diff options
Diffstat (limited to 'src/debug')
| -rw-r--r-- | src/debug/elf/file.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/debug/elf/file.go b/src/debug/elf/file.go index e93200a11d..5f339596a7 100644 --- a/src/debug/elf/file.go +++ b/src/debug/elf/file.go @@ -325,6 +325,13 @@ func NewFile(r io.ReaderAt) (*File, error) { shstrndx = int(hdr.Shstrndx) } + if shoff < 0 { + return nil, &FormatError{0, "invalid shoff", shoff} + } + if phoff < 0 { + return nil, &FormatError{0, "invalid phoff", phoff} + } + if shoff == 0 && shnum != 0 { return nil, &FormatError{0, "invalid ELF shnum for shoff=0", shnum} } @@ -419,6 +426,12 @@ func NewFile(r io.ReaderAt) (*File, error) { Entsize: sh.Entsize, } } + if int64(s.Offset) < 0 { + return nil, &FormatError{off, "invalid section offset", int64(s.Offset)} + } + if int64(s.FileSize) < 0 { + return nil, &FormatError{off, "invalid section size", int64(s.FileSize)} + } s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.FileSize)) if s.Flags&SHF_COMPRESSED == 0 { |