Oracle Linux: CVE-2024-42089: ELSA-2024-12610: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-42089: ELSA-2024-12610: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/29/2024

Created

10/24/2024

Added

10/16/2024

Modified

01/23/2025

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

References

• https://attackerkb.com/topics/cve-2024-42089
• CVE - 2024-42089
• ELSA-2024-12610
• ELSA-2024-12618
• ELSA-2024-12779
• ELSA-2024-12612