Oracle Linux: CVE-2024-42089: ELSA-2024-12610: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl-asoc-card: set priv->pdev before using it priv->pdev pointer was set after being used in fsl_asoc_card_audmux_init(). Move this assignment at the start of the probe function, so sub-functions can correctly use pdev through priv. fsl_asoc_card_audmux_init() dereferences priv->pdev to get access to the dev struct, used with dev_err macros. As priv is zero-initialised, there would be a NULL pointer dereference. Note that if priv->dev is dereferenced before assignment but never used, for example if there is no error to be printed, the driver won't crash probably due to compiler optimisations. A flaw was found in the `fsl-asoc-card` driver in the Linux kernel. This issue was fixed by ensuring the `priv->pdev` pointer is initialized before use. Previously, `priv->pdev` was used in the `fsl_asoc_card_audmux_init()` function before being assigned, potentially leading to a NULL pointer dereference and subsequent crashes.
Solution(s)
- oracle-linux-upgrade-kernel-uek
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