UBUNTU-CVE-2026-89577: Medium severity ubuntu/linux-hwe-edge vulnerability
In the Linux kernel, the following vulnerability has been resolved: dm-io: report non-retryable errors separatedly The error codes BLKSTSNOTSUPP and BLKSTSINVAL should not cause leg failure on dm-raid1. This patch changes the interface to dm-io, so that it reports two error bitmaps - errorbits and unsupbits. The unsupbit bitmap tracks BLKSTSNOTSUPP or BLKSTSINVAL errors, the errorbits bitmap tracks all the other errors. dm-raid1 is changed so that it won't fail a leg if it receives an error in the unsupbits bitmap. This patch (with 62dc37a819a5) fixes misbehavior if the user uses unaligned bio vectors on dm-raid1.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Patch 62dc37a819a5