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d="scan'208";a="789906085" Received: from alln-l-core-07.cisco.com ([173.36.16.144]) by alln-iport-4.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 28 Jul 2026 12:31:18 +0000 Received: from sjc-ads-8351.cisco.com (sjc-ads-8351.cisco.com [171.68.209.139]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "ciscoit-managed-infra-smtp-auth.cisco.com", Issuer "Internal Private TLS SubCA" (verified OK)) by alln-l-core-07.cisco.com (Postfix) with ESMTPS id 43C78180001F4; Tue, 28 Jul 2026 12:31:18 +0000 (GMT) Received: by sjc-ads-8351.cisco.com (Postfix, from userid 1887505) id CFDBDCC12A6; Tue, 28 Jul 2026 05:31:17 -0700 (PDT) From: "Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Cc: xe-linux-external@cisco.com, Hetvi Thakar Subject: [OE-core][PATCH 1/2] patch: Fix CVE-2026-56289 Date: Tue, 28 Jul 2026 05:31:03 -0700 Message-ID: <20260728123113.3485106-1-hthakar@cisco.com> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-Client-TLS: VERIFIED;sjc-ads-8351.cisco.com [171.68.209.139];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 171.68.209.139, sjc-ads-8351.cisco.com X-Outbound-Node: alln-l-core-07.cisco.com 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 ; Tue, 28 Jul 2026 12:31:29 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/242189 From: Hetvi Thakar This patch applies the upstream fix referenced by NVD in [2], using the commit shown in [1]. [1] https://cgit.git.savannah.gnu.org/cgit/patch.git/commit/?id=faba04ef4f2b410257f76c1b9dc85e350929c4b9 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-56289 Signed-off-by: Hetvi Thakar --- meta/recipes-devtools/patch/patch.inc | 4 ++- .../patch/patch/CVE-2026-56289.patch | 36 +++++++++++++++++++ 2 files changed, 39 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-devtools/patch/patch/CVE-2026-56289.patch diff --git a/meta/recipes-devtools/patch/patch.inc b/meta/recipes-devtools/patch/patch.inc index 44d3046fd8..738bec038d 100644 --- a/meta/recipes-devtools/patch/patch.inc +++ b/meta/recipes-devtools/patch/patch.inc @@ -5,7 +5,9 @@ original files, producing patched versions." SECTION = "utils" HOMEPAGE = "http://savannah.gnu.org/projects/patch/" -SRC_URI = "${GNU_MIRROR}/patch/patch-${PV}.tar.gz" +SRC_URI = "${GNU_MIRROR}/patch/patch-${PV}.tar.gz \ + file://CVE-2026-56289.patch" + S = "${UNPACKDIR}/patch-${PV}" inherit autotools update-alternatives diff --git a/meta/recipes-devtools/patch/patch/CVE-2026-56289.patch b/meta/recipes-devtools/patch/patch/CVE-2026-56289.patch new file mode 100644 index 0000000000..8f98c444fc --- /dev/null +++ b/meta/recipes-devtools/patch/patch/CVE-2026-56289.patch @@ -0,0 +1,36 @@ +From e89f7be0853836908226e1df746fe07ef7c46769 Mon Sep 17 00:00:00 2001 +From: Paul Eggert +Date: Tue, 21 Apr 2026 13:16:10 -0700 +Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20infloop=20on=20null=20ranges?= +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Problem reported by Michał Majchrowicz. +* src/patch.c (locate_hunk): Don’t attempt to optimize +matches of a null range. Instead, apply all the checks +we apply to non-null ranges. + +CVE: CVE-2026-56289 +Upstream-Status: Backport [https://cgit.git.savannah.gnu.org/cgit/patch.git/commit/?id=faba04ef4f2b410257f76c1b9dc85e350929c4b9] + +(cherry picked from commit faba04ef4f2b410257f76c1b9dc85e350929c4b9) +Signed-off-by: Hetvi Thakar +--- + src/patch.c | 3 --- + 1 file changed, 3 deletions(-) + +diff --git a/src/patch.c b/src/patch.c +index e4d0524..1e7dfdc 100644 +--- a/src/patch.c ++++ b/src/patch.c +@@ -1166,9 +1166,6 @@ locate_hunk (idx_t fuzz) + ptrdiff_t max_offset = MAX (max_pos_offset, max_neg_offset); + ptrdiff_t min_offset; + +- if (!pat_lines) /* null range matches always */ +- return first_guess; +- + /* Do not try lines <= 0. */ + if (first_guess <= max_neg_offset) + max_neg_offset = first_guess - 1;