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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-72450

xfrm: validate selector family and prefixlen during match

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 to < 87a5bbccc7ff4edb3f42fea387124237d2ba91eeaffected
  • 2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 to < bd7f202cf77556cff59f68dc30e4cdf40cb6e33baffected
  • bce1afaa212ec380bf971614f70909a27882b862 to < a3968ad4195d72c8fddcc6c0ef39da95ac98711aaffected
  • 7d9868180bd1e4cf37e7c5067362658971162366 to < efa9e3b9f3dea2e1ea4c7edf4edc863faef85986affected
  • 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 to < 78783fefdc8f36879b1a17efa0d3195ea5f2dc5faffected
  • 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 to < 6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfeaffected
  • 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 to < 5a03a2ee17e8259dde631ed84fd8322db06cb2aeaffected
  • 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 to < 40f0b1047918539f0b0f795ac65e35336b4c2c78affected
  • f31398570acf0f0804c644006f7bfa9067106b0aaffected
  • 401ad99a5ae7180dd9449eac104cb755f442e7f3affected
  • e68dd80ba498265d2266b12dc3459164f4ff0c4aaffected
  • 5.10.229 to < 5.10.261affected
  • 5.15.170 to < 5.15.212affected
  • 6.1.115 to < 6.1.178affected
  • 6.6.59 to < 6.6.145affected
  • 4.19.323 to < 4.20affected
  • 5.4.285 to < 5.5affected
  • 6.11.6 to < 6.12affected

Linux Linux

Default version status: affected

  • 6.12affected
  • 0 to < 6.12unaffected
  • 5.10.261 to ≤ 5.10.*unaffected
  • 5.15.212 to ≤ 5.15.*unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References