wolfssl: patch CVE-2026-5778

Backport commit from the PR[1] mentioned in the nvd[2]

[1]https://github.com/wolfSSL/wolfssl/pull/10125
[2]https://nvd.nist.gov/vuln/detail/CVE-2026-5778

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Ankur Tyagi
2026-04-30 23:46:47 +12:00
committed by Anuj Mittal
parent 0722748606
commit f52f32952c
2 changed files with 39 additions and 0 deletions
@@ -0,0 +1,38 @@
From 0eee2c2d172a28dc9159211d0d22323c980a48f4 Mon Sep 17 00:00:00 2001
From: Kareem <kareem@wolfssl.com>
Date: Thu, 2 Apr 2026 16:41:55 -0700
Subject: [PATCH] Add sz check to ChachaAEADDecrypt to prevent potential
underflow.
Thanks to Zou Dikai for the report.
(cherry picked from commit 5b6b138964058ab8d30474bc9fdfb5ffcb3a4726)
CVE: CVE-2026-5778
Upstream-Status: Backport [https://github.com/wolfSSL/wolfssl/commit/5b6b138964058ab8d30474bc9fdfb5ffcb3a4726]
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
src/internal.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/internal.c b/src/internal.c
index 6af03cbf0..40d1dd7cc 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -19310,10 +19310,15 @@ int ChachaAEADDecrypt(WOLFSSL* ssl, byte* plain, const byte* input,
byte tag[POLY1305_AUTH_SZ];
byte poly[CHACHA20_256_KEY_SIZE]; /* generated key for mac */
int ret = 0;
- int msgLen = (sz - ssl->specs.aead_mac_size);
+ int msgLen = 0;
Keys* keys = &ssl->keys;
byte* seq = NULL;
+ if (sz < ssl->specs.aead_mac_size) {
+ return BAD_FUNC_ARG;
+ }
+ msgLen = (sz - ssl->specs.aead_mac_size);
+
#ifdef CHACHA_AEAD_TEST
int i;
printf("input before decrypt :\n");
@@ -46,6 +46,7 @@ SRC_URI = " \
file://CVE-2026-5447.patch \
file://CVE-2026-5772-1.patch \
file://CVE-2026-5772-2.patch \
file://CVE-2026-5778.patch \
"
SRCREV = "b077c81eb635392e694ccedbab8b644297ec0285"