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authorJohn Keeping <john@keeping.me.uk>2017-02-19 12:27:48 +0000
committerJason A. Donenfeld <Jason@zx2c4.com>2017-08-10 16:05:07 +0200
commit1b4ef6783a71962f8b5da3a23f2830f0f0f55ea0 (patch)
tree37faf12c4a5d56ec24a886bb82956d206a6f3a57
parentui-atom: properly escape delimiter in page link (diff)
downloadcgit-pink-1b4ef6783a71962f8b5da3a23f2830f0f0f55ea0.tar.gz
cgit-pink-1b4ef6783a71962f8b5da3a23f2830f0f0f55ea0.zip
ui-shared: don't print path crumbs without a repo
cgit_print_path_crumbs() can call repolink() which assumes that ctx.repo
is non-null.  Currently we don't have any commands that set want_vpath
without also setting want_repo so it shouldn't be possible to fail this
test, but the check in cgit.c is in the wrong order so it is possible to
specify a query string like "?p=log&path=foo/bar" to end up here without
a valid repository.

This was found by American fuzzy lop [0].

[0] http://lcamtuf.coredump.cx/afl/

Signed-off-by: John Keeping <john@keeping.me.uk>
Diffstat (limited to '')
-rw-r--r--ui-shared.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ui-shared.c b/ui-shared.c
index 2e4fcd9..e5c9a02 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1039,7 +1039,7 @@ void cgit_print_pageheader(void)
 		free(currenturl);
 	}
 	html("</td></tr></table>\n");
-	if (ctx.env.authenticated && ctx.qry.vpath) {
+	if (ctx.env.authenticated && ctx.repo && ctx.qry.vpath) {
 		html("<div class='path'>");
 		html("path: ");
 		cgit_print_path_crumbs(ctx.qry.vpath);