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 BD93D4EBACC for ; Wed, 16 Sep 2026 10:44:00 +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=1789555458; cv=none; b=Y6P6gsVykf+8F6ibnOywvGUkorZl1w58J23sKamspmdymRC9Yu3Wm2xlIhqaoS+vkQ8533c3ZuHrsDk7S8HD1ZObz4ZWYaZw9HDIXx/5FCw4jeyASCwnns7TD+SwLwT+123gfX6A4dziKwdFrhO5JJtXdJ7dTOccmI3F/RNSPVY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789555458; c=relaxed/simple; bh=eyuzE8c+vB9vnZx8RSE9SJkOXtoJW0I8O80P40tVVtw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=SpK7v4FKV9a4M89assK2nw5+ZmthjXmp2hU4hGUere1kd8NPe4GyKhCQQiX69bLX3BSuapoYAixrsZ5EghO5mHheyzKjwOBUELy5NjO5xaibf/4OMtoc2PtquwZ5BSRkXM+0U0S5XrV5eFwPe0TVuTwVvh5EWS4slW8bYnGUllA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JYlMtuDk; 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="JYlMtuDk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 607FB1F0089A; Wed, 16 Sep 2026 10:43:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789555438; bh=3srCzlldDmbu3uhHGGMN24yKxQBhAk1eOMrv5H5LxFk=; h=From:To:Cc:Subject:Date:Reply-To; b=JYlMtuDkqbp4wDxSt4KA6p8IgtiXEn7shq4vQF3Pu88iFZQFtnZ4cFJ78B11/rI16 oWshDiuVLvalcqIuWMEyov2jMVW8AhOakyjyeJxKrQxtizSZo103bqm3Dq4pd2XTXw hv8u5BCerqS+yu2u5MjEJb+OYlklwg7ZBXDt9dWA= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-90014: tracing: Have show_event_filters/triggers files take trace array ref Date: Wed, 16 Sep 2026 11:32:24 +0100 Message-ID: <2026091602-CVE-2026-90014-015d@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=2449; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=/2MfWwx/PJXmG3y5n8Yadom5sBSntSOcz7JKLjRpmtM=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmr8lfdWFBvEXadgSXmQPn2BJH4Oxar/soIH7zTe6tw5 eUYvzlHO2JZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAiu1wZ5jvN7P/rWXrr7fI1 j39uFlvjeayF1ZdhQWf2ufDZrV0Cmuyr/jkzRDbdn9ATAQA= 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: tracing: Have show_event_filters/triggers files take trace array ref The newly added files show_event_filters and show_event_triggers that show all filters or triggers that are set within the trace array do not take a reference for the trace array it is showing. Without taking a reference, the trace_array may be freed via "rmdir" while a task is reading one of theses files. Those files iterate all the events within an instance (trace_array) and nothing prevents that instance from being freed while its data is being read. This causes a use-after-free crash. Have the open of both those files take the trace_array reference via the trace_array_get() that prevents the trace_array from being freed while the files are opened. The Linux kernel CVE team has assigned CVE-2026-90014 to this issue. Affected and fixed versions =========================== Issue introduced in 7.0 with commit 729757b96a662d87e334fe8b837707800d8fd551 and fixed in 7.2.5 with commit 2ee3f7d43f79efaca0cd84a6798653d9d75ce60b Issue introduced in 7.0 with commit 729757b96a662d87e334fe8b837707800d8fd551 and fixed in 7.3-rc2 with commit f4a771cc684c7354b6200147f7252c58d17408ff 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-2026-90014 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: kernel/trace/trace_events.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/2ee3f7d43f79efaca0cd84a6798653d9d75ce60b https://git.kernel.org/stable/c/f4a771cc684c7354b6200147f7252c58d17408ff