Commit: patch 9.2.0242: memory leak in check_for_cryptkey()

[Christian Brabandt]

patch 9.2.0242: memory leak in check_for_cryptkey()

Commit: https://github.com/vim/vim/commit/a4c0119786daba999c7f74be5ef2f3363e137af5
Author: Huihui Huang <625...@qq.com>
Date: Wed Mar 25 19:11:13 2026 +0000

patch 9.2.0242: memory leak in check_for_cryptkey()

Problem: memory leak in check_for_cryptkey()
Solution: Free cryptkey if it had been allocated
(Huihui Huang)

closes: #19821

Signed-off-by: Huihui Huang <625...@qq.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/fileio.c b/src/fileio.c
index 8917a7e29..e057b78ad 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3074,8 +3074,12 @@ check_for_cryptkey(

header_len = crypt_get_header_len(method);
if (*sizep < header_len)
+ {
// invalid header, buffer can't be encrypted
+ if (cryptkey != curbuf->b_p_key)
+ vim_free(cryptkey);
return NULL;
+ }

curbuf->b_cryptstate = crypt_create_from_header(
method, cryptkey, ptr);
diff --git a/src/version.c b/src/version.c
index 9bf8c8417..003ddcacb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -734,6 +734,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 242,
/**/
241,
/**/