Commit: patch 9.1.2141: Truncation when serializing libsodium encryption parameters

[Christian Brabandt]

patch 9.1.2141: Truncation when serializing libsodium encryption parameters

Commit: https://github.com/vim/vim/commit/60e93b5de7b2ebdf39a84f6d19873ac4d4686a57
Author: Yasuhiro Matsumoto <matt...@gmail.com>
Date: Sun Feb 8 21:04:51 2026 +0000

patch 9.1.2141: Truncation when serializing libsodium encryption parameters

Problem: Truncation when serializing libsodium encryption parameters.
Solution: Correctly cast to long long type (Yasuhiro Matsumoto).

fixes: #19248
closes: #19357

Signed-off-by: Yasuhiro Matsumoto <matt...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/version9.txt b/runtime/doc/version9.txt
index e2bc66be0..c5ed3da00 100644
--- a/runtime/doc/version9.txt
+++ b/runtime/doc/version9.txt
@@ -1,4 +1,4 @@
-*version9.txt* For Vim version 9.1. Last change: 2026 Feb 07
+*version9.txt* For Vim version 9.1. Last change: 2026 Feb 08


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -52528,4 +52528,8 @@ Problem: tests: Test_wayland_protocol_error_overflow() fails
(after v9.1.2139)
Solution: try/catch the expected error

+Patch 9.1.2141
+Problem: Truncation when serializing libsodium encryption parameters.
+Solution: Correctly cast to long long type (Yasuhiro Matsumoto).
+
vim:tw=78:ts=8:noet:ft=help:norl:fdm=manual:nofoldenable
diff --git a/src/crypt.c b/src/crypt.c
index da1022644..794594f91 100644
--- a/src/crypt.c
+++ b/src/crypt.c
@@ -1356,7 +1356,7 @@ crypt_long_long_to_char(long long n, char_u *s)
for (i = 0; i < 8; i++)
{
s[i] = (char_u)(n & 0xff);
- n = (unsigned)n >> 8;
+ n = (unsigned long long)n >> 8;
}
}

@@ -1367,7 +1367,7 @@ crypt_int_to_char(int n, char_u *s)
for (i = 0; i < 4; i++)
{
s[i] = (char_u)(n & 0xff);
- n = (unsigned)n >> 8;
+ n = (unsigned long long)n >> 8;
}
}

diff --git a/src/version.c b/src/version.c
index e6b867cf6..5f437f42d 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 */
+/**/
+ 2141,
/**/
2140,
/**/