CVEvulnerability

CVE-2021-46950

7.8 HIGH Published 2024-02-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-02-27
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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).

Affected configurations

• linux linux kernel (>= 4.14.147 < 4.14.233) • linux linux kernel (>= 4.19.77 < 4.19.191) • linux linux kernel (>= 5.2.19 < 5.3) • linux linux kernel (>= 5.3.4 < 5.4.118) • linux linux kernel (>= 5.5 < 5.10.36) • linux linux kernel (>= 5.11 < 5.11.20) • linux linux kernel (>= 5.12 < 5.12.3)

References