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[scarthgap,v2,5/8] cups: fix CVE-2026-34979

Message ID 20260721174217.229620-5-deeratho@cisco.com
State New
Headers show
Series [scarthgap,v2,1/8] cups: fix CVE-2026-27447 | expand

Commit Message

Deepak Rathore -X (deeratho - E INFOCHIPS PRIVATE LIMITED at Cisco) July 21, 2026, 5:42 p.m. UTC 
From: Deepak Rathore <deeratho@cisco.com>

Pick the upstream patch [1] as mentioned in [2].

[1] https://github.com/OpenPrinting/cups/commit/0ff8897367c7341f2500770c3977038cdd7c0214
[2] https://security-tracker.debian.org/tracker/CVE-2026-34979

Signed-off-by: Deepak Rathore <deeratho@cisco.com>
---
Changes in v2:
- Rebased the patch on current Scarthgap CUPS recipe context.
- Refreshed the embedded source patch context; no CVE logic changes.

 meta/recipes-extended/cups/cups.inc           |  1 +
 .../cups/cups/CVE-2026-34979.patch            | 61 +++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 meta/recipes-extended/cups/cups/CVE-2026-34979.patch
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Patch

diff --git a/meta/recipes-extended/cups/cups.inc b/meta/recipes-extended/cups/cups.inc
index 7a8b845953..a0ac1a2612 100644
--- a/meta/recipes-extended/cups/cups.inc
+++ b/meta/recipes-extended/cups/cups.inc
@@ -28,6 +28,7 @@  SRC_URI = "${GITHUB_BASE_URI}/download/v${PV}/cups-${PV}-source.tar.gz \
            file://CVE-2026-34980.patch \
            file://CVE-2026-34980-regression_p1.patch \
            file://CVE-2026-34980-regression_p2.patch \
+           file://CVE-2026-34979.patch \
            "
 
 GITHUB_BASE_URI = "https://github.com/OpenPrinting/cups/releases"
diff --git a/meta/recipes-extended/cups/cups/CVE-2026-34979.patch b/meta/recipes-extended/cups/cups/CVE-2026-34979.patch
new file mode 100644
index 0000000000..38ac7b6e91
--- /dev/null
+++ b/meta/recipes-extended/cups/cups/CVE-2026-34979.patch
@@ -0,0 +1,61 @@ 
+From 471b4dc802455c7c59f9fd594fec8b6f3acb0db5 Mon Sep 17 00:00:00 2001
+From: Michael R Sweet <msweet@msweet.org>
+Date: Tue, 31 Mar 2026 14:50:06 -0400
+Subject: [PATCH] Expand allocation of options string.
+
+CVE: CVE-2026-34979
+Upstream-Status: Backport [https://github.com/OpenPrinting/cups/commit/0ff8897367c7341f2500770c3977038cdd7c0214]
+
+Backport Changes:
+- Rebase scheduler/job.c IPP length context to the CUPS 2.4.11 source
+  carried by this recipe.
+- Omit the upstream CHANGES.md release-note hunk because Yocto patch metadata
+  carries the CVE details and the target source release-note sections differ.
+
+(cherry picked from commit 0ff8897367c7341f2500770c3977038cdd7c0214)
+Signed-off-by: Deepak Rathore <deeratho@cisco.com>
+---
+ scheduler/job.c |   16 ++++------------
+ 1 file changed, 4 insertions(+), 12 deletions(-)
+
+diff --git a/scheduler/job.c b/scheduler/job.c
+index 915ba94..880c25f 100644
+--- a/scheduler/job.c
++++ b/scheduler/job.c
+@@ -4195,18 +4195,6 @@ ipp_length(ipp_t *ipp)			/* I - IPP request */
+ 
+   for (attr = ipp->attrs; attr != NULL; attr = attr->next)
+   {
+-   /*
+-    * Skip attributes that won't be sent to filters...
+-    */
+-
+-    if (attr->value_tag == IPP_TAG_NOVALUE ||
+-	attr->value_tag == IPP_TAG_MIMETYPE ||
+-	attr->value_tag == IPP_TAG_NAMELANG ||
+-	attr->value_tag == IPP_TAG_TEXTLANG ||
+-	attr->value_tag == IPP_TAG_URI ||
+-	attr->value_tag == IPP_TAG_URISCHEME)
+-      continue;
+-
+    /*
+     * Add space for a leading space and commas between each value.
+     * For the first attribute, the leading space isn't used, so the
+@@ -4282,10 +4270,14 @@ ipp_length(ipp_t *ipp)			/* I - IPP request */
+ 
+       case IPP_TAG_TEXT :
+       case IPP_TAG_NAME :
++      case IPP_TAG_TEXTLANG :
++      case IPP_TAG_NAMELANG :
++      case IPP_TAG_MIMETYPE :
+       case IPP_TAG_KEYWORD :
+       case IPP_TAG_CHARSET :
+       case IPP_TAG_LANGUAGE :
+       case IPP_TAG_URI :
++      case IPP_TAG_URISCHEME :
+          /*
+ 	  * Strings can contain characters that need quoting.  We need
+ 	  * at least 2 * len + 2 characters to cover the quotes and
+-- 
+2.43.7
+