CVE-2026-53216
net: mvpp2: limit XDP frame size to the RX buffer
Description
In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: limit XDP frame size to the RX buffer mvpp2 has short and long BM pools, and short pool buffers can be smaller than PAGE_SIZE. The XDP path nevertheless initializes every xdp_buff with PAGE_SIZE as frame size. XDP helpers use frame_sz to validate tail growth and to derive the hard end of the data area. Advertising PAGE_SIZE for short buffers can let bpf_xdp_adjust_tail() grow a packet past the real allocation, corrupting memory or later tripping skb tailroom checks. Initialize the XDP buffer with bm_pool->frag_size so XDP tailroom matches the actual buffer backing the packet.
INFO
Published Date :
June 25, 2026, 9:16 a.m.
Last Modified :
July 2, 2026, 8:52 p.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Initialize XDP buffer with actual fragment size.
- Ensure XDP tailroom matches buffer size.
- Apply kernel patch for net: mvpp2.
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-2026-53216.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53216 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-2026-53216
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-2026-53216 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53216 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. 02, 2026
Action Type Old Value New Value Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.9 up to (excluding) 5.15.210 Added Reference Type kernel.org: https://git.kernel.org/stable/c/3b8b0c3631b19faee53f0d15a49924129b063eec Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/910617a4e67dbdd5fdb39d9dc6a51e491e1b2c3e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9545cc5ef18ca22d031f2f47c157192460652359 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/994bd2b58d2bd08aa97ec0836cc813cfcb00d749 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3ee9231ccec6ec3be2de89c56f897055fd9eab1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ec8e1e5842bc0dbd4c272761f4db3651eecd0339 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f3c6aa078927e6fe8121c9c591ddee8716c5305a Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 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': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': 'a3ee9231ccec6ec3be2de89c56f897055fd9eab1', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': 'ec8e1e5842bc0dbd4c272761f4db3651eecd0339', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': '3b8b0c3631b19faee53f0d15a49924129b063eec', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': '994bd2b58d2bd08aa97ec0836cc813cfcb00d749', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': '910617a4e67dbdd5fdb39d9dc6a51e491e1b2c3e', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': '9545cc5ef18ca22d031f2f47c157192460652359', 'versionType': 'git'}, {'status': 'affected', 'version': '07dd0a7aae7f72af7cec18909581c2bb570edddc', 'lessThan': 'f3c6aa078927e6fe8121c9c591ddee8716c5305a', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: limit XDP frame size to the RX buffer mvpp2 has short and long BM pools, and short pool buffers can be smaller than PAGE_SIZE. The XDP path nevertheless initializes every xdp_buff with PAGE_SIZE as frame size. XDP helpers use frame_sz to validate tail growth and to derive the hard end of the data area. Advertising PAGE_SIZE for short buffers can let bpf_xdp_adjust_tail() grow a packet past the real allocation, corrupting memory or later tripping skb tailroom checks. Initialize the XDP buffer with bm_pool->frag_size so XDP tailroom matches the actual buffer backing the packet. Added Reference https://git.kernel.org/stable/c/3b8b0c3631b19faee53f0d15a49924129b063eec Added Reference https://git.kernel.org/stable/c/910617a4e67dbdd5fdb39d9dc6a51e491e1b2c3e Added Reference https://git.kernel.org/stable/c/9545cc5ef18ca22d031f2f47c157192460652359 Added Reference https://git.kernel.org/stable/c/994bd2b58d2bd08aa97ec0836cc813cfcb00d749 Added Reference https://git.kernel.org/stable/c/a3ee9231ccec6ec3be2de89c56f897055fd9eab1 Added Reference https://git.kernel.org/stable/c/ec8e1e5842bc0dbd4c272761f4db3651eecd0339 Added Reference https://git.kernel.org/stable/c/f3c6aa078927e6fe8121c9c591ddee8716c5305a