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 0CC9412CDA8 for ; Fri, 24 May 2024 15:10:06 +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=1716563406; cv=none; b=IcIkUi+LvIEsLLVj8/K29psNM/2rVx7Ygxfu1Kkp7AHcT4hRzyl/6A3zff+zoQoxMmGj3uG1IuHIGGYPxa0+9XtuOZ/6m3WjfYBIga6kP9wZ8+0MzrNQk0P0PKXCkSkn+KcO4BUHbXBjRmohBrpbEvNZS+A6v4HdLm0hQ+J2YGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716563406; c=relaxed/simple; bh=HG72ffslPdUJdstMrPhUGL3vw0K+3EEL8njCo7dk5Kc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=lPpvmdSbyRw97WMFiH1TM1rbj1dsSRGZ8jNtVHlZ7KhmuwVT68CKAKklkoIs+ivHxfUwVcovlWoyuKW95uFXv7FYwAZu05BEhrPzN9YDbIcoKvYREy1OCBhryZ0nkCuglhVrRaZ41XVdLSGxvMxZiwhUoVKSJ6iy7ryREcHj9/w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TNXjbJiT; 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="TNXjbJiT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F417C2BBFC; Fri, 24 May 2024 15:10:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716563405; bh=HG72ffslPdUJdstMrPhUGL3vw0K+3EEL8njCo7dk5Kc=; h=From:To:Cc:Subject:Date:Reply-to:From; b=TNXjbJiTooAA48vQ/snd6G98JMm1sqlo1b2GdhZ7pwnXsj4UdtqRigo6UXY4RPZUB H9fuc+3IEmWuED5nVUMrTW6pkrvmbeAkNG6jtFHOvMG10ybOLuQ5tbm1Eoda7PrTTd PthzUXZA4O1QxCGFGiarh9HIFt3W2Km8ikZYAMj0= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2021-47522: HID: bigbenff: prevent null pointer dereference Date: Fri, 24 May 2024 17:09:42 +0200 Message-ID: <2024052433-CVE-2021-47522-ad59@gregkh> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=1891; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=HG72ffslPdUJdstMrPhUGL3vw0K+3EEL8njCo7dk5Kc=; b=owGbwMvMwCRo6H6F97bub03G02pJDGkBa9dG7paYenP6dMuJc058VuyYKtOYVHqjlc9MYvKn2 7MDT01w6YhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJPJrPsGBa2ZQHxgc74qYd Url6XOnFjkd7Ij0Y5pesODPDVNZ3uuyqu8UCib9Y3x5xPw8A X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: HID: bigbenff: prevent null pointer dereference When emulating the device through uhid, there is a chance we don't have output reports and so report_field is null. The Linux kernel CVE team has assigned CVE-2021-47522 to this issue. Affected and fixed versions =========================== Fixed in 5.4.165 with commit 8e0ceff632f4 Fixed in 5.10.85 with commit 6272b17001e6 Fixed in 5.15.8 with commit 58f15f5ae778 Fixed in 5.16 with commit 918aa1ef104d 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-2021-47522 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/hid/hid-bigbenff.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/8e0ceff632f48175ec7fb4706129c55ca8a7c7bd https://git.kernel.org/stable/c/6272b17001e6fdcf7b4a16206287010a1523fa6e https://git.kernel.org/stable/c/58f15f5ae7786c824868f3a7e093859b74669ce7 https://git.kernel.org/stable/c/918aa1ef104d286d16b9e7ef139a463ac7a296f0