > 4 [ 77.928008] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 77.934174] Bluetooth: hci5: unexpected cc 0x0c25 length: 249 > 3 [ 77.936220] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 77.937408] Bluetooth: hci5: unexpected cc 0x0c38 length: 249 > 2 [ 77.943171] Bluetooth: hci5: HCI_REQ-0x0c1a [ 77.960768] Bluetooth: hci2: HCI_REQ-0x0c1a [ 79.765580] Bluetooth: hci1: command 0x0409 tx timeout [ 79.767584] Bluetooth: hci0: command 0x0409 tx timeout [ 79.829023] Bluetooth: hci4: command 0x0409 tx timeout [ 79.829907] Bluetooth: hci3: command 0x0409 tx timeout [ 79.892011] Bluetooth: hci7: command 0x0409 tx timeout [ 79.956989] Bluetooth: hci6: command 0x0409 tx timeout [ 80.021001] Bluetooth: hci5: command 0x0409 tx timeout [ 80.084107] Bluetooth: hci2: command 0x0409 tx timeout [ 81.812049] Bluetooth: hci0: command 0x041b tx timeout [ 81.813104] Bluetooth: hci1: command 0x041b tx timeout [ 81.877101] Bluetooth: hci3: command 0x041b tx timeout [ 81.877572] Bluetooth: hci4: command 0x041b tx timeout [ 81.986856] Bluetooth: hci7: command 0x041b tx timeout [ 82.005015] Bluetooth: hci6: command 0x041b tx timeout [ 82.069032] Bluetooth: hci5: command 0x041b tx timeout [ 82.132972] Bluetooth: hci2: command 0x041b tx timeout [ 83.860013] Bluetooth: hci1: command 0x040f tx timeout [ 83.861779] Bluetooth: hci0: command 0x040f tx timeout [ 83.945161] Bluetooth: hci4: command 0x040f tx timeout [ 83.945878] Bluetooth: hci3: command 0x040f tx timeout [ 83.987974] Bluetooth: hci7: command 0x040f tx timeout [ 84.051962] Bluetooth: hci6: command 0x040f tx timeout [ 84.116045] Bluetooth: hci5: command 0x040f tx timeout [ 84.181139] Bluetooth: hci2: command 0x040f tx timeout [ 85.909053] Bluetooth: hci0: command 0x0419 tx timeout [ 85.910019] Bluetooth: hci1: command 0x0419 tx timeout [ 85.972014] Bluetooth: hci3: command 0x0419 tx timeout [ 85.972450] Bluetooth: hci4: command 0x0419 tx timeout [ 86.036958] Bluetooth: hci7: command 0x0419 tx timeout [ 86.101011] Bluetooth: hci6: command 0x0419 tx timeout [ 86.164999] Bluetooth: hci5: command 0x0419 tx timeout [ 86.229021] Bluetooth: hci2: command 0x0419 tx timeout 17:46:28 executing program 3: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) mremap(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1002, 0x3, &(0x7f0000fff000/0x1000)=nil) mlock(&(0x7f0000ffd000/0x2000)=nil, 0x2000) getpid() r0 = fork() r1 = getpid() kcmp(r1, r0, 0x4, 0xffffffffffffffff, 0xffffffffffffffff) 17:46:28 executing program 3: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) mremap(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1002, 0x3, &(0x7f0000fff000/0x1000)=nil) mlock(&(0x7f0000ffd000/0x2000)=nil, 0x2000) getpid() r0 = fork() r1 = getpid() kcmp(r1, r0, 0x4, 0xffffffffffffffff, 0xffffffffffffffff) [ 135.478568] audit: type=1400 audit(1663091189.029:7): avc: denied { open } for pid=3851 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 135.480013] audit: type=1400 audit(1663091189.029:8): avc: denied { kernel } for pid=3851 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 135.491669] ------------[ cut here ]------------ [ 135.491693] [ 135.491697] ====================================================== [ 135.491701] WARNING: possible circular locking dependency detected [ 135.491705] 6.0.0-rc5-next-20220913 #1 Not tainted [ 135.491712] ------------------------------------------------------ [ 135.491715] syz-executor.5/3852 is trying to acquire lock: [ 135.491722] ffffffff853fa878 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 [ 135.491762] [ 135.491762] but task is already holding lock: [ 135.491765] ffff88804221a420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 135.491793] [ 135.491793] which lock already depends on the new lock. [ 135.491793] [ 135.491796] [ 135.491796] the existing dependency chain (in reverse order) is: [ 135.491800] [ 135.491800] -> #3 (&ctx->lock){....}-{2:2}: [ 135.491814] _raw_spin_lock+0x2a/0x40 [ 135.491832] __perf_event_task_sched_out+0x53b/0x18d0 [ 135.491844] __schedule+0xedd/0x2470 [ 135.491854] schedule+0xda/0x1b0 [ 135.491864] exit_to_user_mode_prepare+0x114/0x1a0 [ 135.491885] syscall_exit_to_user_mode+0x19/0x40 [ 135.491903] do_syscall_64+0x48/0x90 [ 135.491920] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 135.491938] [ 135.491938] -> #2 (&rq->__lock){-.-.}-{2:2}: [ 135.491952] _raw_spin_lock_nested+0x30/0x40 [ 135.491969] raw_spin_rq_lock_nested+0x1e/0x30 [ 135.491985] task_fork_fair+0x63/0x4d0 [ 135.492003] sched_cgroup_fork+0x3d0/0x540 [ 135.492017] copy_process+0x3f9e/0x6df0 [ 135.492028] kernel_clone+0xe7/0x890 [ 135.492037] user_mode_thread+0xad/0xf0 [ 135.492047] rest_init+0x24/0x250 [ 135.492064] arch_call_rest_init+0xf/0x14 [ 135.492084] start_kernel+0x4c1/0x4e6 [ 135.492102] secondary_startup_64_no_verify+0xe0/0xeb [ 135.492117] [ 135.492117] -> #1 (&p->pi_lock){-.-.}-{2:2}: [ 135.492130] _raw_spin_lock_irqsave+0x39/0x60 [ 135.492145] try_to_wake_up+0xab/0x1920 [ 135.492159] up+0x75/0xb0 [ 135.492170] __up_console_sem+0x6e/0x80 [ 135.492187] console_unlock+0x46a/0x590 [ 135.492203] vt_ioctl+0x2822/0x2ca0 [ 135.492216] tty_ioctl+0x7c4/0x1700 [ 135.492227] __x64_sys_ioctl+0x19a/0x210 [ 135.492243] do_syscall_64+0x3b/0x90 [ 135.492256] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 135.492273] [ 135.492273] -> #0 ((console_sem).lock){....}-{2:2}: [ 135.492287] __lock_acquire+0x2a02/0x5e70 [ 135.492303] lock_acquire+0x1a2/0x530 [ 135.492319] _raw_spin_lock_irqsave+0x39/0x60 [ 135.492334] down_trylock+0xe/0x70 [ 135.492347] __down_trylock_console_sem+0x3b/0xd0 [ 135.492363] vprintk_emit+0x16b/0x560 [ 135.492380] vprintk+0x84/0xa0 [ 135.492396] _printk+0xba/0xf1 [ 135.492414] report_bug.cold+0x72/0xab [ 135.492427] handle_bug+0x3c/0x70 [ 135.492440] exc_invalid_op+0x14/0x50 [ 135.492456] asm_exc_invalid_op+0x16/0x20 [ 135.492472] group_sched_out.part.0+0x2c7/0x460 [ 135.492483] ctx_sched_out+0x8f1/0xc10 [ 135.492492] __perf_event_task_sched_out+0x6d0/0x18d0 [ 135.492505] __schedule+0xedd/0x2470 [ 135.492514] schedule+0xda/0x1b0 [ 135.492523] exit_to_user_mode_prepare+0x114/0x1a0 [ 135.492543] syscall_exit_to_user_mode+0x19/0x40 [ 135.492560] do_syscall_64+0x48/0x90 [ 135.492573] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 135.492590] [ 135.492590] other info that might help us debug this: [ 135.492590] [ 135.492593] Chain exists of: [ 135.492593] (console_sem).lock --> &rq->__lock --> &ctx->lock [ 135.492593] [ 135.492608] Possible unsafe locking scenario: [ 135.492608] [ 135.492610] CPU0 CPU1 [ 135.492613] ---- ---- [ 135.492615] lock(&ctx->lock); [ 135.492621] lock(&rq->__lock); [ 135.492627] lock(&ctx->lock); [ 135.492633] lock((console_sem).lock); [ 135.492639] [ 135.492639] *** DEADLOCK *** [ 135.492639] [ 135.492641] 2 locks held by syz-executor.5/3852: [ 135.492648] #0: ffff88806ce37cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 [ 135.492673] #1: ffff88804221a420 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 [ 135.492701] [ 135.492701] stack backtrace: [ 135.492703] CPU: 0 PID: 3852 Comm: syz-executor.5 Not tainted 6.0.0-rc5-next-20220913 #1 [ 135.492716] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 135.492725] Call Trace: [ 135.492728] [ 135.492733] dump_stack_lvl+0x8b/0xb3 [ 135.492747] check_noncircular+0x263/0x2e0 [ 135.492764] ? format_decode+0x26c/0xb50 [ 135.492780] ? print_circular_bug+0x450/0x450 [ 135.492798] ? enable_ptr_key_workfn+0x20/0x20 [ 135.492812] ? perf_swevent_event+0x491/0x550 [ 135.492831] ? format_decode+0x26c/0xb50 [ 135.492847] ? alloc_chain_hlocks+0x1ec/0x5a0 [ 135.492865] __lock_acquire+0x2a02/0x5e70 [ 135.492887] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 135.492910] lock_acquire+0x1a2/0x530 [ 135.492927] ? down_trylock+0xe/0x70 [ 135.492942] ? rcu_read_unlock+0x40/0x40 [ 135.492963] ? vprintk+0x84/0xa0 [ 135.492981] _raw_spin_lock_irqsave+0x39/0x60 [ 135.492997] ? down_trylock+0xe/0x70 [ 135.493011] down_trylock+0xe/0x70 [ 135.493024] ? vprintk+0x84/0xa0 [ 135.493041] __down_trylock_console_sem+0x3b/0xd0 [ 135.493059] vprintk_emit+0x16b/0x560 [ 135.493078] vprintk+0x84/0xa0 [ 135.493096] _printk+0xba/0xf1 [ 135.493114] ? record_print_text.cold+0x16/0x16 [ 135.493136] ? report_bug.cold+0x66/0xab [ 135.493151] ? group_sched_out.part.0+0x2c7/0x460 [ 135.493162] report_bug.cold+0x72/0xab [ 135.493177] handle_bug+0x3c/0x70 [ 135.493191] exc_invalid_op+0x14/0x50 [ 135.493205] asm_exc_invalid_op+0x16/0x20 [ 135.493223] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 135.493236] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 135.493249] RSP: 0018:ffff888018bd7c48 EFLAGS: 00010006 [ 135.493258] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 135.493265] RDX: ffff888042a99ac0 RSI: ffffffff81566027 RDI: 0000000000000005 [ 135.493273] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 135.493281] R10: 0000000000000000 R11: ffffffff865aa01b R12: ffff88804221a400 [ 135.493289] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 135.493300] ? group_sched_out.part.0+0x2c7/0x460 [ 135.493313] ? group_sched_out.part.0+0x2c7/0x460 [ 135.493326] ctx_sched_out+0x8f1/0xc10 [ 135.493338] __perf_event_task_sched_out+0x6d0/0x18d0 [ 135.493353] ? lock_is_held_type+0xd7/0x130 [ 135.493372] ? __perf_cgroup_move+0x160/0x160 [ 135.493384] ? set_next_entity+0x304/0x550 [ 135.493402] ? update_curr+0x267/0x740 [ 135.493421] ? lock_is_held_type+0xd7/0x130 [ 135.493439] __schedule+0xedd/0x2470 [ 135.493452] ? io_schedule_timeout+0x150/0x150 [ 135.493465] ? trace_rcu_dyntick+0x1a7/0x250 [ 135.493487] schedule+0xda/0x1b0 [ 135.493498] exit_to_user_mode_prepare+0x114/0x1a0 [ 135.493518] syscall_exit_to_user_mode+0x19/0x40 [ 135.493537] do_syscall_64+0x48/0x90 [ 135.493551] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 135.493568] RIP: 0033:0x7feeb30e1b19 [ 135.493577] 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 [ 135.493588] RSP: 002b:00007feeb0657218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 135.493599] RAX: 0000000000000001 RBX: 00007feeb31f4f68 RCX: 00007feeb30e1b19 [ 135.493607] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007feeb31f4f6c [ 135.493614] RBP: 00007feeb31f4f60 R08: 000000000000000e R09: 0000000000000000 [ 135.493621] R10: 0000000000000003 R11: 0000000000000246 R12: 00007feeb31f4f6c [ 135.493629] R13: 00007ffde497e3ff R14: 00007feeb0657300 R15: 0000000000022000 [ 135.493642] [ 135.548491] WARNING: CPU: 0 PID: 3852 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 [ 135.549167] Modules linked in: [ 135.549404] CPU: 0 PID: 3852 Comm: syz-executor.5 Not tainted 6.0.0-rc5-next-20220913 #1 [ 135.549993] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 135.550832] RIP: 0010:group_sched_out.part.0+0x2c7/0x460 [ 135.551232] Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 [ 135.552538] RSP: 0018:ffff888018bd7c48 EFLAGS: 00010006 [ 135.552924] RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 [ 135.553449] RDX: ffff888042a99ac0 RSI: ffffffff81566027 RDI: 0000000000000005 [ 135.553964] RBP: ffff8880086605c8 R08: 0000000000000005 R09: 0000000000000001 [ 135.554500] R10: 0000000000000000 R11: ffffffff865aa01b R12: ffff88804221a400 [ 135.555025] R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 [ 135.555548] FS: 00007feeb0657700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 135.556138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 135.556572] CR2: 00007f187c3b8620 CR3: 00000000417dc000 CR4: 0000000000350ef0 [ 135.557091] Call Trace: [ 135.557286] [ 135.557453] ctx_sched_out+0x8f1/0xc10 [ 135.557740] __perf_event_task_sched_out+0x6d0/0x18d0 [ 135.558140] ? lock_is_held_type+0xd7/0x130 [ 135.558486] ? __perf_cgroup_move+0x160/0x160 [ 135.558818] ? set_next_entity+0x304/0x550 [ 135.559138] ? update_curr+0x267/0x740 [ 135.559438] ? lock_is_held_type+0xd7/0x130 [ 135.559778] __schedule+0xedd/0x2470 [ 135.560059] ? io_schedule_timeout+0x150/0x150 [ 135.560404] ? trace_rcu_dyntick+0x1a7/0x250 [ 135.560754] schedule+0xda/0x1b0 [ 135.561016] exit_to_user_mode_prepare+0x114/0x1a0 [ 135.561409] syscall_exit_to_user_mode+0x19/0x40 [ 135.561771] do_syscall_64+0x48/0x90 [ 135.562052] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 135.562437] RIP: 0033:0x7feeb30e1b19 [ 135.562710] 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 [ 135.564025] RSP: 002b:00007feeb0657218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 135.564594] RAX: 0000000000000001 RBX: 00007feeb31f4f68 RCX: 00007feeb30e1b19 [ 135.565100] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007feeb31f4f6c [ 135.565599] RBP: 00007feeb31f4f60 R08: 000000000000000e R09: 0000000000000000 [ 135.566092] R10: 0000000000000003 R11: 0000000000000246 R12: 00007feeb31f4f6c [ 135.566610] R13: 00007ffde497e3ff R14: 00007feeb0657300 R15: 0000000000022000 [ 135.567132] [ 135.567303] irq event stamp: 676 [ 135.567546] hardirqs last enabled at (675): [] exit_to_user_mode_prepare+0x109/0x1a0 [ 135.568217] hardirqs last disabled at (676): [] __schedule+0x1225/0x2470 [ 135.568809] softirqs last enabled at (504): [] __irq_exit_rcu+0x11b/0x180 [ 135.569420] softirqs last disabled at (477): [] __irq_exit_rcu+0x11b/0x180 [ 135.570038] ---[ end trace 0000000000000000 ]--- 17:46:29 executing program 3: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) mremap(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1002, 0x3, &(0x7f0000fff000/0x1000)=nil) mlock(&(0x7f0000ffd000/0x2000)=nil, 0x2000) getpid() r0 = fork() r1 = getpid() kcmp(r1, r0, 0x4, 0xffffffffffffffff, 0xffffffffffffffff) [ 135.615765] ======================================================= [ 135.615765] WARNING: The mand mount option has been deprecated and [ 135.615765] and is ignored by this kernel. Remove the mand [ 135.615765] option from the mount to silence this warning. [ 135.615765] ======================================================= 17:46:29 executing program 1: r0 = fsopen(&(0x7f0000000000)='ramfs\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='mand\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) 17:46:29 executing program 3: r0 = fsopen(&(0x7f0000000000)='ramfs\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='mand\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) 17:46:29 executing program 1: r0 = fsopen(&(0x7f0000000000)='ramfs\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='mand\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) 17:46:29 executing program 2: mlock2(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0) mremap(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x1002, 0x3, &(0x7f0000fff000/0x1000)=nil) mlock(&(0x7f0000ffd000/0x2000)=nil, 0x2000) getpid() r0 = fork() r1 = getpid() kcmp(r1, r0, 0x4, 0xffffffffffffffff, 0xffffffffffffffff) [ 135.760666] loop5: detected capacity change from 0 to 264192 [ 135.780368] FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) 17:46:29 executing program 3: r0 = fsopen(&(0x7f0000000000)='ramfs\x00', 0x0) fsconfig$FSCONFIG_SET_FLAG(r0, 0x0, &(0x7f00000000c0)='mand\x00', 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) fsmount(r0, 0x0, 0x0) [ 135.800580] audit: type=1400 audit(1663091189.351:9): avc: denied { write } for pid=3851 comm="syz-executor.5" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 [ 136.660626] syz-executor.4 (301) used greatest stack depth: 24664 bytes left [ 140.948035] Bluetooth: hci1: Opcode 0x c03 failed: -110 [ 141.011943] Bluetooth: hci2: Opcode 0x c03 failed: -110 [ 141.075943] Bluetooth: hci3: Opcode 0x c03 failed: -110 [ 141.139962] Bluetooth: hci5: Opcode 0x c03 failed: -110 [ 145.172033] Bluetooth: hci1: Opcode 0x c03 failed: -110 [ 145.300716] Bluetooth: hci2: Opcode 0x c03 failed: -110 [ 145.364114] Bluetooth: hci3: Opcode 0x c03 failed: -110 [ 145.427964] Bluetooth: hci5: Opcode 0x c03 failed: -110 VM DIAGNOSIS: 17:46:29 Registers: info registers vcpu 0 RAX=0000000000000074 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff822b25c1 RDI=ffffffff8763fae0 RBP=ffffffff8763faa0 RSP=ffff888018bd7698 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000074 R11=0000000000000001 R12=0000000000000074 R13=ffffffff8763faa0 R14=0000000000000010 R15=ffffffff822b25b0 RIP=ffffffff822b2619 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007feeb0657700 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=00007f187c3b8620 CR3=00000000417dc000 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 00007feeb31c87c0 00007feeb31c87c8 YMM02=0000000000000000 0000000000000000 00007feeb31c87e0 00007feeb31c87c0 YMM03=0000000000000000 0000000000000000 00007feeb31c87c8 00007feeb31c87c0 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=ffffffff854527a0 RCX=0000000000000000 RDX=000000000002b400 RSI=0000000000000008 RDI=ffffffff85452970 RBP=ffff888042a3ff58 RSP=ffff888042a3fef8 R8 =0000000000000000 R9 =ffffffff85b02317 R10=fffffbfff0b60462 R11=0000000000000001 R12=ffffffff84241efd R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff8130d81c RFL=00000082 [--S----] 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 00007fdf6639d540 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=00007ffeb9d83fe8 CR3=000000001f05c000 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 2525252525252525 2525252525252525 YMM01=0000000000000000 0000000000000000 00ff000000000000 0000000000ff0000 YMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM03=0000000000000000 0000000000000000 756e20796d6d7564 20736e6f6974706f YMM04=0000000000000000 0000000000000000 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f YMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 YMM08=0000000000000000 0000000000000000 73253d656d616e6c 6165722073253d73 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