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charset=\"UTF-8\"","Content-ID":"<9261F5960012C34580B794386CD29F36@EURPRD10.PROD.OUTLOOK.COM>","MIME-Version":"1.0","X-OriginatorOrg":"siemens.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-AuthSource":"DB9PR10MB5404.EURPRD10.PROD.OUTLOOK.COM","X-MS-Exchange-CrossTenant-Network-Message-Id":"\n dc6103e3-6e36-4728-2bf1-08de9faf1612","X-MS-Exchange-CrossTenant-originalarrivaltime":"21 Apr 2026 14:05:47.1269\n (UTC)","X-MS-Exchange-CrossTenant-fromentityheader":"Hosted","X-MS-Exchange-CrossTenant-id":"38ae3bcd-9579-4fd4-adda-b42e1495d55a","X-MS-Exchange-CrossTenant-mailboxtype":"HOSTED","X-MS-Exchange-CrossTenant-userprincipalname":"\n pk5EcYXjnlK7AgTwws1KkDEllpqjEv0c+ffeOD7hs3Rtz2SpbCzHK6WX1NsfAjxxXY2KFSIfpKtEFnAbtAFwEMb/iyXgvh9wsF+tw3cTjA0=","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"AS2PR10MB6973","X-Original-Sender":"christian.storm@siemens.com","X-Original-Authentication-Results":"gmr-mx.google.com; dkim=pass\n header.i=@siemens.com header.s=selector2 header.b=CUAarGYB; arc=pass\n (i=1 spf=pass spfdomain=siemens.com dkim=pass dkdomain=siemens.com dmarc=pass\n fromdomain=siemens.com); spf=pass (google.com: domain of\n christian.storm@siemens.com designates 2a01:111:f403:c200::3 as permitted\n sender) smtp.mailfrom=christian.storm@siemens.com; dmarc=pass (p=REJECT\n sp=REJECT dis=NONE) header.from=siemens.com","X-Original-From":"\"Storm, Christian\" ","Reply-To":"\"Storm, Christian\" ","Precedence":"list","Mailing-list":"list swupdate@googlegroups.com;\n contact swupdate+owners@googlegroups.com","List-ID":"","X-Spam-Checked-In-Group":"swupdate@googlegroups.com","X-Google-Group-Id":"605343134186","List-Post":",\n ","List-Help":",\n ","List-Archive":",\n ","List-Unsubscribe":"\n ,\n "},"content":"From: Felix Moessbauer \n\nThe EVP_DigestFinal_ex function returns 1 on success, 0 on failure.\nHowever, the caller expects < 0 as failure, success otherwise. By that,\nfailures in the HASH_final function are silently ignored.\n\nThis currently cannot be exploited, as the md_len != SHA256_HASH_LENGTH\nin cpio_utils.c catches this (the md_len stays at the initial value of\n0). We fix it by explicitly comparing the result of EVP_DigestFinal_ex\nagainst the expected values.\n\nFixes: d38d5359 (\"Prepare to use multiple crypto engines\")\nSigned-off-by: Felix Moessbauer \n---\ncrypto/swupdate_HASH_openssl.c | 4 +++-\n1 file changed, 3 insertions(+), 1 deletion(-)","diff":"diff --git a/crypto/swupdate_HASH_openssl.c b/crypto/swupdate_HASH_openssl.c\nindex 9820b9c5..32fe8047 100644\n--- a/crypto/swupdate_HASH_openssl.c\n+++ b/crypto/swupdate_HASH_openssl.c\n@@ -87,8 +87,10 @@ static int openssl_HASH_final(void *ctx, unsigned char *md_value,\nif (!dgst)\nreturn -EFAULT;\n\n- return EVP_DigestFinal_ex (dgst->ctx, md_value, md_len);\n+ if (EVP_DigestFinal_ex (dgst->ctx, md_value, md_len) != 1)\n+ return -EIO;\n\n+ return 0;\n}\n\nstatic void openssl_HASH_cleanup(void *ctx)\n","prefixes":["1/2"]}