What’s Vulnerable › Vulnerabilities

CVE-2022-50431: ALSA: aoa: i2sbus: fix possible memory leak in i2sbus_add_dev()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-01 · updated 2026-06-17
• Weakness: CWE-401

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.

Affected products

• Linux kernel: from 2.6.18 before 4.9.332; from 4.10 before 4.14.298; from 4.15 before 4.19.264; from 4.20 before 5.4.223; from 5.5 before 5.10.153; from 5.11 before 5.15.77 — fixed in 4.14.298, 4.19.264, 4.9.332, 5.10.153, 5.15.77, 5.4.223

How to fix

Upgrade to a fixed version: Linux kernel 4.14.298, 4.19.264, 4.9.332, 5.10.153. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/027fee10e3a400cf6f3237374a1248da1082807b
• https://git.kernel.org/stable/c/4a4c8482e370d697738a78dcd7bf2780832cb712
• https://git.kernel.org/stable/c/5bdea674534153110b90d70b02f2fbaf48b2c0eb
• https://git.kernel.org/stable/c/802532a50acf501fdafe38a84ca2aa886d68af68
• https://git.kernel.org/stable/c/c7524279c8ddc7dbf3463bec70e0289097959944
• https://git.kernel.org/stable/c/ce6fd1c382a38b75557db85a2fe99d285540a03d
• https://git.kernel.org/stable/c/e81d7826b8f40430a1ea1b330e24d9a9eb4512c4
• https://git.kernel.org/stable/c/fd410d24665e4efb3c1796797181265efe553e9c

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