diff options
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_file.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_file.go b/pkg/sentry/syscalls/linux/sys_file.go index 1d61ac9f0..9b8374ef6 100644 --- a/pkg/sentry/syscalls/linux/sys_file.go +++ b/pkg/sentry/syscalls/linux/sys_file.go @@ -1915,6 +1915,10 @@ func Sendfile(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysc hasOffset := offsetAddr != 0 // If we have a provided offset. if hasOffset { + // Verify that when offset address is not null, infile must be seekable + if !inFile.Flags().Pread { + return 0, nil, syserror.ESPIPE + } // Copy in the offset. if _, err := t.CopyIn(offsetAddr, &offset); err != nil { return 0, nil, err |