From patchwork Fri Feb 20 19:11:29 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Marko, Peter" X-Patchwork-Id: 81512 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A2A2C5AD4E for ; Fri, 20 Feb 2026 19:11:50 +0000 (UTC) Received: from mta-64-227.siemens.flowmailer.net (mta-64-227.siemens.flowmailer.net [185.136.64.227]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.5253.1771614703013798158 for ; Fri, 20 Feb 2026 11:11:44 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=peter.marko@siemens.com header.s=fm2 header.b=Ypa0Ca3/; spf=pass (domain: rts-flowmailer.siemens.com, ip: 185.136.64.227, mailfrom: fm-256628-202602201911399203c0a43a000207a1-mthwry@rts-flowmailer.siemens.com) Received: by mta-64-227.siemens.flowmailer.net with ESMTPSA id 202602201911399203c0a43a000207a1 for ; Fri, 20 Feb 2026 20:11:40 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm2; d=siemens.com; i=peter.marko@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc; bh=Zjoc6NSSkY22xZtpKBO0lTYOzvNfCrBedYDodx/fGDo=; b=Ypa0Ca3/UwnkbWgSYbZW1E6UvMmRhBBHzFqJBQV/riOEDbL0Y9zP1cAL2vEdOatO46VPm8 g5shvmA2uBOxsQrbBvYPZl35vukmtJ7vFjE9t16RCH0N04D4kJnjir42cRnmv1+kXO5CK9AV crD5zr7PfoPf0Tgjz+DJkCVRYUUYaZ6ecsfyUyQpc/3d2q9vXyLk0YBmx8/Jr3ZNrT93WIWy mzh2nK1Zgk1R1Z+S5vNLb+Oj/lq/OAdreimhg9Fx/sJWf3pB4kQ2m4NjRsxDbldnIHN+Jm2y D6KciUurtzXjhBF+M97HSXjfz9UTmBgjJdwESeX1HUEafc3uuYA0G1Ow==; From: Peter Marko To: openembedded-core@lists.openembedded.org Cc: peter.marko@siemens.com Subject: [OE-core][kirkstone][PATCH 1/4] avahi: patch CVE-2025-68276 Date: Fri, 20 Feb 2026 20:11:29 +0100 Message-Id: <20260220191132.19689-1-peter.marko@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-256628:519-21489:flowmailer 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 ; Fri, 20 Feb 2026 19:11:50 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/231544 From: Ankur Tyagi Backport the patch[1] from the PR[2] mentioned in the nvd[3]. [1] https://github.com/avahi/avahi/commit/2d48e42d44a183f26a4d12d1f5d41abb9b7c6355 [2] https://github.com/avahi/avahi/pull/806 [3] https://nvd.nist.gov/vuln/detail/CVE-2025-68276 Dropped CI changes from the original PR during backport. Signed-off-by: Ankur Tyagi Signed-off-by: Yoann Congal Signed-off-by: Peter Marko --- meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + .../avahi/files/CVE-2025-68276.patch | 65 +++++++++++++++++++ 2 files changed, 66 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb b/meta/recipes-connectivity/avahi/avahi_0.8.bb index 20b2791ef32..b38fedb38bf 100644 --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb @@ -37,6 +37,7 @@ SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV} file://CVE-2023-38473.patch \ file://CVE-2024-52616.patch \ file://CVE-2024-52615.patch \ + file://CVE-2025-68276.patch \ " UPSTREAM_CHECK_URI = "https://github.com/lathiat/avahi/releases/" diff --git a/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch b/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch new file mode 100644 index 00000000000..75169419f10 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2025-68276.patch @@ -0,0 +1,65 @@ +From 8ec85459d8e6e59cc14457e16fb7ba171901f90e Mon Sep 17 00:00:00 2001 +From: Evgeny Vereshchagin +Date: Wed, 17 Dec 2025 08:11:23 +0000 +Subject: [PATCH] core: refuse to create wide-area record browsers when + wide-area is off + +It fixes a bug where it was possible for unprivileged local users to +crash avahi-daemon (with wide-area disabled) by creating record browsers +with the AVAHI_LOOKUP_USE_WIDE_AREA flag set via D-Bus (either by calling +the RecordBrowserNew method directly or by creating hostname/address/service +resolvers/browsers that create those browsers internally themselves). + +``` +$ gdbus call --system --dest org.freedesktop.Avahi --object-path / --method org.freedesktop.Avahi.Server.ResolveHostName -- -1 -1 yo.local -1 1 +Error: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying +``` +``` +dbus-protocol.c: interface=org.freedesktop.Avahi.Server, path=/, member=ResolveHostName +avahi-daemon: wide-area.c:725: avahi_wide_area_scan_cache: Assertion `e' failed. +==307948== +==307948== Process terminating with default action of signal 6 (SIGABRT) +==307948== at 0x4B3630C: __pthread_kill_implementation (pthread_kill.c:44) +==307948== by 0x4ADF921: raise (raise.c:26) +==307948== by 0x4AC74AB: abort (abort.c:77) +==307948== by 0x4AC741F: __assert_fail_base.cold (assert.c:118) +==307948== by 0x48D8B85: avahi_wide_area_scan_cache (wide-area.c:725) +==307948== by 0x48C8953: lookup_scan_cache (browse.c:351) +==307948== by 0x48C8B1B: lookup_go (browse.c:386) +==307948== by 0x48C9148: defer_callback (browse.c:516) +==307948== by 0x48AEA0E: expiration_event (timeeventq.c:94) +==307948== by 0x489D3AE: timeout_callback (simple-watch.c:447) +==307948== by 0x489D787: avahi_simple_poll_dispatch (simple-watch.c:563) +==307948== by 0x489D91E: avahi_simple_poll_iterate (simple-watch.c:605) +==307948== +``` + +wide-area has been disabled by default since +9c4214146738146e454f098264690e8e884c39bd (v0.9-rc2). + +https://github.com/avahi/avahi/security/advisories/GHSA-mhf3-865v-g5rc + +CVE: CVE-2025-68276 +Upstream-Status: Backport [https://github.com/avahi/avahi/commit/2d48e42d44a183f26a4d12d1f5d41abb9b7c6355] +(cherry picked from commit 2d48e42d44a183f26a4d12d1f5d41abb9b7c6355) +Signed-off-by: Ankur Tyagi +--- + avahi-core/browse.c | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/avahi-core/browse.c b/avahi-core/browse.c +index e8a915e..59d53cb 100644 +--- a/avahi-core/browse.c ++++ b/avahi-core/browse.c +@@ -541,6 +541,11 @@ AvahiSRecordBrowser *avahi_s_record_browser_prepare( + AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS); + AVAHI_CHECK_VALIDITY_RETURN_NULL(server, !(flags & AVAHI_LOOKUP_USE_WIDE_AREA) || !(flags & AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS); + ++ if ((flags & AVAHI_LOOKUP_USE_WIDE_AREA) && !server->wide_area_lookup_engine) { ++ avahi_server_set_errno(server, AVAHI_ERR_NOT_SUPPORTED); ++ return NULL; ++ } ++ + if (!(b = avahi_new(AvahiSRecordBrowser, 1))) { + avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY); + return NULL;