CVE-2026-53031
bpf: Validate node_id in arena_alloc_pages()
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Validate node_id in arena_alloc_pages() arena_alloc_pages() accepts a plain int node_id and forwards it through the entire allocation chain without any bounds checking. Validate node_id before passing it down the allocation chain in arena_alloc_pages().
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 15, 2026, 2:37 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Ensure node_id is validated in arena_alloc_pages().
- Apply the patch to the Linux kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53031.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53031 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53031
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53031 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53031 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jul. 15, 2026
Action Type Old Value New Value Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.9 up to (excluding) 6.12.91 Added Reference Type kernel.org: https://git.kernel.org/stable/c/2845989f2ebaf7848e4eccf9a779daf3156ea0a5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/31d3b4b28e55835646d6829d60023f730dd34e85 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e15900888c09480a4c632bc598f1c5bd39bed6d6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fb66e20130f95a93ffea1677252526a9e39170b2 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '317460317a02a1af512697e6e964298dedd8a163', 'lessThan': '31d3b4b28e55835646d6829d60023f730dd34e85', 'versionType': 'git'}, {'status': 'affected', 'version': '317460317a02a1af512697e6e964298dedd8a163', 'lessThan': 'e15900888c09480a4c632bc598f1c5bd39bed6d6', 'versionType': 'git'}, {'status': 'affected', 'version': '317460317a02a1af512697e6e964298dedd8a163', 'lessThan': 'fb66e20130f95a93ffea1677252526a9e39170b2', 'versionType': 'git'}, {'status': 'affected', 'version': '317460317a02a1af512697e6e964298dedd8a163', 'lessThan': '2845989f2ebaf7848e4eccf9a779daf3156ea0a5', 'versionType': 'git'}], 'programFiles': ['kernel/bpf/arena.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/bpf/arena.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: bpf: Validate node_id in arena_alloc_pages() arena_alloc_pages() accepts a plain int node_id and forwards it through the entire allocation chain without any bounds checking. Validate node_id before passing it down the allocation chain in arena_alloc_pages(). Added Reference https://git.kernel.org/stable/c/2845989f2ebaf7848e4eccf9a779daf3156ea0a5 Added Reference https://git.kernel.org/stable/c/31d3b4b28e55835646d6829d60023f730dd34e85 Added Reference https://git.kernel.org/stable/c/e15900888c09480a4c632bc598f1c5bd39bed6d6 Added Reference https://git.kernel.org/stable/c/fb66e20130f95a93ffea1677252526a9e39170b2