Answer in brief
CVE-2026-72450 records a High severity (CVSS 7.8) vulnerability in xfrm: validate selector family and prefixlen during match. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 <87a5bbccc7ff4edb3f42fea387124237d2ba91ee || >=2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 <bd7f202cf77556cff59f68dc30e4cdf40cb6e33b || >=bce1afaa212ec380bf971614f70909a27882b862 <a3968ad4195d72c8fddcc6c0ef39da95ac98711a || >=7d9868180bd1e4cf37e7c5067362658971162366 <efa9e3b9f3dea2e1ea4c7edf4edc863faef85986 || >=3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 <78783fefdc8f36879b1a17efa0d3195ea5f2dc5f || >=3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 <6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe || >=3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 <5a03a2ee17e8259dde631ed84fd8322db06cb2ae || >=3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 <40f0b1047918539f0b0f795ac65e35336b4c2c78 || f31398570acf0f0804c644006f7bfa9067106b0a || 401ad99a5ae7180dd9449eac104cb755f442e7f3 || e68dd80ba498265d2266b12dc3459164f4ff0c4a || >=5.10.229 <5.10.261 || >=5.15.170 <5.15.212 || >=6.1.115 <6.1.178 || >=6.6.59 <6.6.145 || >=4.19.323 <4.20 || >=5.4.285 <5.5 || >=6.11.6 <6.12 | 87a5bbccc7ff4edb3f42fea387124237d2ba91ee, bd7f202cf77556cff59f68dc30e4cdf40cb6e33b, a3968ad4195d72c8fddcc6c0ef39da95ac98711a, efa9e3b9f3dea2e1ea4c7edf4edc863faef85986, 78783fefdc8f36879b1a17efa0d3195ea5f2dc5f, 6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe, 5a03a2ee17e8259dde631ed84fd8322db06cb2ae, 40f0b1047918539f0b0f795ac65e35336b4c2c78, 5.10.261, 5.15.212, 6.1.178, 6.6.145, 4.20, 5.5, 6.12 |
| Linux/Linuxgeneric | 6.12 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrm_selector_match() due to AF_UNSPEC selector with large prefixlen (e.g. 128) matched against IPv4 flow (when XFRM_STATE_AF_UNSPEC is set). Fix this by: - Rejecting mismatched families in xfrm_selector_match. - Returning false in addr4_match if prefixlen > 32. - Returning false in addr_match if prefixlen > 128 (prevents overflow).
Quoted source text, attributed separately from HOL analysis.