{"schema":"threatline.record/2","record":{"id":"CVE-2026-98724","aliases":[],"summary":"nvmet: pci-epf: reject too-short SGL segments","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: pci-epf: reject too-short SGL segments\n\nThe host controls an SGL segment's length. A nonzero length smaller than\none SGL descriptor makes nr_descs zero, so\nnvmet_pci_epf_get_sgl_segment() reads the type byte of sgls[-1] outside\nthe allocated buffer. If that byte contains a segment descriptor type,\nthe function also copies the preceding 16 bytes and returns a negative\ndescriptor count.\n\nThe read was reproduced in 3/3 KASAN boots with only the host transfer\nmocked by a KUnit test:\n\n  BUG: KASAN: slab-out-of-bounds in nvmet_pci_epf_get_sgl_segment\n  Read of size 1 by task kunit_try_catch\n  Call Trace:\n   nvmet_pci_epf_get_sgl_segment\n   nvmet_pci_epf_short_sgl_test\n  Kernel panic - not syncing: KASAN: panic_on_warn set ...\n\nReject segments that cannot hold one descriptor before allocating or\ntransferring their contents.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","source_modified_at":"2026-10-19T09:24:34.979Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"0faa0fe6f90ea59b10d1b0f15ce0eb0c18eff186","lessThan":"2423a05dd0f21330c47ce0ae1cb54a8b0be821e2","status":"affected","versionType":"git"},{"version":"0faa0fe6f90ea59b10d1b0f15ce0eb0c18eff186","lessThan":"472df1d103dbe3e9d09156f0667e36180e912c46","status":"affected","versionType":"git"},{"version":"0faa0fe6f90ea59b10d1b0f15ce0eb0c18eff186","lessThan":"5d5fbfbbacd1efb13a9bf91317d4fde859ede4b9","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","source_modified_at":"2026-10-19T09:24:34.979Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.14","status":"affected"},{"version":"0","lessThan":"6.14","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","source_modified_at":"2026-10-19T09:24:34.979Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"2423a05dd0f21330c47ce0ae1cb54a8b0be821e2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","source_modified_at":"2026-10-19T09:24:34.979Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"472df1d103dbe3e9d09156f0667e36180e912c46","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","source_modified_at":"2026-10-19T09:24:34.979Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5d5fbfbbacd1efb13a9bf91317d4fde859ede4b9","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09051,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:47:01.614Z","modified_at":"2026-10-19T09:24:34.979Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98724","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:24:34.979Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98724","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/2423a05dd0f21330c47ce0ae1cb54a8b0be821e2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/472df1d103dbe3e9d09156f0667e36180e912c46"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5d5fbfbbacd1efb13a9bf91317d4fde859ede4b9"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:24:34.979Z","content_hash":"7a687f6a97e4425f927d7b085a186ff17bb9384a5f39fd959b336cad70b37002"}}