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In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASK_OFFSTACK memory corruption This patch addresses a… (CVE-2026-72181)

0
Unknown
Published: 08/15/2026 (08/15/2026, 06:32:15 UTC)
Source: GCVE Database

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.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-792p-r5w2-5gfr
Osv Schema Version
1.4.0
Aliases
["CVE-2026-72181"]
Ecosystems
[]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a808b74bf8831d5394fee39

Added to database: 08/15/2026, 15:53:24 UTC

Last updated: 08/15/2026, 15:54:50 UTC

Views: 1

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