From patchwork Fri Feb 6 10:56:42 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ankur Tyagi X-Patchwork-Id: 80566 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 10E8AEE208F for ; Fri, 6 Feb 2026 10:57:12 +0000 (UTC) Received: from mail-pg1-f175.google.com (mail-pg1-f175.google.com [209.85.215.175]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.8841.1770375424223063752 for ; Fri, 06 Feb 2026 02:57:04 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20230601 header.b=Tjf+iU1x; spf=pass (domain: gmail.com, ip: 209.85.215.175, mailfrom: ankur.tyagi85@gmail.com) Received: by mail-pg1-f175.google.com with SMTP id 41be03b00d2f7-c54f700b5b1so375510a12.0 for ; Fri, 06 Feb 2026 02:57:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1770375423; x=1770980223; darn=lists.openembedded.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=KT3scYQ3EaMxvZ04IWacINzRfC97WqGBOwRnQdUDD1g=; b=Tjf+iU1xDHzWbB0kcIut+BFVwKsi6tZQxWdQsv0eNlWRs3fifM3Cfs6REW6vRUATGd LSA+QjHcDgbo9/n6FwPOOid/WRChBwaFhvSYFcaVvStEiHW6Eqd0O5hQ/qKAYV3rg7/i qUcLCYO6Ib2HlDiO96Z+ieLPQ7IUlVzR47m69n5zGiuWk8n4PlayEJ3W+pnw1kNOGCMR dEXBy0A3rTp6tR7Bz+9hhJWo9g9CUYbMOLwNpfTaLg3djCCsVxHdTd3JOoT2p2Nn4Qdv fXuIUHAKXXmKa8Nxa23Bi8toVmoVqIoYKCEs/DvRaVrzH9klDWFi7uP/YLVtMypJRprP PSaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770375423; x=1770980223; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=KT3scYQ3EaMxvZ04IWacINzRfC97WqGBOwRnQdUDD1g=; b=GE5r0lV4Sz9bopFcMI3OxwwXRC4sAMiJWt5CJDeSg/py6AfKq/JTJNlbgpSYJxttB2 ZYmgkHeRUkoJge5mwlvkq/t3J1bauA4R4sw+GpS/d8S6I9ZH8E+G7LfjME8nBNzs5GCT u6hWD1hR/Fk8Ffg5C3BIln3StABAKsGwQ2kzCofOZe4ePUDVWvqd40RVwMULBj2Loh5a qEFqHDjTrnK0nPj2K5LTjUnKqnVKwFV4I8ugrhR9ePL3Itmm+A59T0oqr8MgPUpvU/SC JhxIeWSTv3DfGqcygtYgnnzvfM/n+wEw5UQXNd4g280sJ3GUsIdNvlNuEbcHk4aI60qh m5Sw== X-Gm-Message-State: AOJu0YzNClmxXObTHs8jxDNVF3JsJHgcr2GZ3LrSj28VdBIIgIbuaKRN dFgJw7qwV7diyGmiO3yX8L+Kcb0wZ2CpssrG4Ax5/HQqxXULZpCx7iCer0XlAw== X-Gm-Gg: AZuq6aLZ+d3teIxRuW+DdO7PSKiGAbRUzzMik0i73dfMM8He842+HZbKrOT+/VpRDOS ifAOEzmTaW2ApxUqE1K4HPcgjTGU7OihEizSnJveuxcAbfSDfrYslpM/6Jw9hFTyVHSioVg3sP6 xvs0OYqUVvtFixBxfRBUp/holz3YHWB1/qMdP4B+Uk8rgB7q24Z6KTNE7mP/rUhgJbYtN5HDAb3 km1H2Rd1CxBZNEyFrrj2D5z2NdJEnUSvg29jrDGOYqaK4mp7RyXpF96ASRX4763waV9iy0affL1 fBsCr3yDFG3/mCT8phbR9VVnTIM2icZv5H+pifmNU7zOk7z0iTKclyspG0/g6f2uJattsXKNdH2 RgYXElxE46wQAoj7fq03zpkqqaNF4aojMA3AF/Cyw2WCZx62+pbaGOLV/aAyPLQQgqObURb+m6+ Alo6+r5+sm9KoKM45hCCZICJM= X-Received: by 2002:a05:6a21:3990:b0:366:5bda:1ea6 with SMTP id adf61e73a8af0-393acf8c027mr2313049637.11.1770375423261; Fri, 06 Feb 2026 02:57:03 -0800 (PST) Received: from NVAPF55DW0D-IPD.. ([147.161.217.33]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c6dcb526676sm1779496a12.12.2026.02.06.02.57.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Feb 2026 02:57:02 -0800 (PST) From: ankur.tyagi85@gmail.com To: openembedded-core@lists.openembedded.org Cc: Ankur Tyagi Subject: [OE-core][whinlatter][PATCH 2/3] avahi: patch CVE-2026-24401 Date: Fri, 6 Feb 2026 23:56:42 +1300 Message-ID: <20260206105643.2636897-2-ankur.tyagi85@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260206105643.2636897-1-ankur.tyagi85@gmail.com> References: <20260206105643.2636897-1-ankur.tyagi85@gmail.com> MIME-Version: 1.0 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, 06 Feb 2026 10:57:12 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/230611 From: Ankur Tyagi Details https://nvd.nist.gov/vuln/detail/CVE-2026-24401 Signed-off-by: Ankur Tyagi --- 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 bd61c39dbf..35f779c914 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 = "${GITHUB_BASE_URI}/download/v${PV}/avahi-${PV}.tar.gz \ file://CVE-2024-52616.patch \ file://CVE-2024-52615.patch \ file://CVE-2025-68276.patch \ + file://CVE-2026-24401.patch \ " GITHUB_BASE_URI = "https://github.com/avahi/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 0000000000..1a442966fc --- /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);