CVE-2021-47066 async_xor: increase src_offs when dropping destination page

In the Linux kernel, the following vulnerability has been resolved: asyncxor: increase srcoffs when dropping destination page Now we support sharing one page if PAGESIZE is not equal stripe size. To support this, it needs to support calculating xor value with different offsets for each r5dev. One...

PT-2021-8013 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the async xor function in the Linux kernel, which can cause data corruption problems due to incorrect calculation of xor values when sharing one page if PAGE SI...