CVE-2023-53269 block: ublk: make sure that block size is set correctly

In the Linux kernel, the following vulnerability has been resolved: block: ublk: make sure that block size is set correctly block size is one very key setting for block layer, and bad block size could panic kernel easily. Make sure that block size is set correctly. Meantime if ublkvalidateparams...

CVE-2023-53269

CVE-2023-53269 is a Linux kernel vulnerability affecting the block layer in the ublk path. The issue centers on ensuring the block size is set correctly; an incorrect size could cause a kernel panic. The documented fix enforces proper block size handling and, when ublk_validate_params() fails, cl...