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; From patchwork Fri Feb 20 19:11:30 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Marko, Peter" X-Patchwork-Id: 81513 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 6B49DC5AD69 for ; Fri, 20 Feb 2026 19:11:50 +0000 (UTC) Received: from mta-64-228.siemens.flowmailer.net (mta-64-228.siemens.flowmailer.net [185.136.64.228]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.5254.1771614706352206854 for ; Fri, 20 Feb 2026 11:11:46 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=peter.marko@siemens.com header.s=fm2 header.b=d+aCsEGX; spf=pass (domain: rts-flowmailer.siemens.com, ip: 185.136.64.228, mailfrom: fm-256628-20260220191144d0639554ab00020770-vnefbg@rts-flowmailer.siemens.com) Received: by mta-64-228.siemens.flowmailer.net with ESMTPSA id 20260220191144d0639554ab00020770 for ; Fri, 20 Feb 2026 20:11:44 +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:References:In-Reply-To; bh=OdkEINDNncbLGVjpnefdzGxMQ7tKTqUj5B556uayJo8=; b=d+aCsEGXnEdfCrlA7dsyMldqyuSYCFsdRoYY0jFJnXowizg5PazAXLQt+w7Cpv4qFAbqdE Z9SNn6a1/Bm91DTrQW6vASVTtD/L2wf+Dc+0kOcPBLnr+ahXZ7W6MNx0hxTkPXxYVEoC++i7 EnzqIknqq/D8rEFPnYCqgYsfwXJSbK575fLPLIuWWK/k6nz3Bsa1Lhv6P6qDNKzWyhrVnepn rqdXw/A2FFqxLU2/ejWbcZUoPSwJjVzkuVr9V8v2JNCGzYxx7wjko1mJg1XqpHRlzWms378y ILDYVWmBiFTP8Ky0KCKzNdPS2kiPIvHiRRH/nrJEIF4Xq6lNBLgiAYrw==; From: Peter Marko To: openembedded-core@lists.openembedded.org Cc: peter.marko@siemens.com Subject: [OE-core][kirkstone][PATCH 2/4] avahi: patch CVE-2025-68468 Date: Fri, 20 Feb 2026 20:11:30 +0100 Message-Id: <20260220191132.19689-2-peter.marko@siemens.com> In-Reply-To: <20260220191132.19689-1-peter.marko@siemens.com> References: <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/231545 From: Amaury Couderc Signed-off-by: Amaury Couderc Signed-off-by: Mathieu Dubois-Briand Signed-off-by: Ross Burton Signed-off-by: Richard Purdie (cherry picked from commit 9f2ed8adc37a42b561b3c4853cf8106fba39889e) Signed-off-by: Yoann Congal Signed-off-by: Peter Marko --- meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + .../avahi/files/CVE-2025-68468.patch | 32 +++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2025-68468.patch diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb b/meta/recipes-connectivity/avahi/avahi_0.8.bb index b38fedb38bf..3faebcba832 100644 --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb @@ -38,6 +38,7 @@ SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV} file://CVE-2024-52616.patch \ file://CVE-2024-52615.patch \ file://CVE-2025-68276.patch \ + file://CVE-2025-68468.patch \ " UPSTREAM_CHECK_URI = "https://github.com/lathiat/avahi/releases/" diff --git a/meta/recipes-connectivity/avahi/files/CVE-2025-68468.patch b/meta/recipes-connectivity/avahi/files/CVE-2025-68468.patch new file mode 100644 index 00000000000..3635cc8d53e --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2025-68468.patch @@ -0,0 +1,32 @@ +From 483f83828cfda965fac914ff1b39c63c256372b2 Mon Sep 17 00:00:00 2001 +From: Hugo Muis <198191869+friendlyhugo@users.noreply.github.com> +Date: Sun, 2 Mar 2025 18:06:24 +0100 +Subject: [PATCH] core: fix DoS bug by removing incorrect assertion + +Closes https://github.com/avahi/avahi/issues/683 + +CVE: CVE-2025-68468 + +Upstream-Status: Backport +[https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a] + +Signed-off-by: Amaury Couderc +--- + avahi-core/browse.c | 1 - + 1 file changed, 1 deletion(-) + +diff --git a/avahi-core/browse.c b/avahi-core/browse.c +index 86e4432..79595fe 100644 +--- a/avahi-core/browse.c ++++ b/avahi-core/browse.c +@@ -295,7 +295,6 @@ static void lookup_multicast_callback( + lookup_drop_cname(l, interface, protocol, 0, r); + else { + /* It's a normal record, so let's call the user callback */ +- assert(avahi_key_equal(b->key, l->key)); + + b->callback(b, interface, protocol, event, r, flags, b->userdata); + } +-- +2.43.0 + From patchwork Fri Feb 20 19:11:31 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Marko, Peter" X-Patchwork-Id: 81511 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 6D618C5AD6A for ; Fri, 20 Feb 2026 19:11:50 +0000 (UTC) Received: from mta-64-228.siemens.flowmailer.net (mta-64-228.siemens.flowmailer.net [185.136.64.228]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.5254.1771614706352206854 for ; Fri, 20 Feb 2026 11:11:48 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=peter.marko@siemens.com header.s=fm2 header.b=NXKwYobU; spf=pass (domain: rts-flowmailer.siemens.com, ip: 185.136.64.228, mailfrom: fm-256628-2026022019114864d602f5aa0002072d-htdaep@rts-flowmailer.siemens.com) Received: by mta-64-228.siemens.flowmailer.net with ESMTPSA id 2026022019114864d602f5aa0002072d for ; Fri, 20 Feb 2026 20:11:48 +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:References:In-Reply-To; bh=N83/T2kp4zCB2K6rjDD1GGS6oOSm7/KBiyCB4Yl6/Ww=; b=NXKwYobU/OiaLRTiOLj3rwph/WDZejeENuAJHm7cdjY6yq8/xs2kHJyHW635qsGUU7eewo UyGjRKKzeeaw7j4Ztrm125yPFq6Vd+VZSxKn0oj9SPbx5PDHzvuGEcaGn/uwj8Sbw44tOVuN TM49Wo54MhqbvEeOFiDKc4M1aTJ7PxScRCwe5GAvDhMt11Sn63TUbdUCeC0D3jFmE/FnSGO3 PWbvYHHM+a/dzvCHxJ9fqEUZn+peH9SQbYL3eEZCntqsPZWYmPi+cD4YY7EIi5TDOvb2AEHa 5uNrRwGAbB+9wS+b6uH7Oe3F0GEYyjuGunkQObPWk534/OPoQE+JtFUw==; From: Peter Marko To: openembedded-core@lists.openembedded.org Cc: peter.marko@siemens.com Subject: [OE-core][kirkstone][PATCH 3/4] avahi: patch CVE-2025-68471 Date: Fri, 20 Feb 2026 20:11:31 +0100 Message-Id: <20260220191132.19689-3-peter.marko@siemens.com> In-Reply-To: <20260220191132.19689-1-peter.marko@siemens.com> References: <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/231546 From: Amaury Couderc Signed-off-by: Amaury Couderc Signed-off-by: Mathieu Dubois-Briand Signed-off-by: Ross Burton Signed-off-by: Richard Purdie (cherry picked from commit 5ec4156330c765bc52dbce28dbba6def9868d30f) Signed-off-by: Yoann Congal Signed-off-by: Peter Marko --- meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + .../avahi/files/CVE-2025-68471.patch | 36 +++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2025-68471.patch diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb b/meta/recipes-connectivity/avahi/avahi_0.8.bb index 3faebcba832..c1d919783c1 100644 --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb @@ -39,6 +39,7 @@ SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV} file://CVE-2024-52615.patch \ file://CVE-2025-68276.patch \ file://CVE-2025-68468.patch \ + file://CVE-2025-68471.patch \ " UPSTREAM_CHECK_URI = "https://github.com/lathiat/avahi/releases/" diff --git a/meta/recipes-connectivity/avahi/files/CVE-2025-68471.patch b/meta/recipes-connectivity/avahi/files/CVE-2025-68471.patch new file mode 100644 index 00000000000..210565cdd61 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2025-68471.patch @@ -0,0 +1,36 @@ +From 4e84c1d6eb2f54d1643bd7ce62817c722ca36d25 Mon Sep 17 00:00:00 2001 +From: Hugo Muis <198191869+friendlyhugo@users.noreply.github.com> +Date: Sun, 2 Mar 2025 18:06:24 +0100 +Subject: [PATCH] core: fix DoS bug by changing assert to return + +Closes https://github.com/avahi/avahi/issues/678 + +CVE: CVE-2025-68471 + +Upstream-Status: Backport +[https://github.com/avahi/avahi/commit/9c6eb53bf2e290aed84b1f207e3ce35c54cc0aa1] + +Signed-off-by: Amaury Couderc +--- + avahi-core/browse.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/avahi-core/browse.c b/avahi-core/browse.c +index 2941e57..86e4432 100644 +--- a/avahi-core/browse.c ++++ b/avahi-core/browse.c +@@ -320,7 +320,10 @@ static int lookup_start(AvahiSRBLookup *l) { + assert(l); + + assert(!(l->flags & AVAHI_LOOKUP_USE_WIDE_AREA) != !(l->flags & AVAHI_LOOKUP_USE_MULTICAST)); +- assert(!l->wide_area && !l->multicast); ++ if (l->wide_area || l->multicast) { ++ /* Avoid starting a duplicate lookup */ ++ return 0; ++ } + + if (l->flags & AVAHI_LOOKUP_USE_WIDE_AREA) { + +-- +2.43.0 + From patchwork Fri Feb 20 19:11:32 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Marko, Peter" X-Patchwork-Id: 81514 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 4DD1EC5AD69 for ; Fri, 20 Feb 2026 19:12:00 +0000 (UTC) Received: from mta-64-225.siemens.flowmailer.net (mta-64-225.siemens.flowmailer.net [185.136.64.225]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.5127.1771614712651806450 for ; Fri, 20 Feb 2026 11:11:52 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=peter.marko@siemens.com header.s=fm2 header.b=VsSFs2S/; spf=pass (domain: rts-flowmailer.siemens.com, ip: 185.136.64.225, mailfrom: fm-256628-20260220191150eae201fae200020714-xrjhho@rts-flowmailer.siemens.com) Received: by mta-64-225.siemens.flowmailer.net with ESMTPSA id 20260220191150eae201fae200020714 for ; Fri, 20 Feb 2026 20:11:50 +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:References:In-Reply-To; bh=a7fNMJqZf6tHWIeTdoKj8/577JOda0kfXdIjlPa1ky0=; b=VsSFs2S/J+XO/q9b27QEwHW/Hj0ZpUXoCkKInTW3i3MkfTv+wBmvo65BvYpi1/bH6uO8Kk nWiknFKg/GS0Q0U8o8SHkRv5VVhG5NmbEN8zpws8+GZj8vPsdsPAy3jkyD9H8zf/hB/BirZl ZtHhq8u3F1ocAhUrCkQCQ9h6GVEwpSrQYkJvfxzoJu+ixlpuEGzM2IhMLWmbnjjNu3QPeGfc 9C4aNP9AHFxHBR6a6p4PDSeVBvgfRkaBm6gUTBWF0HPsEuOVxhYtog4GjfQTzc3Rk8nHbYnb u3RTeOj/H5LRs6a7hKVfzJoFAkkrG//EuzM2m/NqpoXxiubauINs2elQ==; From: Peter Marko To: openembedded-core@lists.openembedded.org Cc: peter.marko@siemens.com Subject: [OE-core][kirkstone][PATCH 4/4] avahi: patch CVE-2026-24401 Date: Fri, 20 Feb 2026 20:11:32 +0100 Message-Id: <20260220191132.19689-4-peter.marko@siemens.com> In-Reply-To: <20260220191132.19689-1-peter.marko@siemens.com> References: <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 19:12:00 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/231547 From: Ankur Tyagi Details https://nvd.nist.gov/vuln/detail/CVE-2026-24401 Signed-off-by: Ankur Tyagi Signed-off-by: Mathieu Dubois-Briand Signed-off-by: Ross Burton Signed-off-by: Richard Purdie (cherry picked from commit 183d0ee54f1c194e245a7bbf243c19b3c2acf4f5) Signed-off-by: Yoann Congal Signed-off-by: Peter Marko --- meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + .../avahi/files/CVE-2026-24401.patch | 74 +++++++++++++++++++ 2 files changed, 75 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2026-24401.patch diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb b/meta/recipes-connectivity/avahi/avahi_0.8.bb index c1d919783c1..9ef771e5a2d 100644 --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb @@ -40,6 +40,7 @@ SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV} file://CVE-2025-68276.patch \ file://CVE-2025-68468.patch \ file://CVE-2025-68471.patch \ + file://CVE-2026-24401.patch \ " UPSTREAM_CHECK_URI = "https://github.com/lathiat/avahi/releases/" diff --git a/meta/recipes-connectivity/avahi/files/CVE-2026-24401.patch b/meta/recipes-connectivity/avahi/files/CVE-2026-24401.patch new file mode 100644 index 00000000000..1a442966fc9 --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2026-24401.patch @@ -0,0 +1,74 @@ +From 5eea2640324928c15936b7a2bcbf8ea0de7b08f7 Mon Sep 17 00:00:00 2001 +From: Hugo Muis <198191869+friendlyhugo@users.noreply.github.com> +Date: Sun, 2 Mar 2025 18:06:24 +0100 +Subject: [PATCH] core: fix uncontrolled recursion bug using a simple loop + detection algorithm + +Closes https://github.com/avahi/avahi/issues/501 + +CVE: CVE-2026-24401 +Upstream-Status: Backport [https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524] +(cherry picked from commit 78eab31128479f06e30beb8c1cbf99dd921e2524) +Signed-off-by: Ankur Tyagi +--- + avahi-core/browse.c | 40 ++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 40 insertions(+) + +diff --git a/avahi-core/browse.c b/avahi-core/browse.c +index f461083..975b3e9 100644 +--- a/avahi-core/browse.c ++++ b/avahi-core/browse.c +@@ -401,6 +401,40 @@ static int lookup_go(AvahiSRBLookup *l) { + return n; + } + ++static int lookup_exists_in_path(AvahiSRBLookup* lookup, AvahiSRBLookup* from, AvahiSRBLookup* to) { ++ AvahiRList* rl; ++ if (from == to) ++ return 0; ++ for (rl = from->cname_lookups; rl; rl = rl->rlist_next) { ++ int r = lookup_exists_in_path(lookup, rl->data, to); ++ if (r == 1) { ++ /* loop detected, propagate result */ ++ return r; ++ } else if (r == 0) { ++ /* is loop detected? */ ++ return lookup == from; ++ } else { ++ /* `to` not found, continue */ ++ continue; ++ } ++ } ++ /* no path found */ ++ return -1; ++} ++ ++static int cname_would_create_loop(AvahiSRBLookup* l, AvahiSRBLookup* n) { ++ int ret; ++ if (l == n) ++ /* Loop to self */ ++ return 1; ++ ++ ret = lookup_exists_in_path(n, l->record_browser->root_lookup, l); ++ ++ /* Path to n always exists */ ++ assert(ret != -1); ++ return ret; ++} ++ + static void lookup_handle_cname(AvahiSRBLookup *l, AvahiIfIndex interface, AvahiProtocol protocol, AvahiLookupFlags flags, AvahiRecord *r) { + AvahiKey *k; + AvahiSRBLookup *n; +@@ -420,6 +454,12 @@ static void lookup_handle_cname(AvahiSRBLookup *l, AvahiIfIndex interface, Avahi + return; + } + ++ if (cname_would_create_loop(l, n)) { ++ /* CNAME loops are not allowed */ ++ lookup_unref(n); ++ return; ++ } ++ + l->cname_lookups = avahi_rlist_prepend(l->cname_lookups, lookup_ref(n)); + + lookup_go(n);