In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASK_OFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIG_CPUMASK_OFFSTACK is enabled, cpumask_var_t is a pointer. Consequently, sizeof(new_mask) evaluates to the pointer size, causing copy_from_user() to clobber the mask pointer. Furthermore, the old logic performed copy_from_user() before allocating the mask. Fix this by allocating new_mask first. To handle variable-sized user masks correctly, use cpumask_size() to truncate overly large user masks or pad undersized masks with zeros before copying the data directly into the allocated buffer.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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References
Link Providers
https://git.kernel.org/stable/c/15ba8053fe4162c933855f1676fb321cdb6251c7 cve-icon cve-icon
https://git.kernel.org/stable/c/1caee6e084a96ada94658f261ced377d85af3f03 cve-icon cve-icon
https://git.kernel.org/stable/c/3446ffb5d03c36f9ce88ede7ca5be319a2968d96 cve-icon cve-icon
https://git.kernel.org/stable/c/87a56c1e8e36d06ebe8640432f911538ded7827d cve-icon cve-icon
https://git.kernel.org/stable/c/98e37db4a34d3af3fb2f4648295c25b5e40b20e3 cve-icon cve-icon
https://git.kernel.org/stable/c/a1dd41d00c57efb1fbc6f361c5f48c9d00cca51c cve-icon cve-icon
https://git.kernel.org/stable/c/d20ee42f8226607b5693b2bc2f115ca2d270221a cve-icon cve-icon
History

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASK_OFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIG_CPUMASK_OFFSTACK is enabled, cpumask_var_t is a pointer. Consequently, sizeof(new_mask) evaluates to the pointer size, causing copy_from_user() to clobber the mask pointer. Furthermore, the old logic performed copy_from_user() before allocating the mask. Fix this by allocating new_mask first. To handle variable-sized user masks correctly, use cpumask_size() to truncate overly large user masks or pad undersized masks with zeros before copying the data directly into the allocated buffer.
Title mips: sched: Fix CPUMASK_OFFSTACK memory corruption
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-15T05:53:44.453Z

Reserved: 2026-08-09T03:40:39.910Z

Link: CVE-2026-72181

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:21:36.393

Modified: 2026-08-15T06:21:36.393

Link: CVE-2026-72181

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.