{"id":"CVE-2026-98853","aliases":[],"cve":{"records":[{"id":"CVE-2026-98853","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.376Z","published":"2026-10-18T15:51:02.683Z","modified":"2026-11-10T18:15:20.032Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-11-10T18:15:20.032Z"}],"references":[{"url":"https://git.kernel.org/stable/c/cadffc83ee1a560d5cd18e6d607c1d76f6fd4bd4","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/388604279da3d0698a151efa4fb6d852efa0de4a","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/c949646c900e879afce47df1b607fa320eb63bf2","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/006c8b834aed8b02bd8fb9fb05e9e7ead37d1763","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.12.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"6.18.60"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.13","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"net: gso: limit recursive IP-in-IP segmentation","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: gso: limit recursive IP-in-IP segmentation\n\nIP-in-IP GSO can re-enter inet_gso_segment() or ipv6_gso_segment()\nfor each nested IP header. encap_level tracks header bytes, not callback\ndepth, so a deep chain can exhaust the kernel stack. Making\ninet_gso_segment() stackable introduced unbounded IPv4 nesting; IPIP\nGSO/TSO later made the path reachable. The IPv6 stackable path was\nintroduced separately and uses the same guard.\n\nCount IPv4 and IPv6 GSO handler entries in skb_gso_cb, initialized once\nper top-level GSO operation and preserved across GRE/UDP context changes.\nUse the existing IP_TUNNEL_RECURSION_LIMIT for both handlers. The first\nfive entries pass, and the sixth returns -EINVAL before dispatching\nanother GSO callback.","score":null,"severity":"unknown","published":"2026-10-18T15:51:02.683Z","modified":"2026-11-10T18:15:20.032Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"3347c960295583eee3fd58e5c539fb1972fbc005","status":"affected","lessThan":"cadffc83ee1a560d5cd18e6d607c1d76f6fd4bd4","versionType":"git"},{"version":"3347c960295583eee3fd58e5c539fb1972fbc005","status":"affected","lessThan":"388604279da3d0698a151efa4fb6d852efa0de4a","versionType":"git"},{"version":"3347c960295583eee3fd58e5c539fb1972fbc005","status":"affected","lessThan":"c949646c900e879afce47df1b607fa320eb63bf2","versionType":"git"},{"version":"3347c960295583eee3fd58e5c539fb1972fbc005","status":"affected","lessThan":"006c8b834aed8b02bd8fb9fb05e9e7ead37d1763","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98853"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"3.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.13","versionType":"semver"},{"version":"6.12.117","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.60","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98853"}],"remediation":[],"references":["https://git.kernel.org/stable/c/cadffc83ee1a560d5cd18e6d607c1d76f6fd4bd4","https://git.kernel.org/stable/c/388604279da3d0698a151efa4fb6d852efa0de4a","https://git.kernel.org/stable/c/c949646c900e879afce47df1b607fa320eb63bf2","https://git.kernel.org/stable/c/006c8b834aed8b02bd8fb9fb05e9e7ead37d1763"],"sources":[{"name":"CVE","id":"CVE-2026-98853","modified":"2026-11-10T18:15:20.032Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98853"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-11-10T18:25:22.564Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T22:40:32.870Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}