CVE-2021-46950 - CVE House
Back to Database
Status published Unknown CVE-2021-46950

md/raid1: properly indicate failure when ending a failed write request

Vulnerability 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).

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-46950

Credits & Attribution

No credits recorded in the NVD database.

References

More from Linux

View All →
CVE-2025-71315
drm/vkms: Convert to DRM's vblank timer
Unknown 0
CVE-2025-71314
drm/panthor: Recover from panthor_gpu_flush_caches() failures
Unknown 0
CVE-2025-71313
PCI: endpoint: Add missing NULL check for alloc_workqueue()
Unknown 0
CVE-2025-71312
fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()
Unknown 0
CVE-2025-71311
fs/ntfs3: Initialize new folios before use
Unknown 0

Affected Vendor

Affected Software

Linux
Vulnerable Versions:
900c531899f5ee2321bef79e20055787bc73251d, 1cd972e0a10760a1fa27d9830d78446c891c23b6, eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad, a1f4fcb880988a96c0b2d5c3305ffc4e49eca0ed, 344242d50f468a250bf4b6136934392758412ed8, 4.14.147, 4.19.77, 5.2.19, 5.3.4, 5.4, 0, 4.14.233, 4.19.191, 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13

Timeline

Official Publish: February 27th, 2024
Last Modified: May 23rd, 2026
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.