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Fix handling of corrupt STABS enum type strings. 

PR binutils/21157
	* stabs.c (parse_stab_enum_type): Check for corrupt NAME:VALUE
	pairs.
	(parse_number): Exit early if passed an empty string.
This commit is contained in:
Nick Clifton 2017-02-14 14:07:29 +00:00
parent b32e566ba6
commit a2dea0b20b
2 changed files with 20 additions and 1 deletions
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7
binutils/ChangeLog
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@ -1,3 +1,10 @@
2017-02-14 Nick Clifton <nickc@redhat.com>
PR binutils/21157
* stabs.c (parse_stab_enum_type): Check for corrupt NAME:VALUE
pairs.
(parse_number): Exit early if passed an empty string.
2017-02-14 Nick Clifton <nickc@redhat.com>
PR binutils/21155

14
binutils/stabs.c
View File

@ -232,6 +232,10 @@ parse_number (const char **pp, bfd_boolean *poverflow)
orig = *pp;
/* Stop early if we are passed an empty string. */
if (*orig == 0)
return (bfd_vma) 0;
errno = 0;
ul = strtoul (*pp, (char **) pp, 0);
if (ul + 1 != 0 || errno == 0)
@ -1975,9 +1979,17 @@ parse_stab_enum_type (void *dhandle, const char **pp)
bfd_signed_vma val;
p = *pp;
while (*p != ':')
while (*p != ':' && *p != 0)
++p;
if (*p == 0)
{
bad_stab (orig);
free (names);
free (values);
return DEBUG_TYPE_NULL;
}
name = savestring (*pp, p - *pp);
*pp = p + 1;