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Message-ID: <2024052120-CVE-2023-52870-9af4@gregkh> Date: Tue, 21 May 2024 17:32:46 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2023-52870: clk: mediatek: clk-mt6765: Add check for mtk_alloc_clk_data Description =========== In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: clk-mt6765: Add check for mtk_alloc_clk_data Add the check for the return value of mtk_alloc_clk_data() in order to avoid NULL pointer dereference. The Linux kernel CVE team has assigned CVE-2023-52870 to this issue. Affected and fixed versions =========================== Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 5.10.201 with commit 2617aa8ceaf3 Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 5.15.139 with commit 533ca5153ad6 Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 6.1.63 with commit dd1f30d68fa9 Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 6.5.12 with commit 10cc81124407 Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 6.6.2 with commit b5ff3e89b4e7 Issue introduced in 5.8 with commit 1aca9939bf72 and fixed in 6.7 with commit b82681042724 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-2023-52870 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/clk/mediatek/clk-mt6765.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/2617aa8ceaf30e41d3eb7f5fef3445542bef193a https://git.kernel.org/stable/c/533ca5153ad6c7b7d47ae0114b14d0333964b946 https://git.kernel.org/stable/c/dd1f30d68fa98eb672c0a259297b761656a9025f https://git.kernel.org/stable/c/10cc81124407d862f0f747db4baa9c006510b480 https://git.kernel.org/stable/c/b5ff3e89b4e7f46ad2aa0de7e08d18e6f87d71bc https://git.kernel.org/stable/c/b82681042724924ae3ba0f2f2eeec217fa31e830
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