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patch 9.0.1511: crash when using wrong arg types to assert_match()

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Problem:    Crash when using wrong arg types to assert_match().
Solution:   Check for NULL pointer. (closes #12349)
This commit is contained in:
zeertzjq 2023-05-06 12:20:05 +01:00 committed by Bram Moolenaar
parent 70e8028a4d
commit 12e7a1fe75
3 changed files with 30 additions and 11 deletions
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17
src/testdir/test_assert.vim
View File

@ -335,6 +335,23 @@ 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"'))

22
src/testing.c
View File

@ -281,9 +281,6 @@ assert_match_common(typval_T *argvars, assert_type_T atype)
garray_T ga;
char_u buf1[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
int called_emsg_before = called_emsg;
char_u *pat;
char_u *text;
if (in_vim9script()
&& (check_for_string_arg(argvars, 0) == FAIL
@ -291,9 +288,9 @@ assert_match_common(typval_T *argvars, assert_type_T atype)
|| check_for_opt_string_arg(argvars, 2) == FAIL))
return 1;
pat = tv_get_string_buf_chk(&argvars[0], buf1);
text = tv_get_string_buf_chk(&argvars[1], buf2);
if (called_emsg == called_emsg_before
char_u *pat = tv_get_string_buf_chk(&argvars[0], buf1);
char_u *text = tv_get_string_buf_chk(&argvars[1], buf2);
if (pat != NULL && text != NULL
&& pattern_match(pat, text, FALSE) != (atype == ASSERT_MATCH))
{
prepare_assert_error(&ga);
@ -420,24 +417,23 @@ assert_equalfile(typval_T *argvars)
{
char_u buf1[NUMBUFLEN];
char_u buf2[NUMBUFLEN];
int called_emsg_before = called_emsg;
char_u *fname1 = tv_get_string_buf_chk(&argvars[0], buf1);
char_u *fname2 = tv_get_string_buf_chk(&argvars[1], buf2);
garray_T ga;
FILE *fd1;
FILE *fd2;
char line1[200];
char line2[200];
int lineidx = 0;
if (called_emsg > called_emsg_before)
if (fname1 == NULL || fname2 == NULL)
return 0;
IObuff[0] = NUL;
fd1 = mch_fopen((char *)fname1, READBIN);
if (fd1 == NULL)
{
vim_snprintf((char *)IObuff, IOSIZE, (char *)e_cant_read_file_str, fname1);
vim_snprintf((char *)IObuff, IOSIZE, (char *)e_cant_read_file_str,
fname1);
}
else
{
@ -445,7 +441,8 @@ assert_equalfile(typval_T *argvars)
if (fd2 == NULL)
{
fclose(fd1);
vim_snprintf((char *)IObuff, IOSIZE, (char *)e_cant_read_file_str, fname2);
vim_snprintf((char *)IObuff, IOSIZE, (char *)e_cant_read_file_str,
fname2);
}
else
{
@ -498,8 +495,10 @@ 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)
{
@ -528,6 +527,7 @@ assert_equalfile(typval_T *argvars)
ga_clear(&ga);
return 1;
}
return 0;
}

2
src/version.c
View File

@ -695,6 +695,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1511,
/**/
1510,
/**/