CVE-2024-50269
Description
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().
How to fix
- linux linux_kernel4.5, 4.10, 4.14, 4.19.324, 5.4.286, 5.10.230, 5.15.172, 6.1.117, 6.6.61, 6.11.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.4.95 ≤ v < 4.5, 4.9.59 ≤ v < 4.10, 4.13.10 ≤ v < 4.14, 4.14 ≤ v < 4.19.324, 4.20 ≤ v < 5.4.286, 5.5 ≤ v < 5.10.230, 5.11 ≤ v < 5.15.172, 5.16 ≤ v < 6.1.117, 6.2 ≤ v < 6.6.61, 6.7 ≤ v < 6.11.8, 6.12 | 4.5, 4.10, 4.14, 4.19.324, 5.4.286, 5.10.230, 5.15.172, 6.1.117, 6.6.61, 6.11.8 |
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