Author: Eric Wong <normalperson@yhbt.net>
html.c: avoid out-of-bounds access for url_escape_table This fixes a segfault for me with with -O2 optimization on x86 with gcc (Debian 4.4.5-8) 4.4.5 I can reliably reproduce it with the following parameters when pointed to the git.git repository: PATH_INFO='/git-core.git/diff/' QUERY_STRING='id=2b93bfac0f5bcabbf60f174f4e7bfa9e318e64d5&id2=d6da71a9d16b8cf27f9d8f90692d3625c849cbc8' Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Lars Hjemli <hjemli@gmail.com>
html.c | 4 ++--
diff --git a/html.c b/html.c index 24a03a52b4042130a4da207ddafcfc370525658d..5b07aa0d9ee041b060e9bf99725b1bd3c47ce88b 100644 --- a/html.c +++ b/html.c @@ -162,7 +162,7 @@ void html_url_path(const char *txt) { const char *t = txt; while(t && *t){ - int c = *t; + unsigned char c = *t; const char *e = url_escape_table[c]; if (e && c!='+' && c!='&') { html_raw(txt, t - txt); @@ -179,7 +179,7 @@ void html_url_arg(const char *txt) { const char *t = txt; while(t && *t){ - int c = *t; + unsigned char c = *t; const char *e = url_escape_table[c]; if (c == ' ') e = "+";