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authorTatsuya Kinoshita <tats@debian.org>2016-11-07 10:02:42 +0000
committerTatsuya Kinoshita <tats@debian.org>2016-11-07 10:02:42 +0000
commitaf592aa5f154f1b0366513ddc2f545032a7b8721 (patch)
tree179e13445a67efb0b67b00c6f50d7b5c21647235 /file.c
parentPrevent memory exhausted due to repeat appending "</table>" (diff)
downloadw3m-af592aa5f154f1b0366513ddc2f545032a7b8721.tar.gz
w3m-af592aa5f154f1b0366513ddc2f545032a7b8721.zip
Prevent crash after allocate string of negative size
Bug-Debian: https://github.com/tats/w3m/issues/33
Diffstat (limited to '')
-rw-r--r--file.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/file.c b/file.c
index 0ae90bd..29ad96b 100644
--- a/file.c
+++ b/file.c
@@ -5021,6 +5021,12 @@ HTMLtagproc1(struct parsed_tag *tag, struct html_feed_environ *h_env)
parsedtag_get_value(tag, ATTR_CELLSPACING, &x);
parsedtag_get_value(tag, ATTR_CELLPADDING, &y);
parsedtag_get_value(tag, ATTR_VSPACE, &z);
+ if (x < 0)
+ x = 0;
+ if (y < 0)
+ y = 0;
+ if (z < 0)
+ z = 0;
if (x > MAX_CELLSPACING)
x = MAX_CELLSPACING;
if (y > MAX_CELLPADDING)