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| author | Michael Brown | 2013-07-15 18:06:41 +0200 |
|---|---|---|
| committer | Michael Brown | 2013-07-15 18:06:41 +0200 |
| commit | e52c24492af3465657fef882e15da9bc80e3512a (patch) | |
| tree | f9c473c658ffa95bd8becc19096543c4c935ea20 /src/image | |
| parent | [nfs] Add support for NFS protocol (diff) | |
| download | ipxe-e52c24492af3465657fef882e15da9bc80e3512a.tar.gz ipxe-e52c24492af3465657fef882e15da9bc80e3512a.tar.xz ipxe-e52c24492af3465657fef882e15da9bc80e3512a.zip | |
[script] Avoid trying to read final character of a zero-length string
Detected using Valgrind.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/image')
| -rw-r--r-- | src/image/script.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/image/script.c b/src/image/script.c index 8ef05854..ceccd901 100644 --- a/src/image/script.c +++ b/src/image/script.c @@ -92,11 +92,11 @@ static int process_script ( struct image *image, script_offset += ( frag_len + 1 ); /* Strip trailing CR, if present */ - if ( line[ len - 1 ] == '\r' ) + if ( len && ( line[ len - 1 ] == '\r' ) ) len--; /* Handle backslash continuations */ - if ( line[ len - 1 ] == '\\' ) { + if ( len && ( line[ len - 1 ] == '\\' ) ) { len--; rc = -EINVAL; continue; |