Linux · Linux Kernel · CVE-2021-46950
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
The issue is related to a data corruption bug in raid1 arrays using bitmaps. Without the fix, the bitmap bits for the failed I/O end up being cleared. The request either needs to be retried (R1BIO WriteError) or failed (R1BIO Degraded) in the failure leg of the `raid1 end write request` function. This bug can potentially impact the confidentiality, integrity, and availability of protected information.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.