{"id":"CVE-2026-90080","revision":"ba8565645f664bf4a57b63ee1814a585","records":[{"revision":"ba8565645f664bf4a57b63ee1814a585","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90080","aliases":[],"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":0,"publishedAt":"2026-09-17T16:05:58.199+00:00","modifiedAt":"2026-10-19T08:57:36.84+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c\",\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c\",\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"efabce29015189cb5cd8066cf29eb1d754de6c3c\",\n                            \"lessThan\": \"b003d5b4e46ca5033859db601e12d36da24d0e40\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"efabce29015189cb5cd8066cf29eb1d754de6c3c\",\n                            \"lessThan\": \"7e33c6bd049b532d2ec4916895ef07e538bed905\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"efabce29015189cb5cd8066cf29eb1d754de6c3c\",\n                            \"lessThan\": \"b09a0503c755b6609fad59a84cc7f05b6843a03c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9bd7273cf1f9c5761d696cca821d25602e8f7009\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.14.9\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c\",\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c\",\n                        \"drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b003d5b4e46ca5033859db601e12d36da24d0e40","https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905","https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90080","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90080","identifiers":["CVE-2026-90080"]},"retained":false,"historicalAffected":[]}],"coverage":[]}