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Message-ID: <2025061838-CVE-2022-50196-4ce9@gregkh> Date: Wed, 18 Jun 2025 13:04:21 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2022-50196: soc: qcom: ocmem: Fix refcount leak in of_get_ocmem From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: soc: qcom: ocmem: Fix refcount leak in of_get_ocmem of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. of_node_put() will check NULL pointer. The Linux kernel CVE team has assigned CVE-2022-50196 to this issue. Affected and fixed versions =========================== Issue introduced in 5.5 with commit 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 and fixed in 5.10.137 with commit 07aea6819d569d1e172227486655e4fb5bd4cdb9 Issue introduced in 5.5 with commit 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 and fixed in 5.15.61 with commit 84a928b44cb303d5756e3bff2734921de8dce4f6 Issue introduced in 5.5 with commit 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 and fixed in 5.18.18 with commit a1e4243c0dddeafb4ace6d9906d3f5129b81a9fe Issue introduced in 5.5 with commit 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 and fixed in 5.19.2 with commit ed40a48d0a9166edb22e2b8efafea822e93dd79a Issue introduced in 5.5 with commit 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 and fixed in 6.0 with commit 92a563fcf14b3093226fb36f12e9b5cf630c5a5d 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-2022-50196 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/soc/qcom/ocmem.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/07aea6819d569d1e172227486655e4fb5bd4cdb9 https://git.kernel.org/stable/c/84a928b44cb303d5756e3bff2734921de8dce4f6 https://git.kernel.org/stable/c/a1e4243c0dddeafb4ace6d9906d3f5129b81a9fe https://git.kernel.org/stable/c/ed40a48d0a9166edb22e2b8efafea822e93dd79a https://git.kernel.org/stable/c/92a563fcf14b3093226fb36f12e9b5cf630c5a5d
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