Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
struct grep_expr *x;
p = *list;
+ if (!p)
+ return NULL;
switch (p->token) {
case GREP_PATTERN: /* atom */
case GREP_PATTERN_HEAD:
case GREP_OPEN_PAREN:
*list = p->next;
x = compile_pattern_or(list);
- if (!x)
- return NULL;
if (!*list || (*list)->token != GREP_CLOSE_PAREN)
die("unmatched parenthesis");
*list = (*list)->next;
struct grep_expr *x;
p = *list;
+ if (!p)
+ return NULL;
switch (p->token) {
case GREP_NOT:
if (!p->next)
{
int h = 0;
+ if (!x)
+ die("Not a valid grep expression");
switch (x->node) {
case GREP_NODE_ATOM:
h = match_one_pattern(o, x->u.atom, bol, eol, ctx);
git commit -m initial
'
+test_expect_success 'grep should not segfault with a bad input' '
+ test_must_fail git grep "("
+'
+
for H in HEAD ''
do
case "$H" in