Description

In the Linux kernel, the following vulnerability has been resolved:

net/dpaa2: Avoid explicit cpumask var allocation on stack

For CONFIG_CPUMASK_OFFSTACK=y kernel, explicit allocation of cpumask
variable on stack is not recommended since it can cause potential stack
overflow.

Instead, kernel code should always use *cpumask_var API(s) to allocate
cpumask var in config-neutral way, leaving allocation strategy to
CONFIG_CPUMASK_OFFSTACK.

Use *cpumask_var API(s) to address it.

Classification

CVE ID: CVE-2024-42093

CVSS Base Severity: HIGH

CVSS Base Score: 7.8

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 10.53% (scored less or equal to compared to others)

EPSS Date: 2025-06-02 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: none

SSVC Technical Impact: partial

SSVC Automatable: false

References

https://nvd.nist.gov/vuln/detail/CVE-2024-42093
https://git.kernel.org/stable/c/b2262b3be27cee334a2fa175ae3afb53f38fb0b1
https://git.kernel.org/stable/c/763896ab62a672d728f5eb10ac90d98c607a8509
https://git.kernel.org/stable/c/a55afc0f5f20ba30970aaf7271929dc00eee5e7d
https://git.kernel.org/stable/c/48147337d7efdea6ad6e49f5b8eb894b95868ef0
https://git.kernel.org/stable/c/69f49527aea12c23b78fb3d0a421950bf44fb4e2
https://git.kernel.org/stable/c/5e4f25091e6d06e99a23f724c839a58a8776a527
https://git.kernel.org/stable/c/d33fe1714a44ff540629b149d8fab4ac6967585c

Timeline