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vim-patch:9.0.1511: crash when using wrong arg types to assert_match() (#23507)

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Problem:    Crash when using wrong arg types to assert_match().
Solution:   Check for NULL pointer. (closes vim/vim#12349)

12e7a1fe75
This commit is contained in:
zeertzjq 2023-05-06 20:00:17 +08:00 committed by GitHub
parent a67b76943a
commit ca5a810c4a
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 5 deletions
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10
src/nvim/testing.c
View File

@ -287,11 +287,10 @@ static int assert_match_common(typval_T *argvars, assert_type_T atype)
{
char buf1[NUMBUFLEN];
char buf2[NUMBUFLEN];
const int called_emsg_before = called_emsg;
const char *const pat = tv_get_string_buf_chk(&argvars[0], buf1);
const char *const text = tv_get_string_buf_chk(&argvars[1], buf2);
if (called_emsg == called_emsg_before
if (pat != NULL && text != NULL
&& pattern_match(pat, text, false) != (atype == ASSERT_MATCH)) {
garray_T ga;
prepare_assert_error(&ga);
@ -393,12 +392,10 @@ static int assert_equalfile(typval_T *argvars)
{
char buf1[NUMBUFLEN];
char buf2[NUMBUFLEN];
const int called_emsg_before = called_emsg;
const char *const fname1 = tv_get_string_buf_chk(&argvars[0], buf1);
const char *const fname2 = tv_get_string_buf_chk(&argvars[1], buf2);
garray_T ga;
if (called_emsg > called_emsg_before) {
if (fname1 == NULL || fname2 == NULL) {
return 0;
}
@ -451,7 +448,9 @@ static int assert_equalfile(typval_T *argvars)
fclose(fd2);
}
}
if (IObuff[0] != NUL) {
garray_T ga;
prepare_assert_error(&ga);
if (argvars[2].v_type != VAR_UNKNOWN) {
char *const tofree = encode_tv2echo(&argvars[2], NULL);
@ -475,6 +474,7 @@ static int assert_equalfile(typval_T *argvars)
ga_clear(&ga);
return 1;
}
return 0;
}

17
test/old/testdir/test_assert.vim
View File

@ -324,6 +324,23 @@ func Test_assert_fail_fails()
call remove(v:errors, 0)
endfunc
func Test_assert_wrong_arg_emsg_off()
CheckFeature folding
new
call setline(1, ['foo', 'bar'])
1,2fold
" This used to crash Vim
let &l:foldtext = 'assert_match({}, {})'
redraw!
let &l:foldtext = 'assert_equalfile({}, {})'
redraw!
bwipe!
endfunc
func Test_assert_fails_in_try_block()
try
call assert_equal(0, assert_fails('throw "error"'))