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Message-ID: <2025091558-CVE-2023-53191-7baa@gregkh> Date: Mon, 15 Sep 2025 16:02:45 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2023-53191: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains of_irq_find_parent() returns a node pointer with refcount incremented, We should use of_node_put() on it when not needed anymore. Add missing of_node_put() to avoid refcount leak. The Linux kernel CVE team has assigned CVE-2023-53191 to this issue. Affected and fixed versions =========================== Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 4.14.308 with commit eef04516f0c317ce80502c1d6b0d06235a87cd8f Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 4.19.276 with commit eef09f786df4b34b97557929287c4e5a83bbf09b Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 5.4.235 with commit 9e79ac4f70fd51243e1c6108d4b0baf16cfde99c Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 5.10.173 with commit c9aaf4efe1f02b2fef21a69fb3652f5ad12a5710 Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 5.15.99 with commit d6c66c46889752fa4962c6388516f7ab66a8d6a1 Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 6.1.16 with commit 65e30bd1310d90b794c377bf405394157854aa30 Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 6.2.3 with commit 5fbf2cc39b62a4afe44f3d42ee3dcf8f012c1926 Issue introduced in 4.6 with commit e6b78f2c3e14a9e3a909be3e6ec305d9f1cbabbd and fixed in 6.3 with commit 071d068b89e95d1b078aa6bbcb9d0961b77d6aa1 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-2023-53191 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/irqchip/irq-alpine-msi.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/eef04516f0c317ce80502c1d6b0d06235a87cd8f https://git.kernel.org/stable/c/eef09f786df4b34b97557929287c4e5a83bbf09b https://git.kernel.org/stable/c/9e79ac4f70fd51243e1c6108d4b0baf16cfde99c https://git.kernel.org/stable/c/c9aaf4efe1f02b2fef21a69fb3652f5ad12a5710 https://git.kernel.org/stable/c/d6c66c46889752fa4962c6388516f7ab66a8d6a1 https://git.kernel.org/stable/c/65e30bd1310d90b794c377bf405394157854aa30 https://git.kernel.org/stable/c/5fbf2cc39b62a4afe44f3d42ee3dcf8f012c1926 https://git.kernel.org/stable/c/071d068b89e95d1b078aa6bbcb9d0961b77d6aa1
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