Description

In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix memory leak on ulpi_register() error paths Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") removed kfree(ulpi) from ulpi_register_interface() to fix a double-free when device_register() fails. But when ulpi_of_register() or ulpi_read_id() fail before device_register() is called, the ulpi allocation is leaked. Add kfree(ulpi) on both error paths to properly clean up the allocation.

References 8

• git.kernel.org https://git.kernel.org/stable/c/0b9fcab1b8608d429e5f239afb197de928d4de7d
• git.kernel.org https://git.kernel.org/stable/c/0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c
• git.kernel.org https://git.kernel.org/stable/c/2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d
• git.kernel.org https://git.kernel.org/stable/c/7bd61ed0bf9f4f1f2673d489b3bda1555b48d054
• git.kernel.org https://git.kernel.org/stable/c/b0c0d44adb55c66663886cb6e30ee92cbb0f5385
• git.kernel.org https://git.kernel.org/stable/c/be2c1d825f54277472c87019e82013ac534ddc4c
• git.kernel.org https://git.kernel.org/stable/c/f1b855c00988a9cb41134cab7cf9faedba775dd9
• git.kernel.org https://git.kernel.org/stable/c/f30ccfc2985590b33a23a3d8bed7ca16c0af551b

Remediation