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vim-patch:8.0.0828: Coverity: may dereference NULL pointer

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Problem:    Coverity: may dereference NULL pointer.
Solution:   Bail out if calloc_state() returns NULL.
983b3a5bc4
This commit is contained in:
Jan Edmund Lazo 2018-08-10 09:33:48 -04:00
parent 22311457ab
commit dd6c1a0a8f
1 changed files with 6 additions and 0 deletions
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6
src/nvim/regexp_nfa.c
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@ -3224,7 +3224,13 @@ static nfa_state_T *post2nfa(int *postfix, int *end, int nfa_calc_size)
if (pattern) { if (pattern) {
/* NFA_ZEND -> NFA_END_PATTERN -> NFA_SKIP -> what follows. */ /* NFA_ZEND -> NFA_END_PATTERN -> NFA_SKIP -> what follows. */
skip = alloc_state(NFA_SKIP, NULL, NULL); skip = alloc_state(NFA_SKIP, NULL, NULL);
if (skip == NULL) {
goto theend;
}
zend = alloc_state(NFA_ZEND, s1, NULL); zend = alloc_state(NFA_ZEND, s1, NULL);
if (zend == NULL) {
goto theend;
}
s1->out= skip; s1->out= skip;
patch(e.out, zend); patch(e.out, zend);
PUSH(frag(s, list1(&skip->out))); PUSH(frag(s, list1(&skip->out)));