CVE-2024-26618 - CVE House
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Status published Unknown CVE-2024-26618

arm64/sme: Always exit sme_alloc() early with existing storage

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: arm64/sme: Always exit sme_alloc() early with existing storage When sme_alloc() is called with existing storage and we are not flushing we will always allocate new storage, both leaking the existing storage and corrupting the state. Fix this by separating the checks for flushing and for existing storage as we do for SVE. Callers that reallocate (eg, due to changing the vector length) should call sme_free() themselves.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

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

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
21614ba60883eb93b99a7ee4b41cb927f93b39ae, 5d0a8d2fba50e9c07cde4aad7fba28c008b07a5b, e01af8e26c23a08625a3dd6c8c472a1752d76cce, 6.1.47, 6.4.12, 6.5, 0, 6.1.140, 6.6.15, 6.7.3, 6.8

Timeline

Official Publish: February 29th, 2024
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.