{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98102 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98102 is a vulnerability in Linux, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98102 and fix it if it is affected.\n\nWhat it is: CVE-2026-98102 is a vulnerability in Linux, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-98102 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-98102/ (Markdown: https://insights.sbomify.com/CVE-2026-98102/index.md)","id":"CVE-2026-98102","markdown":"https://insights.sbomify.com/CVE-2026-98102/index.md","name":"CVE-2026-98102","record":{"aliases":["AZL-104442","BELL-CVE-2026-98102","DEBIAN-CVE-2026-98102","GHSA-g228-xhf6-wqq6","UBUNTU-CVE-2026-98102"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A race condition in Linux kernel IPv6 multicast handling allows concurrent readers to miss active sources or examine deleted entries, potentially causing data inconsistency or denial of service.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: fix RCU list diversion in ip6_mc_del1_src()\n\nWhen removing a source filter whose count reaches zero, ip6_mc_del1_src()\nunlinks psf from pmc-\u003emca_sources. If the filter was previously active,\nthe code moved psf directly into pmc-\u003emca_tomb by updating psf-\u003esf_next.\n\nBecause pmc-\u003emca_sources is traversed locklessly under RCU (e.g. by\nipv6_chk_mcast_addr()), mutating psf-\u003esf_next before a grace period\nelapses diverts concurrent readers to the tombstone list. Consequently,\nreaders miss remaining active sources in pmc-\u003emca_sources and improperly\nexamine deleted tombstone entries.\n\nFix this by allocating a new tombstone node for pmc-\u003emca_tomb (as done\nin sf_setstate()) and retiring the original psf via kfree_rcu().","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"ipv6: mcast: fix RCU list diversion in ip6_mc_del1_src()","id":"CVE-2026-98102","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"igmp: convert struct ip_sf_list to RCU","id":"CVE-2026-98103"},"packages":[],"prev":{"headline":"ipv6: mcast: use copy-on-write RCU updates in ip6_mc_source()","id":"CVE-2026-98101"},"products":["Linux"],"published":"2026-09-25","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A race condition in Linux kernel IPv6 multicast handling allows concurrent readers to miss active sources or examine deleted entries, potentially causing data inconsistency or denial of service.","url":"https://insights.sbomify.com/CVE-2026-98102/"}