CVE-2021-46950

high

Description

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).

References

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

https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5

Details

Source: Mitre, NVD

Published: 2024-02-27

Updated: 2024-08-22

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High