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patch 9.1.1632: memory leak in fuzzy.c

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Problem:  memory leak in fuzzy.c
Solution: Free fuzmatch, add a few minor refactors
          (glepnir)

fixes neovim CID 584055: fuzmatch leak when count becomes 0
Fix partial allocation failure cleanup in buffer expansion

closes: #17996

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
glepnir 2025-08-14 21:15:44 +02:00 committed by Christian Brabandt
parent bb07b1ac14
commit 03d6e06edd
No known key found for this signature in database
GPG Key ID: F3F92DA383FDDE09
3 changed files with 11 additions and 5 deletions
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4
src/buffer.c
View File

@ -2971,7 +2971,11 @@ ExpandBufnames(
else
p = vim_strsave(p);
if (p == NULL)
{
if (fuzzy && round == 2)
fuzmatch_str_free(fuzmatch, count);
return FAIL;
}
if (!fuzzy)
{

10
src/fuzzy.c
View File

@ -868,11 +868,10 @@ search_for_fuzzy_match(
void
fuzmatch_str_free(fuzmatch_str_T *fuzmatch, int count)
{
int i;
if (fuzmatch == NULL)
return;
for (i = 0; i < count; ++i)
for (int i = 0; i < count; ++i)
vim_free(fuzmatch[i].str);
vim_free(fuzmatch);
}
@ -892,7 +891,7 @@ fuzzymatches_to_strmatches(
int i;
if (count <= 0)
return OK;
goto theend;
*matches = ALLOC_MULT(char_u *, count);
if (*matches == NULL)
@ -909,8 +908,9 @@ fuzzymatches_to_strmatches(
for (i = 0; i < count; i++)
(*matches)[i] = fuzmatch[i].str;
vim_free(fuzmatch);
theend:
vim_free(fuzmatch);
return OK;
}

2
src/version.c
View File

@ -719,6 +719,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1632,
/**/
1631,
/**/