From patchwork Wed Aug 12 07:28:38 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Junjie Cao X-Patchwork-Id: 94985 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 D6BC6C5B567 for ; Wed, 12 Aug 2026 05:31:50 +0000 (UTC) Received: from out-184.mta0.migadu.com (out-184.mta0.migadu.com [91.218.175.184]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.1489.1786512702501115657 for ; Tue, 11 Aug 2026 22:31:42 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="dkim: body hash did not verify" header.i=@linux.dev header.s=key1 header.b=bWHi30eg; spf=pass (domain: linux.dev, ip: 91.218.175.184, mailfrom: junjie.cao@linux.dev) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1786512700; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=veoR9S/qyMeG68COmJgvTTE8pNstaGApfTEA+b/9o4A=; b=bWHi30egpJ7GhkXHk05FIZKsA6Aar8od47Y7jGm9wFKSvEKOIapxTiCvdcezPHyH5H6626 s8dpfpZ/adkMSggDc0CkHK0zP1g0H6+2er3ZcxroL/XygSygJWRgba7E9fzWPMXjtIHQih y1syj6kqEmoNaCr9dkLPexYHpNv9a+8= From: Junjie Cao To: openembedded-core@lists.openembedded.org Cc: paul@pbarker.dev Subject: [OE-core][PATCH v3 5/9] cve-exclusions: set status for CVE-2022-1247 Date: Wed, 12 Aug 2026 02:28:38 -0500 Message-ID: <20260812072842.1176341-6-junjie.cao@linux.dev> In-Reply-To: <20260812072842.1176341-1-junjie.cao@linux.dev> References: <20260812072842.1176341-1-junjie.cao@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT 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 ; Wed, 12 Aug 2026 05:31:50 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/243230 The CVE describes a race between rose_connect() and the code that frees a rose_neigh once its count and use fields reach zero. net/rose, and rose_connect() with it, was removed entirely in v7.1: https://git.kernel.org/linus/dd8d4bc28ad7252610d8e79c1313a2d1e3499a51 ("net: remove ax25 and amateur radio (hamradio) subsystem", v7.1) The linux-yocto kernel on master is 6.18, which still carries net/rose. There the race is closed by Takamitsu Iwai's August 2025 refcount conversion, which converts the 'use' field to refcount_t and removes the unlocked rose->neighbour->use++ in rose_connect() that the CVE describes: https://git.kernel.org/linus/d860d1faa6b2ce3becfdb8b0c2b048ad31800061 ("net: rose: convert 'use' field to refcount_t", v6.17) https://git.kernel.org/linus/da9c9c877597170b929a6121a68dcd3dd9a80f45 ("net: rose: include node references in rose_neigh refcount", v6.17) Both are in v6.17 and were backported to 6.1.y, 6.6.y, 6.12.y and 6.16.y in the 2025-09-02 stable round. Upstream assigned these two commits their own identifiers, CVE-2025-39826 and CVE-2025-39827 (both fixed in v6.17-rc4), so the identification does not rest on this reading of the diff alone. The Red Hat record for CVE-2022-1247 still shows it open and lists no fix. CC: Paul Barker AI-Generated: Uses Claude (claude-opus-5) Signed-off-by: Junjie Cao --- v3: - lead with the v7.1 removal of net/rose per review; keep the v6.17 commits, which are what covers the 6.18 kernel on master - cite the upstream CVE-2025-39826 / CVE-2025-39827 assignments for the two fixing commits instead of relying on the diff match alone v2: https://lore.kernel.org/openembedded-core/20260803084827.1348810-1-junjie.cao@linux.dev/ meta/recipes-kernel/linux/cve-exclusion.inc | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/meta/recipes-kernel/linux/cve-exclusion.inc b/meta/recipes-kernel/linux/cve-exclusion.inc index be74672..b08eaa1 100644 --- a/meta/recipes-kernel/linux/cve-exclusion.inc +++ b/meta/recipes-kernel/linux/cve-exclusion.inc @@ -221,3 +221,11 @@ exploitation requires a relative kernel.core_pattern" # https://bugzilla.redhat.com/show_bug.cgi?id=2044575 CVE_STATUS[CVE-2022-0400] = "disputed: the reported net/smc out-of-bounds read \ was never substantiated and was closed as not-a-bug by Red Hat, SUSE and Debian" + +# net/rose and rose_connect() were removed entirely in v7.1 (dd8d4bc28ad7). +# The 6.18 kernel on master still carries net/rose; there the race is +# closed by the v6.17 refcount conversion, which upstream tracks as +# CVE-2025-39826 / CVE-2025-39827. +# Fix https://git.kernel.org/linus/d860d1faa6b2ce3becfdb8b0c2b048ad31800061 +# Fix https://git.kernel.org/linus/da9c9c877597170b929a6121a68dcd3dd9a80f45 +CVE_STATUS[CVE-2022-1247] = "fixed-version: Fixed from version 6.17"