[SECURITY] usb: gspca/xirlink_cit: fix invalid descriptor handling (CVE-2020-11668)#122
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Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
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[SECURITY] usb: gspca/xirlink_cit: fix invalid descriptor handling (CVE-2020-11668)#122Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
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Fix CVE-2020-11668.
Upstream commit: a246b4d547708f33ff4d4b9a7a5dbac741dc89d8
The Xirlink USB camera driver (gspca/xirlink_cit) in the Linux kernel did not correctly
handle invalid USB descriptors, which could be triggered by crafted requests from a
local user, potentially leading to a denial-of-service (kernel crash).
This patch adds proper validation of descriptor data in the driver to prevent misuse.
Reference: CVE-2020-11668