{"api_version":"1","generated_at":"2026-10-01T12:49:24+00:00","cve":"CVE-2026-90080","urls":{"html":"https://cve.report/CVE-2026-90080","api":"https://cve.report/api/cve/CVE-2026-90080.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90080","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90080"},"summary":{"title":"octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:16:57","updated_at":"2026-09-17 17:16:57"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905","name":"https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40","name":"https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c","name":"https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90080","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90080","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected efabce29015189cb5cd8066cf29eb1d754de6c3c b003d5b4e46ca5033859db601e12d36da24d0e40 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected efabce29015189cb5cd8066cf29eb1d754de6c3c 7e33c6bd049b532d2ec4916895ef07e538bed905 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected efabce29015189cb5cd8066cf29eb1d754de6c3c b09a0503c755b6609fad59a84cc7f05b6843a03c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9bd7273cf1f9c5761d696cca821d25602e8f7009 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14.9 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c","drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c","drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b003d5b4e46ca5033859db601e12d36da24d0e40","status":"affected","version":"efabce29015189cb5cd8066cf29eb1d754de6c3c","versionType":"git"},{"lessThan":"7e33c6bd049b532d2ec4916895ef07e538bed905","status":"affected","version":"efabce29015189cb5cd8066cf29eb1d754de6c3c","versionType":"git"},{"lessThan":"b09a0503c755b6609fad59a84cc7f05b6843a03c","status":"affected","version":"efabce29015189cb5cd8066cf29eb1d754de6c3c","versionType":"git"},{"status":"affected","version":"9bd7273cf1f9c5761d696cca821d25602e8f7009","versionType":"git"},{"lessThan":"6.15","status":"affected","version":"6.14.9","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c","drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c","drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:05:58.199Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40"},{"url":"https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905"},{"url":"https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c"}],"title":"octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90080","datePublished":"2026-09-17T16:05:58.199Z","dateReserved":"2026-09-11T19:38:34.785Z","dateUpdated":"2026-09-17T16:05:58.199Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:16:57","lastModifiedDate":"2026-09-17 17:16:57","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90080","Ordinal":"1","Title":"octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup","CVE":"CVE-2026-90080","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90080","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup\n\naf_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is\nallocated during PF/VF probe. Representors and other non-AF_XDP paths\nleave the pointer NULL, but several call sites used test_bit() on it\nunconditionally.\n\nSwitching to devlink eswitch mode creates representors and runs\notx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses\nwhen dereferencing the NULL bitmap. Add NULL checks before every\naf_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init\npaths.","Type":"Description","Title":"octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup"}]}}}