{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98483 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98483 is an use after free vulnerability in Linux, published on 18 Oct 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-2026-98483 and fix it if it is affected.\n\nWhat it is: CVE-2026-98483 is an use after free vulnerability in Linux, published on 18 Oct 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-2026-98483 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-2026-98483/ (Markdown: https://insights.sbomify.com/CVE-2026-98483/index.md)","id":"CVE-2026-98483","markdown":"https://insights.sbomify.com/CVE-2026-98483/index.md","name":"CVE-2026-98483","record":{"aliases":["AZL-109004","BELL-CVE-2026-98483","DEBIAN-CVE-2026-98483","GHSA-qhvx-2qrr-cpv7","UBUNTU-CVE-2026-98483"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel NFC","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel NFC subsystem allows local attackers to potentially execute code or escalate privileges.","user_interaction":"not_required","vuln_class":"use_after_free"},"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\nnfc: fix use-after-free in nfc_get_local_general_bytes\n\nCommit 6709d4b7bc2e (\"net: nfc: Fix use-after-free caused by\nnfc_llcp_find_local\") attempted to fix a use-after-free (UAF) issue by\ninvoking nfc_llcp_local_put(local) after accessing local-\u003egb. However,\nif the reference count drops to zero, local is freed immediately,\nleading to a use-after-free when callers access the returned pointer.\nAlternative approaches using dynamic allocation (e.g. kmemdup) introduced\nmemory leaks because callers consistently treat the returned pointer as\nborrowed memory.\n\nFix this properly by refactoring nfc_llcp_general_bytes() and\nnfc_get_local_general_bytes() to accept a caller-provided output buffer\n(out_gb) and its maximum length (gb_max_len). The general bytes are\nsafely copied into out_gb before calling nfc_llcp_local_put(local),\nensuring safe lifetime management without ownership transfer complications.\n\nUpdate all callers across drivers (microread, pn533, pn544, st21nfca,\ndigital_dep, and nci) to provide their own destination buffers and pass\nthem to nfc_get_local_general_bytes().","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":"nfc: fix use-after-free in nfc_get_local_general_bytes","id":"CVE-2026-98483","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"netfilter: nf_tables: skip expired catchall elements on insert and delete","id":"CVE-2026-98484"},"packages":[],"prev":{"headline":"nfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc()","id":"CVE-2026-98482"},"products":["Linux"],"published":"2026-10-18","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 use-after-free vulnerability in the Linux kernel NFC subsystem allows local attackers to potentially execute code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2026-98483/"}