| From 3bdeed02505c9bbacb3b64a97ddcb1de967153b7 Mon Sep 17 00:00:00 2001 |
| From: Willem Toorop <willem@nlnetlabs.nl> |
| Date: Thu, 27 Apr 2017 00:25:20 +0200 |
| Subject: [PATCH] bugfix #1257: Free after reallocing to 0 size |
| |
| Thanks Stephan Zeisberg |
| --- |
| Changelog | 2 ++ |
| str2host.c | 6 ++++-- |
| 2 files changed, 6 insertions(+), 2 deletions(-) |
| |
| diff --git a/str2host.c b/str2host.c |
| index b274b17a2bf9..f2a317beaf18 100644 |
| --- a/str2host.c |
| +++ b/str2host.c |
| @@ -1525,8 +1525,10 @@ ldns_str2rdf_long_str(ldns_rdf **rd, const char *str) |
| if (! str) { |
| return LDNS_STATUS_SYNTAX_BAD_ESCAPE; |
| } |
| - length = (size_t)(dp - data); |
| - |
| + if (!(length = (size_t)(dp - data))) { |
| + LDNS_FREE(data); |
| + return LDNS_STATUS_SYNTAX_EMPTY; |
| + } |
| /* Lose the overmeasure */ |
| data = LDNS_XREALLOC(dp = data, uint8_t, length); |
| if (! data) { |
| -- |
| 2.19.1 |
