Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.
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Fixes

Solution

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Workaround

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History

Thu, 15 Jan 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Gnu
Gnu glibc
Vendors & Products Gnu
Gnu glibc

Wed, 14 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Description Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.
Title Integer overflow in memalign leads to heap corruption
Weaknesses CWE-190
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: glibc

Published:

Updated: 2026-01-14T21:25:55.741Z

Reserved: 2026-01-12T14:35:11.285Z

Link: CVE-2026-0861

cve-icon Vulnrichment

Updated: 2026-01-14T21:25:28.506Z

cve-icon NVD

Status : Received

Published: 2026-01-14T21:15:52.617

Modified: 2026-01-14T22:15:53.233

Link: CVE-2026-0861

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-15T08:03:18Z

Weaknesses