Vulnerabilities > CVE-2021-46950 - Unspecified vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid1: properly indicate failure when ending a failed write request This patch addresses a data corruption bug in raid1 arrays using bitmaps. Without this fix, the bitmap bits for the failed I/O end up being cleared. Since we are in the failure leg of raid1_end_write_request, the request either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).
Vulnerable Configurations
References
- https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5
- https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f
- https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40
- https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382
- https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515
- https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd
- https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd