CVE-2022-50469

Summary

In the Linux kernel, the following vulnerability has been resolved:

staging: rtl8723bs: fix potential memory leak in rtw_init_drv_sw()

In rtw_init_drv_sw(), there are various init functions are called to populate the padapter structure and some checks for their return value. However, except for the first one error path, the other five error paths do not properly release the previous allocated resources, which leads to various memory leaks.

This patch fixes them and keeps the success and error separate. Note that these changes keep the form of rtw_init_drv_sw() in "drivers/staging/r8188eu/os_dep/os_intfs.c". As there is no proper device to test with, no runtime testing was performed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < b4573a2bad3c3e2643ef3939079eb7035a30e6eeaffected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 6b2052b365f8035ab7f09ac24b5b499002b298cbaffected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < d95d1526d9f06978c1a7186810a5490d72c62742affected
LinuxLinux554c0a3abf216c991c5ebddcdb2c08689ecd290b < 5a5aa9cce621e2c0e25a1e5d72d6be1749167cc0affected
LinuxLinux4.12affected
LinuxLinux0 < 4.12unaffected
LinuxLinux5.15.75 <= 5.15.*unaffected
LinuxLinux5.19.17 <= 5.19.*unaffected
LinuxLinux6.0.3 <= 6.0.*unaffected
LinuxLinux6.1 <= *unaffected

Weaknesses

References