{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-98131 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98131 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98131 and fix it if it is affected.\n\nWhat it is: CVE-2026-98131 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-98131 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2026-98131/ (Markdown: https://insights.sbomify.com/CVE-2026-98131/index.md)","id":"CVE-2026-98131","markdown":"https://insights.sbomify.com/CVE-2026-98131/index.md","name":"CVE-2026-98131","record":{"aliases":["AZL-104856","BELL-CVE-2026-98131","DEBIAN-CVE-2026-98131","GHSA-m77g-747m-3xxc","UBUNTU-CVE-2026-98131"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel network driver","requires_auth":"low_privilege","summary":"A DMA mapping leak in the stmmac network driver allows attackers to exhaust system resources, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: fix dma mapping leak in stmmac_tso_xmit()\n\nIn stmmac_tso_xmit(), if the DMA mapping of an skb fragment fails, the\nframe is dropped but the DMA mappings already created for the linear\npart and for the fragments mapped before the failure are never\nunmapped, leaking DMA mappings.\n\nFix the leak by walking back over the descriptors used by the frame and\nreleasing each of them with stmmac_free_tx_buffer(). Moreover, release\nthe descriptors with stmmac_release_tx_desc() unmapping the DMA buffers.","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":"net: stmmac: fix dma mapping leak in stmmac_tso_xmit()","id":"CVE-2026-98131","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"bpf: don't downgrade half-dead scalar zero spills to STACK_ZERO","id":"CVE-2026-98132"},"packages":[],"prev":{"headline":"sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START","id":"CVE-2026-98130"},"products":["Linux"],"published":"2026-09-25","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A DMA mapping leak in the stmmac network driver allows attackers to exhaust system resources, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-98131/"}