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Message-ID: <2025100158-CVE-2022-50431-b165@gregkh> Date: Wed, 1 Oct 2025 13:42:04 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2022-50431: ALSA: aoa: i2sbus: fix possible memory leak in i2sbus_add_dev() From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: ALSA: aoa: i2sbus: fix possible memory leak in i2sbus_add_dev() dev_set_name() in soundbus_add_one() allocates memory for name, it need be freed when of_device_register() fails, call soundbus_dev_put() to give up the reference that hold in device_initialize(), so that it can be freed in kobject_cleanup() when the refcount hit to 0. And other resources are also freed in i2sbus_release_dev(), so it can return 0 directly. The Linux kernel CVE team has assigned CVE-2022-50431 to this issue. Affected and fixed versions =========================== Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 4.9.332 with commit fd410d24665e4efb3c1796797181265efe553e9c Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 4.14.298 with commit 802532a50acf501fdafe38a84ca2aa886d68af68 Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 4.19.264 with commit 027fee10e3a400cf6f3237374a1248da1082807b Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 5.4.223 with commit 5bdea674534153110b90d70b02f2fbaf48b2c0eb Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 5.10.153 with commit ce6fd1c382a38b75557db85a2fe99d285540a03d Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 5.15.77 with commit e81d7826b8f40430a1ea1b330e24d9a9eb4512c4 Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 6.0.7 with commit c7524279c8ddc7dbf3463bec70e0289097959944 Issue introduced in 2.6.18 with commit f3d9478b2ce468c3115b02ecae7e975990697f15 and fixed in 6.1 with commit 4a4c8482e370d697738a78dcd7bf2780832cb712 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-2022-50431 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: sound/aoa/soundbus/i2sbus/core.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/fd410d24665e4efb3c1796797181265efe553e9c https://git.kernel.org/stable/c/802532a50acf501fdafe38a84ca2aa886d68af68 https://git.kernel.org/stable/c/027fee10e3a400cf6f3237374a1248da1082807b https://git.kernel.org/stable/c/5bdea674534153110b90d70b02f2fbaf48b2c0eb https://git.kernel.org/stable/c/ce6fd1c382a38b75557db85a2fe99d285540a03d https://git.kernel.org/stable/c/e81d7826b8f40430a1ea1b330e24d9a9eb4512c4 https://git.kernel.org/stable/c/c7524279c8ddc7dbf3463bec70e0289097959944 https://git.kernel.org/stable/c/4a4c8482e370d697738a78dcd7bf2780832cb712
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