From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93ECA48EBE0 for ; Fri, 25 Sep 2026 10:26:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790331982; cv=none; b=ikJIom3Ltn8rM7w6MTGN6v36w8nBy9P0H7kuvVDn7Ya9AY4xm/3v/EzdMPxuGdVWTiqgmtWvmGazFppy/IucxED6bD4HZXktK5Fmwlpoa/dygMdjLwmXPFB4YfePbPVa0gfgdqYgM/o9ACDBjWsrl6P8t4McEpPH8qLCgl4N+sg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790331982; c=relaxed/simple; bh=eOOb8C5cTze1xDt9mX5jhE5VG0N+e7xANfBxK+6bt5Q=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Cn0TmuYiN+kSubKhNyB47cphK3kYCZVrgclnwjCTBqP08KNDIa376HpibY/b2wMCUuNVZsPjmEkNTKhb4MneQZHKQenQgAzl/U1Kc7+jDSs1SGCpUEX4iW31GqqOyOwssMLKBOgGleLrjxb+uHX6k5s60+BIipeWNQ6GuuiYC4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=s593MLOM; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="s593MLOM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC9941F000FF; Fri, 25 Sep 2026 10:26:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790331981; bh=+zqdN0enaqcYzewoJ5cdO1AzQqi+nuGEgw3zpOsDZmY=; h=From:To:Cc:Subject:Date:Reply-To; b=s593MLOMMV5PlsSeXqTB0ZFd7k6jOAcV4S15OvFkMTMZO5obddQ3LjqZohnumP5QT 2btZCEhMltSqszCpqXORZhwF5hxNBKj25wPvxzvLosK1yoI/rxF6NBP//vCTtfLRNB jo37wkA496NttJ3Zc3+Hmhu6qfH5g7yKcMBix5To= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-97600: ieee802154: cc2520: fix FIFOP work use-after-free Date: Fri, 25 Sep 2026 12:23:00 +0200 Message-ID: <2026092500-CVE-2026-97600-3585@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2818; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=T67q6V5AFHhRRPeoY2yPPozWkBaRKlM1jXn+ayaHX/E=; b=owGbwMvMwCRo6H6F97bub03G02pJDFnbvD3iIm6bc6xjOZs44wjD/vBNsdpvE48d3l2YtEzpl QI7n09QRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEwkfRnDPFWjy3NUeGTWiE2x vjDlz6ql8zVnX2NYcMol0yDG9rOJN8/hFc/ilX3iVznbAwA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: ieee802154: cc2520: fix FIFOP work use-after-free The FIFOP interrupt handler queues cc2520_fifop_irqwork. On removal, cc2520_remove() only flushes the work. The devm-managed FIFOP IRQ remains active until after ->remove() returns and can queue the work again after that flush, allowing it to run after the private data is released. Disable the work with disable_work_sync() instead of flushing it, so the handler can no longer queue it once removal begins. Destroy the buffer mutex last, since the worker and the stop callback invoked through ieee802154_unregister_hw() both take it. Found by an in-house static analysis tool. The Linux kernel CVE team has assigned CVE-2026-97600 to this issue. Affected and fixed versions =========================== Issue introduced in 3.17 with commit 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 and fixed in 6.12.111 with commit 56a9919d8494fb118eebf167bef0622528fbf2e7 Issue introduced in 3.17 with commit 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 and fixed in 6.18.53 with commit c68fd52c73b676aee67020011e98fea125a978f4 Issue introduced in 3.17 with commit 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 and fixed in 7.2.7 with commit 890a80d516a1447db5c21bf92841a82914ea897d Issue introduced in 3.17 with commit 0da6bc8cc3417a5e452efb886ff2c61e72b743d6 and fixed in 7.3-rc3 with commit ff5891b266a7fc6a062710836be84f1cc19338b5 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-97600 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/net/ieee802154/cc2520.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/56a9919d8494fb118eebf167bef0622528fbf2e7 https://git.kernel.org/stable/c/c68fd52c73b676aee67020011e98fea125a978f4 https://git.kernel.org/stable/c/890a80d516a1447db5c21bf92841a82914ea897d https://git.kernel.org/stable/c/ff5891b266a7fc6a062710836be84f1cc19338b5