nss: patch CVE-2024-6609

Pick the same patch as Debian took for bullseye.

There is no direct backport to version prior 3.102 because
commit NSS_3_101_BETA2-12-g8d94c529b [1] rewrote this code.

Applied patch was proposed for old versions in [2] and already
applied in Debian bullseye.

I could not find suitable upstream status, inappropriate is the best
I could pick from offered possibilities.

[1] 8d94c529b3<
[2] https://groups.google.com/a/mozilla.org/g/dev-tech-crypto/c/t9JmsYkujWM/m/HjKuk-ngBAAJ

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-support/nss/nss/CVE-2024-6609.patch

@@ -0,0 +1,30 @@
+From 41550b24b92c4a5971da9842e5e9f2b452aceca8 Tue Oct 29 22:44:57 2024
+From: Peter Marko <peter.marko@siemens.com>
+Date: Tue, 29 Oct 2024 22:44:57 +0100
+Subject: [PATCH] fix CVE-2024-6609
+
+CVE: CVE-2024-6609
+Upstream-Status: Inappropriate [upstream ticket: https://groups.google.com/a/mozilla.org/g/dev-tech-crypto/c/t9JmsYkujWM/m/HjKuk-ngBAAJ]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ nss/lib/freebl/ec.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/nss/lib/freebl/ec.c b/nss/lib/freebl/ec.c
+index 73a625a..c9490da 100644
+--- a/nss/lib/freebl/ec.c
++++ b/nss/lib/freebl/ec.c
+@@ -302,6 +302,10 @@ done:
+ 
+ cleanup:
+     mp_clear(&k);
++    if (err < MP_OKAY) {
++        MP_TO_SEC_ERROR(err);
++        rv = SECFailure;
++    }
+     if (rv) {
+         PORT_FreeArena(arena, PR_TRUE);
+     }
+-- 
+2.30.2
+

meta-oe/recipes-support/nss/nss_3.98.bb

@@ -33,6 +33,7 @@ SRC_URI = "http://ftp.mozilla.org/pub/security/nss/releases/${VERSION_DIR}/src/$
            file://nss-fix-nsinstall-build.patch \
            file://0001-freebl-add-a-configure-option-to-disable-ARM-HW-cryp.patch \
            file://CVE-2024-6602.patch \
+           file://CVE-2024-6609.patch \
            "
 SRC_URI[sha256sum] = "f549cc33d35c0601674bfacf7c6ad683c187595eb4125b423238d3e9aa4209ce"