CVE-2026-45953

MediumCVSS 5.5/10Last modified Nov 6, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

md/raid5: fix IO hang with degraded array with llbitmap

When llbitmap bit state is still unwritten, any new write should force rcw, as bitmap_ops->blocks_synced() is checked in handle_stripe_dirtying(). However, later the same check is missing in need_this_block(), causing stripe to deadloop during handling because handle_stripe() will decide to go to handle_stripe_fill(), meanwhile need_this_block() always return 0 and nothing is handled.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 5ab829f1971dc99f2aac10846c378e67fc875abc, < 870b9f15867b0e70f3459ef3974b043e8b229690; >= 5ab829f1971dc99f2aac10846c378e67fc875abc, < 28ef299e7a5b81817f8ca8297c2ddff28f5da5e8; >= 5ab829f1971dc99f2aac10846c378e67fc875abc, < cd1635d844d26471c56c0a432abdee12fc9ad735
LinuxLinux6.18

References

Timeline

Published
May 27, 2026
Last modified
Nov 6, 2026
NVD status
Analyzed

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CVE-2026-45953: Medium severity, CVSS 5.5 | Vulnix