I0706 22:34:31.865011 1 x:0] Watchdog starting loop, tasks: 5, discount: 0s I0706 22:34:32.193152 44174 x:0] *************************** I0706 22:34:32.193210 44174 x:0] Args: [/syzkaller/managers/kvm-direct-sandbox/current/image -root /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -platform=kvm -file-access=direct -network=sandbox exec -user=0:0 -cap CAP_CHOWN -cap CAP_DAC_OVERRIDE -cap CAP_DAC_READ_SEARCH -cap CAP_FOWNER -cap CAP_FSETID -cap CAP_KILL -cap CAP_SETGID -cap CAP_SETUID -cap CAP_SETPCAP -cap CAP_LINUX_IMMUTABLE -cap CAP_NET_BIND_SERVICE -cap CAP_NET_BROADCAST -cap CAP_NET_ADMIN -cap CAP_NET_RAW -cap CAP_IPC_LOCK -cap CAP_IPC_OWNER -cap CAP_SYS_MODULE -cap CAP_SYS_RAWIO -cap CAP_SYS_CHROOT -cap CAP_SYS_PTRACE -cap CAP_SYS_PACCT -cap CAP_SYS_ADMIN -cap CAP_SYS_BOOT -cap CAP_SYS_NICE -cap CAP_SYS_RESOURCE -cap CAP_SYS_TIME -cap CAP_SYS_TTY_CONFIG -cap CAP_MKNOD -cap CAP_LEASE -cap CAP_AUDIT_WRITE -cap CAP_AUDIT_CONTROL -cap CAP_SETFCAP -cap CAP_MAC_OVERRIDE -cap CAP_MAC_ADMIN -cap CAP_SYSLOG -cap CAP_WAKE_ALARM -cap CAP_BLOCK_SUSPEND -cap CAP_AUDIT_READ ci-gvisor-kvm-direct-sandbox-0 /syz-executor186406402] I0706 22:34:32.193262 44174 x:0] Git Revision: 34af9a61741f26be403231ec302b4e0795147906 I0706 22:34:32.193269 44174 x:0] PID: 44174 I0706 22:34:32.193275 44174 x:0] UID: 0, GID: 0 I0706 22:34:32.193278 44174 x:0] Configuration: I0706 22:34:32.193282 44174 x:0] RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root I0706 22:34:32.193294 44174 x:0] Platform: kvm I0706 22:34:32.193300 44174 x:0] FileAccess: direct, overlay: false I0706 22:34:32.193306 44174 x:0] Network: sandbox, logging: false I0706 22:34:32.193312 44174 x:0] Strace: false, max size: 1024, syscalls: [] I0706 22:34:32.193316 44174 x:0] *************************** I0706 22:34:32.194678 1 x:0] EXEC: [/syz-executor186406402] executing program W0706 22:34:34.796459 1 x:0] Invalid request partialResult true and err (type *errors.errorString) short write for sendfile operation on "/tmp/bus", *tmpfs.regularFileOperations: goroutine 158 [running]: gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x0, 0x7f4c2e4716c8, 0x0, 0x4) pkg/log/log.go:259 +0xc1 gvisor.googlesource.com/gvisor/pkg/log.Traceback(0xbdcc97, 0x50, 0xc4204eeae0, 0x6, 0x6) pkg/log/log.go:274 +0x2a gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.handleIOError(0xc42057f200, 0x20d83f01, 0xc6d120, 0xc4200f6040, 0xc6f020, 0xc69060, 0xbbd909, 0x8, 0xc420760120, 0xc4202cc000, ...) pkg/sentry/syscalls/linux/error.go:114 +0x2fd gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Sendfile(0xc42057f200, 0x3, 0x5, 0x20d83ff8, 0x8000fffffffe, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/sys_file.go:2025 +0x4ec gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc42057f200, 0x28, 0x3, 0x5, 0x20d83ff8, 0x8000fffffffe, 0x0, 0x0, 0xc420755ca8, 0xbb9f40, ...) pkg/sentry/kernel/task_syscall.go:162 +0x307 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc42057f200, 0x28, 0x3, 0x5, 0x20d83ff8, 0x8000fffffffe, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_syscall.go:278 +0x62 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc42057f200, 0x28, 0x3, 0x5, 0x20d83ff8, 0x8000fffffffe, 0x0, 0x0, 0xc4204d8800, 0xc420755e00) pkg/sentry/kernel/task_syscall.go:241 +0x91 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc42057f200, 0x2, 0xc420740000) pkg/sentry/kernel/task_syscall.go:216 +0x10c gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc42057f200, 0xc6d860, 0x0) pkg/sentry/kernel/task_run.go:217 +0xed8 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc42057f200, 0x7) pkg/sentry/kernel/task_run.go:95 +0x174 created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:251 +0x100 I0706 22:34:34.894248 44174 x:0] Exiting with status: 0