From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 74D942727F3 for ; Thu, 4 Dec 2025 14:51:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764859875; cv=none; b=ZRKVxOTaudMTOyjYEVMxk2J+hfYz7OTDvMGICw42KsFRHHYM8v8NafJ+xUVVUccbX/vxa515CTM6L7/jt1gHuEbRaqEo0hQfn+KalRkiyTvRFXBXBMyKn1cp2miJGiuds8c419h2ycOtokVX17tdw53AsGQltRBP/NZ82FWbWNU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764859875; c=relaxed/simple; bh=x6Yzfw3CgC+iyCuiHXIVYJuTCnkpS5OQ3mdJHIdLCmM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=eubfqDZYkEJCT4e21hiH8Ca1sAdXsoAJFtTiaRUu11cGUFmqmc1mOxz2sRL7tDiZ7KF2oqHxtoK3BkDuOwxMq90/PedL+WcslXzVIdMeHIEKlZiNrM0xNgl7KWbwb3mNQPCNUIDK/YZFCe2ZaZUiraovYaMvrm5qXRtiIcrtXaU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1+XLMZwo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="1+XLMZwo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BEE9C116B1; Thu, 4 Dec 2025 14:51:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1764859875; bh=x6Yzfw3CgC+iyCuiHXIVYJuTCnkpS5OQ3mdJHIdLCmM=; h=From:To:Cc:Subject:Date:Reply-To:From; b=1+XLMZwojsN1FkZIbVR1EViNMc4CxJgAl5F14U2SCZjjzlwDGlAIHf9ou/7f26pp+ 9W1PbKAZ/PhqHTP5vEgIfqFALlRyOQeOZl1VDmPh9Gh2gi/jAZnSTPdvQyrC3X9B7P tIwIq4Q5Bl1mRB3kVWN7BAk1HoUbKlHp5ppI0wg4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2025-40221: media: pci: mg4b: fix uninitialized iio scan data Date: Thu, 4 Dec 2025 15:50:55 +0100 Message-ID: <2025120454-CVE-2025-40221-e3f3@gregkh> X-Mailer: git-send-email 2.52.0 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=2116; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=lUNKu3VuiIHC4VvTgXJva15kIC5GQy3xUjoCZxbKp2w=; b=owGbwMvMwCRo6H6F97bub03G02pJDJmG88/PnHeoMymruHLfVkbXbtPTVyy3vWtbxCHTpLdi0 xpX551+HbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCR32oM8/S2tOzi89masmZ5 +30WJXFjYbnTRxkWNCr2uvw78m+Hb8Mzp9Qvuw27rVv3AQA= 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: media: pci: mg4b: fix uninitialized iio scan data Fix potential leak of uninitialized stack data to userspace by ensuring that the `scan` structure is zeroed before use. The Linux kernel CVE team has assigned CVE-2025-40221 to this issue. Affected and fixed versions =========================== Issue introduced in 6.7 with commit 0ab13674a9bd10514486cf1670d71dbd8afec421 and fixed in 6.12.54 with commit b7f82da7f86479cb6479a76ebe213ece7c77398f Issue introduced in 6.7 with commit 0ab13674a9bd10514486cf1670d71dbd8afec421 and fixed in 6.17.4 with commit b792eba44494b4e6ab5006013335f9819f303b8b Issue introduced in 6.7 with commit 0ab13674a9bd10514486cf1670d71dbd8afec421 and fixed in 6.18 with commit c0d3f6969bb4d72476cfe7ea9263831f1c283704 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-2025-40221 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/media/pci/mgb4/mgb4_trigger.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/b7f82da7f86479cb6479a76ebe213ece7c77398f https://git.kernel.org/stable/c/b792eba44494b4e6ab5006013335f9819f303b8b https://git.kernel.org/stable/c/c0d3f6969bb4d72476cfe7ea9263831f1c283704