{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39973","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.149Z","datePublished":"2025-10-15T07:55:55.590Z","dateUpdated":"2026-05-11T21:40:00.452Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:40:00.452Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: add validation for ring_len param\n\nThe `ring_len` parameter provided by the virtual function (VF)\nis assigned directly to the hardware memory context (HMC) without\nany validation.\n\nTo address this, introduce an upper boundary check for both Tx and Rx\nqueue lengths. The maximum number of descriptors supported by the\nhardware is 8k-32.\nAdditionally, enforce alignment constraints: Tx rings must be a multiple\nof 8, and Rx rings must be a multiple of 32."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"],"versions":[{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"0543d40d6513cdf1c7882811086e59a6455dfe97","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"d3b0d3f8d11fa957171fbb186e53998361a88d4e","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"c0c83f4cd074b75cecef107bfc349be7d516c9c4","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"05fe81fb9db20464fa532a3835dc8300d68a2f84","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"afec12adab55d10708179a64d95d650741e60fe0","status":"affected","versionType":"git"},{"version":"5c3c48ac6bf56367c4e89f6453cd2d61e50375bd","lessThan":"55d225670def06b01af2e7a5e0446fbe946289e8","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"],"versions":[{"version":"3.12","status":"affected"},{"version":"0","lessThan":"3.12","status":"unaffected","versionType":"semver"},{"version":"5.4.300","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.245","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.194","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.155","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.109","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.50","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.16.10","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.4.300"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.10.245"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.15.194"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.1.155"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.6.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.12.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.16.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0543d40d6513cdf1c7882811086e59a6455dfe97"},{"url":"https://git.kernel.org/stable/c/7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9"},{"url":"https://git.kernel.org/stable/c/45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985"},{"url":"https://git.kernel.org/stable/c/d3b0d3f8d11fa957171fbb186e53998361a88d4e"},{"url":"https://git.kernel.org/stable/c/c0c83f4cd074b75cecef107bfc349be7d516c9c4"},{"url":"https://git.kernel.org/stable/c/05fe81fb9db20464fa532a3835dc8300d68a2f84"},{"url":"https://git.kernel.org/stable/c/afec12adab55d10708179a64d95d650741e60fe0"},{"url":"https://git.kernel.org/stable/c/55d225670def06b01af2e7a5e0446fbe946289e8"}],"title":"i40e: add validation for ring_len param","x_generator":{"engine":"bippy-1.2.0"}}}}