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NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-64k-debug-devel-matched  (opens in a new tab)

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EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRT64KDEBUGDEVELMATCHED-14774908
  • published31 Dec 2025
  • disclosed30 Dec 2025
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Introduced: 30 Dec 2025

CVE-2023-54299  (opens in a new tab)
CWE-476  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k-debug-devel-matched package and not the kernel-rt-64k-debug-devel-matched package as distributed by RHEL.

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: bus: verify partner exists in typec_altmode_attention

Some usb hubs will negotiate DisplayPort Alt mode with the device but will then negotiate a data role swap after entering the alt mode. The data role swap causes the device to unregister all alt modes, however the usb hub will still send Attention messages even after failing to reregister the Alt Mode. type_altmode_attention currently does not verify whether or not a device's altmode partner exists, which results in a NULL pointer error when dereferencing the typec_altmode and typec_altmode_ops belonging to the altmode partner.

Verify the presence of a device's altmode partner before sending the Attention message to the Alt Mode driver.