Bug 2425134 (CVE-2023-54083)

Summary: CVE-2023-54083 kernel: phy: tegra: xusb: Clear the driver reference in usb-phy dev
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-12-24 14:05:24 UTC 
In the Linux kernel, the following vulnerability has been resolved:

phy: tegra: xusb: Clear the driver reference in usb-phy dev

For the dual-role port, it will assign the phy dev to usb-phy dev and
use the port dev driver as the dev driver of usb-phy.

When we try to destroy the port dev, it will destroy its dev driver
as well. But we did not remove the reference from usb-phy dev. This
might cause the use-after-free issue in KASAN.
Comment 1 Alexander B 2025-12-24 23:57:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122404-CVE-2023-54083-fc0e@gregkh/T