CVE-2024-50269: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: usb: musb: sunxi: Fix accessing an released usb phy Commit 6ed05c68cbca ("usb: musb: sunxi: Explicitly release USB PHY on exit") will cause that usb phy @glue->xceiv is accessed after released. 1) register platform driver @sunxi_musb_driver // get the usb phy @glue->xceiv sunxi_musb_probe() -> devm_usb_get_phy(). 2) register and unregister platform driver @musb_driver musb_probe() -> sunxi_musb_init() use the phy here //the phy is released here musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy() 3) register @musb_driver again musb_probe() -> sunxi_musb_init() use the phy here but the phy has been released at 2). ... Fixed by reverting the commit, namely, removing devm_usb_put_phy() from sunxi_musb_exit().

Affected products

• Linux Linux Kernel: from 4.4.95, before 4.5 (fixed in 4.5); from 4.9.59, before 4.10 (fixed in 4.10); from 4.13.10, before 4.14 (fixed in 4.14); from 4.14, before 4.19.324 (fixed in 4.19.324); from 4.20, before 5.4.286 (fixed in 5.4.286); from 5.5, before 5.10.230 (fixed in 5.10.230); …

Published 2024-11-19. Last modified 2026-06-17.