PT-2024-34096
CVE-2024-50269
·
تاريخ النشر
2024-11-05
·
تاريخ التحديث
2026-10-18
الوصف من
CVSS 3.1
7.8
عاليةالمقاييسAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue concerns accessing a released USB PHY in the Linux kernel. Specifically, it involves the
sunxi musb driver and the musb driver. The problem arises when the musb driver is registered and unregistered, causing the USB PHY to be released, but then accessed again after its release. This is due to a commit that explicitly releases the USB PHY on exit. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited.Technical details about exploitation include:
- The
sunxi musb probe()function callsdevm usb get phy()to get the USB PHY. - The
musb probe()function callssunxi musb init()which uses the PHY. - The
musb remove()function callssunxi musb exit()which releases the PHY usingdevm usb put phy(). - When the
musb driveris registered again,musb probe()is called, which attempts to use the already released PHY.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
قابلية الاستغلال
استغلال
التأثيرات
الباحثون
المورّدون
المنتجات المتأثرة
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