CVE-2023-53003 Information

Description

In the Linux kernel the following vulnerability has been resolved:

EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info’s pvt_info

The memory for llcc_driv_data is allocated by the LLCC driver. But when it is passed as the private driver info to the EDAC core it will get freed during the qcom_edac driver release. So when the qcom_edac driver gets probed again it will try to use the freed data leading to the use-after-free bug.

Hence do not pass llcc_driv_data as pvt_info but rather reference it using the platform_data pointer in the qcom_edac driver.

Reference

https://git.kernel.org/stable/c/66e10d5f399629ef7877304d9ba2b35d0474e7eb https://git.kernel.org/stable/c/6f0351d0c311951b8b3064db91e61841e85b2b96 https://git.kernel.org/stable/c/76d9ebb7f0bc10fbc78b6d576751552edf743968 https://git.kernel.org/stable/c/977c6ba624f24ae20cf0faee871257a39348d4a9 https://git.kernel.org/stable/c/bff5243bd32661cf9ce66f6d9210fc8f89bda145