{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98048 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98048 is a code injection vulnerability in Linux, 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-2026-98048 and fix it if it is affected.\n\nWhat it is: CVE-2026-98048 is a code injection vulnerability in Linux, 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-2026-98048 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-2026-98048/ (Markdown: https://insights.sbomify.com/CVE-2026-98048/index.md)","id":"CVE-2026-98048","markdown":"https://insights.sbomify.com/CVE-2026-98048/index.md","name":"CVE-2026-98048","record":{"aliases":["BELL-CVE-2026-98048","DEBIAN-CVE-2026-98048","GHSA-6g34-ggc8-pv58","UBUNTU-CVE-2026-98048"],"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","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel's BPF verifier allows attackers to bypass jump checks, potentially leading to arbitrary code execution or privilege escalation.","user_interaction":"not_required","vuln_class":"code_injection"},"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\nbpf: don't rewrite bpf_fastcall patterns entered by a jump\n\nmark_fastcall_pattern_for_call() must ensure that matched\n\"spill; call; fill\" instruction series is not interrupted by a jump.\nOtherwise the rewrite applied by bpf_remove_fastcall_spills_fills()\nis not sound.\n\nRecord the instructions targeted by jumps in\ninsn_aux_data[*].jump_target when the CFG is built and use this flag\nto stop growing a pattern at such an instruction. Jumps to the first\nspill are fine.\n\nNote that existing insn_aux_data[*].jmp_point field can't be reused,\nas it marks subprogram return instructions.","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":"bpf: don't rewrite bpf_fastcall patterns entered by a jump","id":"CVE-2026-98048","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"bpf: zero extend the result of an arena 32-bit cmpxchg","id":"CVE-2026-98049"},"packages":[],"prev":{"headline":"bpf: Check ancestor frames for rbtree callbacks","id":"CVE-2026-98047"},"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":"2026-10-21","vendors":["Linux"]},"summary":"A flaw in the Linux kernel's BPF verifier allows attackers to bypass jump checks, potentially leading to arbitrary code execution or privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-98048/"}