CVE-2026-72450
xfrm: validate selector family and prefixlen during match
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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).
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
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
Linux / Linux
6.12
References
git.kernel.org: https://git.kernel.org/stable/c/87a5bbccc7ff4edb3f42fea387124237d2ba91ee git.kernel.org: https://git.kernel.org/stable/c/bd7f202cf77556cff59f68dc30e4cdf40cb6e33b git.kernel.org: https://git.kernel.org/stable/c/a3968ad4195d72c8fddcc6c0ef39da95ac98711a git.kernel.org: https://git.kernel.org/stable/c/efa9e3b9f3dea2e1ea4c7edf4edc863faef85986 git.kernel.org: https://git.kernel.org/stable/c/78783fefdc8f36879b1a17efa0d3195ea5f2dc5f git.kernel.org: https://git.kernel.org/stable/c/6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe git.kernel.org: https://git.kernel.org/stable/c/5a03a2ee17e8259dde631ed84fd8322db06cb2ae git.kernel.org: https://git.kernel.org/stable/c/40f0b1047918539f0b0f795ac65e35336b4c2c78