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[2a01:cb00:1331:aa00:a2e4:fb7b:d88:7544]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-496b4f24a93sm142482505e9.11.2026.07.26.01.30.11 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Jul 2026 01:30:11 -0700 (PDT) From: Yoann Congal To: openembedded-core@lists.openembedded.org Subject: [OE-core][scarthgap 05/31] libxml2: Fix CVE-2026-11979 Date: Sun, 26 Jul 2026 10:29:29 +0200 Message-ID: X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sun, 26 Jul 2026 08:30:21 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/241986 From: Devansh Patel This patch applies the upstream fix as referenced in [2], using the commit shown in [1]. [1] https://gitlab.gnome.org/GNOME/libxml2/-/commit/c2e233fc1b341685fc99621b2768b503f777a72e [2] https://nvd.nist.gov/vuln/detail/CVE-2026-11979 Signed-off-by: Devansh Patel Signed-off-by: Yoann Congal --- .../libxml/libxml2/CVE-2026-11979.patch | 70 +++++++++++++++++++ meta/recipes-core/libxml/libxml2_2.12.10.bb | 1 + 2 files changed, 71 insertions(+) create mode 100644 meta/recipes-core/libxml/libxml2/CVE-2026-11979.patch diff --git a/meta/recipes-core/libxml/libxml2/CVE-2026-11979.patch b/meta/recipes-core/libxml/libxml2/CVE-2026-11979.patch new file mode 100644 index 00000000000..427026b345f --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/CVE-2026-11979.patch @@ -0,0 +1,70 @@ +From d8566dd918c612078dfb3ee1a95d7bb6f0656bfe Mon Sep 17 00:00:00 2001 +From: Daniel Garcia Moreno +Date: Fri, 22 May 2026 12:21:20 +0200 +Subject: [PATCH] xmlcatalog: overflow check for large --shell commands + +Fix https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1124 + +CVE: CVE-2026-11979 +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/c2e233fc1b341685fc99621b2768b503f777a72e] + +Backport Changes: +- The commit modifies test/catalogs/test.sh. +- test/catalogs/test.sh does not exist in the libxml2 v2.12.10 + source used in Scarthgap and was introduced later version + libxml2 v2.14.0 [1]. +- The test changes were omitted; only the required fix in + xmlcatalog.c was backported. + +[1] https://gitlab.gnome.org/GNOME/libxml2/-/commit/f06fc933cdaea2ce8e9cea275fdbf4edb85f9837 + +(cherry picked from commit c2e233fc1b341685fc99621b2768b503f777a72e) +Signed-off-by: Devansh Patel +--- + xmlcatalog.c | 16 ++++++++++++++++ + 1 file changed, 16 insertions(+) + +diff --git a/xmlcatalog.c b/xmlcatalog.c +index 588802b41..51569b879 100644 +--- a/xmlcatalog.c ++++ b/xmlcatalog.c +@@ -114,6 +114,12 @@ static void usershell(void) { + (*cur != '\n') && (*cur != '\r')) { + if (*cur == 0) + break; ++ /* Do not read beyond the command array capacity */ ++ if (i >= (int)sizeof(command) - 2) { ++ printf("Invalid command %s\n", cur); ++ i = 0; ++ break; ++ } + command[i++] = *cur++; + } + command[i] = 0; +@@ -131,6 +137,11 @@ static void usershell(void) { + while ((*cur != '\n') && (*cur != '\r') && (*cur != 0)) { + if (*cur == 0) + break; ++ if (i >= (int)sizeof(arg) - 2) { ++ printf("Invalid arg %s\n", arg); ++ i = 0; ++ break; ++ } + arg[i++] = *cur++; + } + arg[i] = 0; +@@ -143,6 +154,11 @@ static void usershell(void) { + cur = arg; + memset(argv, 0, sizeof(argv)); + while (*cur != 0) { ++ if (i >= (int)sizeof(argv) / (int)sizeof(char*)) { ++ printf("Too much arguments\n"); ++ break; ++ } ++ + while ((*cur == ' ') || (*cur == '\t')) cur++; + if (*cur == '\'') { + cur++; +-- +2.35.6 + diff --git a/meta/recipes-core/libxml/libxml2_2.12.10.bb b/meta/recipes-core/libxml/libxml2_2.12.10.bb index 2bfa78324f6..d476ba14b6e 100644 --- a/meta/recipes-core/libxml/libxml2_2.12.10.bb +++ b/meta/recipes-core/libxml/libxml2_2.12.10.bb @@ -31,6 +31,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testt file://CVE-2026-0992-02.patch \ file://CVE-2026-0992-03.patch \ file://CVE-2026-1757.patch \ + file://CVE-2026-11979.patch \ " SRC_URI[archive.sha256sum] = "c3d8c0c34aa39098f66576fe51969db12a5100b956233dc56506f7a8679be995"