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 F183F14372D for ; Tue, 21 May 2024 15:06:42 +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=1716304003; cv=none; b=b80895+vY9Ph3VoyZar8+FTAFZtCGm2Uda3fbrwQR6Pzu9RDte+lIN+zgehZerm/z5yRrFvfDrJXMrv+ES4sxlwQVh47tNbfiXF7n2H2ESfRn4d+/BJr4rvmbAYLIuw1Lm5BCvggzEOIuu3mRG20/QmL8e/LaraQW4Wq3vU/UO4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716304003; c=relaxed/simple; bh=EGARLOx0jumT2PLS9wYv2yYNzZcF2LpACYhR5Y4edAo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=al6JLJGm81cty+bVnFg8FPVSrF+xjT+by4rSnly8tWwwF/5SXEjGSsGOgKxeOmBpWPS+isIGRSYK2GB/fiv0TDLZklBIQFQdEt9ByGYNYTgZTbqy3AP9Jp8L6fUV2dYtzrBpj49RDp5ibOjS2yT4KDugsD4Y/qcNlX2p7iEQhKI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UTKW5cWc; 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="UTKW5cWc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79F41C2BD11; Tue, 21 May 2024 15:06:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716304002; bh=EGARLOx0jumT2PLS9wYv2yYNzZcF2LpACYhR5Y4edAo=; h=From:To:Cc:Subject:Date:Reply-to:From; b=UTKW5cWcdXb8DrmPegmG4oJvXlgltYTMxager5RvUdTinsZGzgQfIWUMkxZNsaIb7 nvDOZLnoSN5cUiqe3I6a5HDEyrMnVHnWJPLseJyyNwTdS4QojtB43bsnY25LGgzyUh 4FGBWCi4hy6TQXJgaWHX2LJ5mJwpXmP3VK8pXGG8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2021-47415: iwlwifi: mvm: Fix possible NULL dereference Date: Tue, 21 May 2024 17:04:32 +0200 Message-ID: <2024052153-CVE-2021-47415-4e3d@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=1759; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=EGARLOx0jumT2PLS9wYv2yYNzZcF2LpACYhR5Y4edAo=; b=owGbwMvMwCRo6H6F97bub03G02pJDGk+2296VrfImymlPzhSExJUujbwVlDY48wVq19vrHi0d InVw06jjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjIPnmGeZpfQwumTApTVirZ +u3npyVhbB+uqzEsWCn+bx7vhL/phfMEpI7M/Bta+23WIwA= 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: iwlwifi: mvm: Fix possible NULL dereference In __iwl_mvm_remove_time_event() check that 'te_data->vif' is NULL before dereferencing it. The Linux kernel CVE team has assigned CVE-2021-47415 to this issue. Affected and fixed versions =========================== Issue introduced in 5.14 with commit 7b3954a1d69a and fixed in 5.14.12 with commit 432d8185e9ff Issue introduced in 5.14 with commit 7b3954a1d69a and fixed in 5.15 with commit 24d5f16e407b 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-2021-47415 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/wireless/intel/iwlwifi/mvm/time-event.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/432d8185e9ffce97e3866ca71c39b0807a456920 https://git.kernel.org/stable/c/24d5f16e407b75bc59d5419b957a9cab423b2681