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Message-ID: <2025040134-CVE-2025-21934-1a8d@gregkh> Date: Tue, 1 Apr 2025 16:39:58 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2025-21934: rapidio: fix an API misues when rio_add_net() fails Description =========== In the Linux kernel, the following vulnerability has been resolved: rapidio: fix an API misues when rio_add_net() fails rio_add_net() calls device_register() and fails when device_register() fails. Thus, put_device() should be used rather than kfree(). Add "mport->net = NULL;" to avoid a use after free issue. The Linux kernel CVE team has assigned CVE-2025-21934 to this issue. Affected and fixed versions =========================== Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 5.4.291 with commit d4ec862ce80f64db923a1d942b5d11cf6fc87d36 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 5.10.235 with commit 88ddad53e4cfb6de861c6d4fb7b25427f46baed5 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 5.15.179 with commit cdd9f58f7fe41a55fae4305ea51fc234769fd466 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 6.1.131 with commit a5f5e520e8fbc6294020ff8afa36f684d92c6e6a Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 6.6.83 with commit 2537f01d57f08c527e40bbb5862aa6ff43344898 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 6.12.19 with commit 22e4977141dfc6d109bf29b495bf2187b4250990 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 6.13.7 with commit f0aa4ee1cbbf7789907e5a3f6810de01c146c211 Issue introduced in 4.6 with commit e8de370188d098bb49483c287b44925957c3c9b6 and fixed in 6.14 with commit b2ef51c74b0171fde7eb69b6152d3d2f743ef269 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-2025-21934 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/rapidio/devices/rio_mport_cdev.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/d4ec862ce80f64db923a1d942b5d11cf6fc87d36 https://git.kernel.org/stable/c/88ddad53e4cfb6de861c6d4fb7b25427f46baed5 https://git.kernel.org/stable/c/cdd9f58f7fe41a55fae4305ea51fc234769fd466 https://git.kernel.org/stable/c/a5f5e520e8fbc6294020ff8afa36f684d92c6e6a https://git.kernel.org/stable/c/2537f01d57f08c527e40bbb5862aa6ff43344898 https://git.kernel.org/stable/c/22e4977141dfc6d109bf29b495bf2187b4250990 https://git.kernel.org/stable/c/f0aa4ee1cbbf7789907e5a3f6810de01c146c211 https://git.kernel.org/stable/c/b2ef51c74b0171fde7eb69b6152d3d2f743ef269
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