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 D026337F75E for ; Sat, 15 Aug 2026 06:30:38 +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=1786775439; cv=none; b=p6IgWmuWFgOpqLnboO4/xZtJZSBXkwq5oYpbpL95Kuqpc3yVaSeSv6MAmtecwX88IkFSv+n0f3qFvkKL+HMpHSnQOc735vNUzbd53db62qaI2FOsgH0YLUSMm+EHKkSyM1frHudtr/kqeoNixE6VehbbOhtzQjmaKnBBbEUsyUs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775439; c=relaxed/simple; bh=nAIYijqjnEHbLqO8zx/vQz2ipwgyZ0No7bzSAdUxUKU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fE77PCJ6c83TDmoMYFNFJt9iHOqk9IyXCt9jdXwgTiEBR46zNOL5MmVJ02scQQsMOtnPRoieJGADO9uSr1hydJ+ZJokMSzfkAIWqmcPehoDF2QuR8BtJFjIrr4XXRct0LS59mVh7XtnkKp7ps3v1PgtC2QESafoXgWRhotx4gew= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=EcMV7936; 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="EcMV7936" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CAAD1F000E9; Sat, 15 Aug 2026 06:30:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786775438; bh=0LEojyVMkWQRi696aRTijJYMiteWF1iZ2QgSrysAc5g=; h=From:To:Cc:Subject:Date:Reply-To; b=EcMV7936AZazCvBNw7CE7XGXCB7YFLgQdQaReYqKBQEhSRur0i+h0LgEVm70gpBwx ydZp07Q7PVsiI61iAOQJJTR9uP25cY3jQ/WuX5uKZDNaSckEntQ7tBp8f2vLTjRYqF PBKQnTuOiQp+4o2b0ropiQv3EUzvCkIiXZYVQF2E= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72458: apparmor: fix NULL pointer dereference in unpack_pdb Date: Sat, 15 Aug 2026 15:08:57 +0900 Message-ID: <2026081532-CVE-2026-72458-37dd@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=2080; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=mXETNOTWsCtDJaflEQNrLjEsggE2eHeYCwtE7Pr1Zu0=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDD8kMytXbPpreM7hTE1u3pwHj5/UHjh6/VORSk9Kn cfEeX/3dsSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEog8wzK+cu7T5QF+nGbt6 kzGz6L9bu81fRDLMM82aMvV0rsUf7pXi0r0/ol7Ov8TnBwA= 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: apparmor: fix NULL pointer dereference in unpack_pdb pdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer dereference. The Linux kernel CVE team has assigned CVE-2026-72458 to this issue. Affected and fixed versions =========================== Issue introduced in 6.17 with commit 2e12c5f060176ede209673e4f63ea5d0e3c5814c and fixed in 6.18.40 with commit fbfdb5a94a48797bea232791e24c38f3aa3063c8 Issue introduced in 6.17 with commit 2e12c5f060176ede209673e4f63ea5d0e3c5814c and fixed in 7.1.5 with commit 73d86ca950b80cd39ca948e2c518d135bf2308c8 Issue introduced in 6.17 with commit 2e12c5f060176ede209673e4f63ea5d0e3c5814c and fixed in 7.2-rc1 with commit 7681ca43d2b1c776e62fe77e3167835fb1ab8319 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-2026-72458 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: security/apparmor/policy_unpack.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/fbfdb5a94a48797bea232791e24c38f3aa3063c8 https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8 https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319