From patchwork Thu Oct 29 10:30:12 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" X-Patchwork-Id: 102370 Received: from rcdn-iport-7.cisco.com (rcdn-iport-7.cisco.com [173.37.86.78]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.8733.1793269813984050624 for ; Thu, 29 Oct 2026 03:30:14 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="dkim: message contains an insecure body length tag" header.i=@cisco.com header.s=iport01 header.b=DT3/G0LD; spf=pass (domain: cisco.com, ip: 173.37.86.78, mailfrom: hthakar@cisco.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=3497; q=dns/txt; s=iport01; t=1793269814; x=1794479414; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HsC5ytA7eOCh5Ap+NAEtFAlmKns0vhAlRPqoMT9rMqk=; b=DT3/G0LDuDWpaA7DCZlJQgy6dLMymVgUkdhI/mkeDhOvgfF3XKPcZJq7 KWuaah60voHRvslGGEaIOrEKnHmVbhIaUuoDX5GiBB5rYxCLKX65dW3Yp syBQlvLdwLt4sto8Ug0FJtUdve53wq1x3eD4tIItN6b05WOcLWDtxQJJg BWAjdgNzUreS1SsJwIV/3WbXAo+8Re4j189KR8wfPLXmy6ZkMeSYdJg0R ZW2/BCfF7IT+5hFz0gKqjxdQx/RqqW1whuviDCgBeHxWE2j++wfXv4r+8 NjQP89T0ryThyqVYS6MDPLO5fkfsXWMNNIG1ikJH3+TJVFXpYGCjBx2F7 w==; X-CSE-ConnectionGUID: ICDrRo71SJK4f5yq4skMdQ== X-CSE-MsgGUID: NLzrYYVlQta+dy7M41lb9Q== X-IPAS-Result: A0BIAgCjH+Nq/43/Ja1aglmCV3VgQ0kDlkgDnhyBfg8BAQEPRA0EAQGFBQKOHAImNAkOAQIEAwIDAQEBAQEBAQEBAQEBCgEBBQEBAQIBBwWBDhOGTw2QEgECAQMyARgBLRAcAwECLysjCBkagmgBgnQDEbRMgiyBAYMpAT8CQ1DbMwELFAEFgTOFQIgjXRgBhH0nGxuBcoEUAYE7gi6BBYFcAoIGhh8EgiJ6EoFaHoYyhl4Ch1NIgR4DWSwBVRMNCgsHBYFoAzUSKhVuMh2BIz4XgQcbBgWBHYEegRmBB12BKylgASGBCIF2AoJRggACAUlBDgdFUwklQxJHJCIIEgkBExouC4EaNTwJJkEVDGQLGgViCAINDHY5EDEgJjIEAx0YDUgRLDcVGQQ+bgeRXYMOFmUTARMYgWgBQ5MRkESCIaEPCiiDdowilToaM6pvC5h9jgqVU32EaYFoPIFZcBWDIglKGQ+OOYNrM4RgyUcnMgIJAy8BAQcCBw4DC4FokX4BAQ IronPort-Data: A9a23:QDqTRajPgpdsrfW+nvMbIQTAX161NhEKZh0ujC45NGQN5FlHY01je htvDGCGPa6JNmv8LYxya4vgoU9UvcTRz9MyHFNv/HxmFC1jpJueD7x1DKtf0wB+jyHnZBg6h ynLQoCYdKjYdleF+FHwdOCn8ikkvU2xbuKUIPbePSxsThNTRi4kiBZy88Y0mYcAbeKRW2thg vus5ZeAULOZ82QsaDxNs/jS8EoHUMna4Vv0gHRvPZing3eG/5UlJMp3Db28KXL+Xr5VEoaSL 87fzKu093/u5BwkDNWoiN7TKiXmlZaLYGBiIlIPM0STqkAqSh4ai87XB9JAAatjsAhlqvgqo Dl7WTNcfi9yVkHEsLx1vxC1iEiSN4UekFPMCSDXXcB+UyQqflO0q8iCAn3aMqU50cptO2YRr Mc6C2wDMwGa2/m15b6CH7wEasQLdKEHPasFsX1miDWcBvE8TNWbH+PB5MRT23E7gcUm8fT2P pVCL2EwKk6dPlsWZg5/5JEWxI9EglH/bz1Rq1uPjaE2+GPUigd21dABNfKIJoXSFZoEzxjwS mTu2UDrGCArCtim1TPG/mPzo7OWmSmqYddHfFG/3rsw6LGJ/UQUEBAQWF6xrPW1h0L7UNVFJ mQQ+zEytu417EGtQ9z3UhG0rXLCuQQTM+e8CMUg4w2Lj66R6AGDCy1cEnhKaccts4k9QjlCO kK1ou4FzAdH6NW9IU9xPJ/Oxd9uEUD59VM/WBI= IronPort-HdrOrdr: A9a23:51G+HawyaRpj55l0ZEf6KrPw9L1zdoMgy1knxilNoNJuHfBw8P re+8jzuiWUtN98YhwdcJW7Scu9qBDnhPpICPcqXYtKNTOO0ADDEGgh1/qG/9SKIUPDH4BmuZ uIWpIObuEYdWIK7vrS0U2fD8sqxsWB/eSDgOfTyGoocCRRApsQljuQzm2gYzZLrM4sP+tAKK ah X-Talos-CUID: 9a23:d/jZw2mkfnNfduzOXVoU2pbVlUzXOVz24G3qJBDhMkRKFLPIWEbM46BBn/M7zg== X-Talos-MUID: 9a23:hOPC0wUmQZ7jAkfq/BnIlitTBfls2rinS0wczrBa4s2OZBUlbg== X-IronPort-Anti-Spam-Filtered: true X-IronPort-AV: E=Sophos;i="6.27,184,1787011200"; d="scan'208";a="541087996" Received: from rcdn-l-core-04.cisco.com ([173.37.255.141]) by rcdn-iport-7.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 29 Oct 2026 10:30:13 +0000 Received: from sjc-ads-5245.cisco.com (sjc-ads-5245.cisco.com [10.28.23.9]) (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) (No client certificate requested) by rcdn-l-core-04.cisco.com (Postfix) with ESMTPS id D0C51180005D0; Thu, 29 Oct 2026 10:30:12 +0000 (GMT) Received: by sjc-ads-5245.cisco.com (Postfix, from userid 1887505) id 78EAECBF202; Thu, 29 Oct 2026 03:30:12 -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 Subject: [OE-core][wrynose][PATCH v2 3/3] lrzsz: fix CVE-2026-105842 Date: Thu, 29 Oct 2026 03:30:12 -0700 Message-Id: <20261029103012.2335950-3-hthakar@cisco.com> X-Mailer: git-send-email 2.35.6 In-Reply-To: <20261029103012.2335950-1-hthakar@cisco.com> References: <20261029103012.2335950-1-hthakar@cisco.com> MIME-Version: 1.0 X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-Client-TLS: ANONYMOUS;sjc-ads-5245.cisco.com [10.28.23.9];TLSv1.3;TLS_AES_256_GCM_SHA384;256 X-Outbound-SMTP-Client: 10.28.23.9, sjc-ads-5245.cisco.com X-Outbound-Node: rcdn-l-core-04.cisco.com List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by lin-tor-korg-lkml-alma10-1 with HTTPS for ; Thu, 29 Oct 2026 10:30:19 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/248931 From: Hetvi Thakar Overlong sender-controlled filenames can overflow the fixed-size Pathname buffer when copied with strcpy(), causing heap memory corruption. Backport upstream commit [1], which replaces the remaining fixed-size Pathname allocations and copies with strdup(). This allocates space for the complete filename and addresses the vulnerability described in [2]. [1] https://github.com/UweOhse/lrzsz/commit/f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f [2] https://security-tracker.debian.org/tracker/CVE-2026-105842 Signed-off-by: Hetvi Thakar --- Changes in v2: - corrected the advisory reference in commit messsage --- .../lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch | 57 +++++++++++++++++++ meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb | 1 + 2 files changed, 58 insertions(+) create mode 100644 meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch diff --git a/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch b/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch new file mode 100644 index 00000000000..afa6a8ab3b4 --- /dev/null +++ b/meta/recipes-bsp/lrzsz/lrzsz-0.12.20/CVE-2026-105842.patch @@ -0,0 +1,57 @@ +From f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f Mon Sep 17 00:00:00 2001 +From: Uwe Ohse at akiar +Date: Mon, 10 Aug 2026 18:40:36 +0200 +Subject: [PATCH] avoid buffer overflows by strdup instead of + malloc(PATH_MAX+...). + +CVE: CVE-2026-105842 +Upstream-Status: Backport [https://github.com/UweOhse/lrzsz/commit/f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f] + +Backport Changes: +- Omitted NEWS because its 0.13.0 release-note hunk conflicts with the + 0.12.20 release history and is not needed for the security fix. + +(cherry picked from commit f8caa7b1b1a3a1bb50cf08677b15be7b17c2956f) +Signed-off-by: Hetvi Thakar +--- + src/lrz.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/src/lrz.c b/src/lrz.c +index 168636e..e11f909 100644 +--- a/src/lrz.c ++++ b/src/lrz.c +@@ -743,11 +743,10 @@ wcreceive(int argc, char **argp) + if (Pathname) + free(Pathname); + errno=0; +- Pathname=malloc(PATH_MAX+1); ++ Pathname=strdup(*argp); + if (!Pathname) + error(1,0,_("out of memory")); + +- strcpy(Pathname, *argp); + checkpath(Pathname); + #ifdef ENABLE_SYSLOG + shortname=strrchr(*argp,'/'); +@@ -1288,15 +1287,16 @@ procheader(char *name, struct zm_fileinfo *zi) + return OK; /* dummy */ + if (Pathname) + free(Pathname); +- Pathname=malloc((PATH_MAX)*2); ++ ++ Pathname=strdup(name_static); + if (!Pathname) + error(1,0,_("out of memory")); +- strcpy(Pathname, name_static); + if (Verbose) { + /* overwrite the "waiting to receive" line */ + vstring("\r \r"); + vstringf(_("Receiving: %s\n"), name_static); + } ++ + checkpath(name_static); + if (Nflag) + { +-- +2.35.6 diff --git a/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb b/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb index ec98f690153..a6d1f62c61e 100644 --- a/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb +++ b/meta/recipes-bsp/lrzsz/lrzsz_0.12.20.bb @@ -23,6 +23,7 @@ SRC_URI = "https://www.ohse.de/uwe/releases/lrzsz-${PV}.tar.gz \ file://0001-lrzsz-convert-K-R-function-definitions-to-ANSI-C-pro.patch \ file://CVE-2026-105841.patch \ file://CVE-2026-105840.patch \ + file://CVE-2026-105842.patch \ " SRC_URI[sha256sum] = "c28b36b14bddb014d9e9c97c52459852f97bd405f89113f30bee45ed92728ff1"