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Message-ID: <2025061806-CVE-2022-50108-088c@gregkh> Date: Wed, 18 Jun 2025 13:02:53 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2022-50108: mfd: max77620: Fix refcount leak in max77620_initialise_fps From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: mfd: max77620: Fix refcount leak in max77620_initialise_fps of_get_child_by_name() 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. The Linux kernel CVE team has assigned CVE-2022-50108 to this issue. Affected and fixed versions =========================== Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 5.4.211 with commit b948ff8a9e9ad46d4dff9127777caa14c8c2b53c Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 5.10.137 with commit afdbadbf18c19779d7bc5df70d872924f9bbd76b Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 5.15.61 with commit facd31bbc799f4d0cd25d9d688af7ca41e7f38ee Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 5.18.18 with commit 50d5fe8cb94c319cb4316f4d824570c075565354 Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 5.19.2 with commit a29c40814039535b950149311986a5f348b5db14 Issue introduced in 4.7 with commit 327156c593600e0f08575621c2a56f311d482e7a and fixed in 6.0 with commit 1520669c8255bd637c6b248b2be910e2688d38dd 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-2022-50108 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/mfd/max77620.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/b948ff8a9e9ad46d4dff9127777caa14c8c2b53c https://git.kernel.org/stable/c/afdbadbf18c19779d7bc5df70d872924f9bbd76b https://git.kernel.org/stable/c/facd31bbc799f4d0cd25d9d688af7ca41e7f38ee https://git.kernel.org/stable/c/50d5fe8cb94c319cb4316f4d824570c075565354 https://git.kernel.org/stable/c/a29c40814039535b950149311986a5f348b5db14 https://git.kernel.org/stable/c/1520669c8255bd637c6b248b2be910e2688d38dd
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