CVE-2024-41077

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

null_blk: fix validation of block size

Block size should be between 512 and PAGE_SIZE and be a power of 2. The current check does not validate this, so update the check.

Without this patch, null_blk would Oops due to a null pointer deref when loaded with bs=1536 [1].

[axboe: remove unnecessary braces and != 0 check]

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.