{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-39990 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-39990 is a high-severity vulnerability in Linux, published on 15 Oct 2025. 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-2025-39990 and fix it if it is affected.\n\nWhat it is: CVE-2025-39990 is a high-severity vulnerability in Linux, published on 15 Oct 2025. 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-2025-39990 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-2025-39990/ (Markdown: https://insights.sbomify.com/CVE-2025-39990/index.md)","id":"CVE-2025-39990","markdown":"https://insights.sbomify.com/CVE-2025-39990/index.md","name":"CVE-2025-39990","record":{"aliases":["AZL-68519","BELL-CVE-2025-39990","DEBIAN-CVE-2025-39990","GHSA-2m9q-5w5g-jwfp","ROOT-OS-DEBIAN-11-CVE-2025-39990","ROOT-OS-DEBIAN-12-CVE-2025-39990","ROOT-OS-DEBIAN-13-CVE-2025-39990","ROOT-OS-UBUNTU-2204-CVE-2025-39990","ROOT-OS-UBUNTU-2404-CVE-2025-39990","UBUNTU-CVE-2025-39990"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A null pointer dereference in the Linux kernel BPF verifier can cause a system crash when specific configuration options are disabled.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check the helper function is valid in get_helper_proto\n\nkernel test robot reported verifier bug [1] where the helper func\npointer could be NULL due to disabled config option.\n\nAs Alexei suggested we could check on that in get_helper_proto\ndirectly. Marking tail_call helper func with BPF_PTR_POISON,\nbecause it is unused by design.\n\n  [1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com","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: Check the helper function is valid in get_helper_proto","id":"CVE-2025-39990","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load()","id":"CVE-2025-39991"},"packages":[],"prev":{"headline":"x86/mce: use is_copy_from_user() to determine copy-from-user context","id":"CVE-2025-39989"},"products":["Linux"],"published":"2025-10-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel BPF verifier can cause a system crash when specific configuration options are disabled.","url":"https://insights.sbomify.com/CVE-2025-39990/"}