CVE-2026-53216: linux
Vulnerability summary
CVE-2026-53216 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 39 · Related 39Timeline
- 25-06-2026PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.50% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu156 products
- linux< 5.15.0-194.204 | < 6.8.0-142.142 | All versions (No fix recorded) | < 7.0.0-29.29
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1116.123 | < 6.8.0-1065.68 | All versions (No fix recorded) | < 7.0.0-1010.10
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Chainguard13 products
- linux-aws-6.12< 6.12.95-r0
- linux-aws-6.18< 6.18.38-r0
- linux-azure-6.12< 6.12.95-r0
- linux-azure-6.18< 6.18.38-r0
- linux-gcp-6.12< 6.12.95-r0
Linux2 products
- linux≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < a3ee9231ccec6ec3be2de89c56f897055fd9eab1 | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < ec8e1e5842bc0dbd4c272761f4db3651eecd0339 | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < 3b8b0c3631b19faee53f0d15a49924129b063eec | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < 994bd2b58d2bd08aa97ec0836cc813cfcb00d749 | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < 910617a4e67dbdd5fdb39d9dc6a51e491e1b2c3e | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < 9545cc5ef18ca22d031f2f47c157192460652359 | ≥ 07dd0a7aae7f72af7cec18909581c2bb570edddc, < f3c6aa078927e6fe8121c9c591ddee8716c5305a | 5.9
- linux_kernel≥ 5.9, < 5.15.210 | ≥ 5.16, < 6.1.176 | ≥ 6.2, < 6.6.143 | ≥ 6.7, < 6.12.94 | ≥ 6.13, < 6.18.36 | ≥ 6.19, < 7.0.13 | 7.1:rc1 | 7.1:rc2 | 7.1:rc3 | 7.1:rc4 | 7.1:rc5 | 7.1:rc6 | 7.1:rc7
Debian1 product
- linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.13-1
4 vendors · 172 products
