{"api_version":"1","generated_at":"2026-10-02T22:47:53+00:00","cve":"CVE-2026-97613","urls":{"html":"https://cve.report/CVE-2026-97613","api":"https://cve.report/api/cve/CVE-2026-97613.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-97613","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-97613"},"summary":{"title":"net: mana: Reserve extra CQ slot for the fence completion CQE","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Reserve extra CQ slot for the fence completion CQE\n\nThe RX completion queue is sized to hold exactly one CQE per posted RX WQE.\nMANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after\nthe packet CQEs. The current sizing reserves no extra slot for it and in\nrare cases, CQ has no guaranteed slot for the fence CQE when it is full of\npacket CQEs. This can lead to dropping the fence completion while the\ndriver waits holding RTNL lock throughout the timeout duration.\nReserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory()\nrequires queue_size to be a power-of-two and at least MANA_PAGE_SIZE;\nthe reservation pushes cq_size past a power-of-two, so round up the CQ size\nin mana_create_rxq().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:15","updated_at":"2026-09-25 11:17:15"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/80dd7e754b3aa9637a0758ad93fa209f9650ec48","name":"https://git.kernel.org/stable/c/80dd7e754b3aa9637a0758ad93fa209f9650ec48","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1e43c407624d2111c19d4d8ffe9b2191a0ec42de","name":"https://git.kernel.org/stable/c/1e43c407624d2111c19d4d8ffe9b2191a0ec42de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/62eb52454afcc1d390b8624c5d1ddc92cf382f39","name":"https://git.kernel.org/stable/c/62eb52454afcc1d390b8624c5d1ddc92cf382f39","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6c739cb89ebd6cf225dac46d2721e11927a7ead4","name":"https://git.kernel.org/stable/c/6c739cb89ebd6cf225dac46d2721e11927a7ead4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97613","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97613","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 62eb52454afcc1d390b8624c5d1ddc92cf382f39 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 1e43c407624d2111c19d4d8ffe9b2191a0ec42de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 6c739cb89ebd6cf225dac46d2721e11927a7ead4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 80dd7e754b3aa9637a0758ad93fa209f9650ec48 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"97613","cve":"CVE-2026-97613","epss":"0.002000000","percentile":"0.088180000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/mana_en.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"62eb52454afcc1d390b8624c5d1ddc92cf382f39","status":"affected","version":"6cc74443a7732d7e93bee3d0c3704a22cc7274d9","versionType":"git"},{"lessThan":"1e43c407624d2111c19d4d8ffe9b2191a0ec42de","status":"affected","version":"6cc74443a7732d7e93bee3d0c3704a22cc7274d9","versionType":"git"},{"lessThan":"6c739cb89ebd6cf225dac46d2721e11927a7ead4","status":"affected","version":"6cc74443a7732d7e93bee3d0c3704a22cc7274d9","versionType":"git"},{"lessThan":"80dd7e754b3aa9637a0758ad93fa209f9650ec48","status":"affected","version":"6cc74443a7732d7e93bee3d0c3704a22cc7274d9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/mana_en.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"5.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc3","versionStartIncluding":"5.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Reserve extra CQ slot for the fence completion CQE\n\nThe RX completion queue is sized to hold exactly one CQE per posted RX WQE.\nMANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after\nthe packet CQEs. The current sizing reserves no extra slot for it and in\nrare cases, CQ has no guaranteed slot for the fence CQE when it is full of\npacket CQEs. This can lead to dropping the fence completion while the\ndriver waits holding RTNL lock throughout the timeout duration.\nReserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory()\nrequires queue_size to be a power-of-two and at least MANA_PAGE_SIZE;\nthe reservation pushes cq_size past a power-of-two, so round up the CQ size\nin mana_create_rxq()."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:22:22.026Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/62eb52454afcc1d390b8624c5d1ddc92cf382f39"},{"url":"https://git.kernel.org/stable/c/1e43c407624d2111c19d4d8ffe9b2191a0ec42de"},{"url":"https://git.kernel.org/stable/c/6c739cb89ebd6cf225dac46d2721e11927a7ead4"},{"url":"https://git.kernel.org/stable/c/80dd7e754b3aa9637a0758ad93fa209f9650ec48"}],"title":"net: mana: Reserve extra CQ slot for the fence completion CQE","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-97613","datePublished":"2026-09-25T10:22:22.026Z","dateReserved":"2026-09-24T16:01:01.158Z","dateUpdated":"2026-09-25T10:22:22.026Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:15","lastModifiedDate":"2026-09-25 11:17:15","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"97613","Ordinal":"1","Title":"net: mana: Reserve extra CQ slot for the fence completion CQE","CVE":"CVE-2026-97613","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"97613","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Reserve extra CQ slot for the fence completion CQE\n\nThe RX completion queue is sized to hold exactly one CQE per posted RX WQE.\nMANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after\nthe packet CQEs. The current sizing reserves no extra slot for it and in\nrare cases, CQ has no guaranteed slot for the fence CQE when it is full of\npacket CQEs. This can lead to dropping the fence completion while the\ndriver waits holding RTNL lock throughout the timeout duration.\nReserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory()\nrequires queue_size to be a power-of-two and at least MANA_PAGE_SIZE;\nthe reservation pushes cq_size past a power-of-two, so round up the CQ size\nin mana_create_rxq().","Type":"Description","Title":"net: mana: Reserve extra CQ slot for the fence completion CQE"}]}}}