{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90327 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-90327 is a memory corruption vulnerability in Linux, published on 17 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-2026-90327 and fix it if it is affected.\n\nWhat it is: CVE-2026-90327 is a memory corruption vulnerability in Linux, published on 17 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-2026-90327 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-2026-90327/ (Markdown: https://insights.sbomify.com/CVE-2026-90327/index.md)","id":"CVE-2026-90327","markdown":"https://insights.sbomify.com/CVE-2026-90327/index.md","name":"CVE-2026-90327","record":{"aliases":["AZL-102635","BELL-CVE-2026-90327","DEBIAN-CVE-2026-90327","GHSA-j842-pq84-9gpj","UBUNTU-CVE-2026-90327"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A local attacker can trigger a buffer overflow in the Linux kernel Phonet protocol via getsockopt, potentially leaking memory or causing a crash.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\nphonet: pep: do not write beyond optlen in getsockopt\n\npep_getsockopt() clamps the reported length to the caller's buffer with\nmin_t(), but then stores the value with put_user(val, (int __user *)\noptval), which always writes sizeof(int) bytes. A getsockopt() call with\nan optlen smaller than sizeof(int) thus reports the clamped length yet\nwrites a full int, one to three bytes past the user buffer.\n\nWrite the value with copy_to_user() bounded by len, so at most optlen\nbytes are copied, matching the length reported back to userspace.","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":"phonet: pep: do not write beyond optlen in getsockopt","id":"CVE-2026-90327","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"HID: steam: Reject short reads","id":"CVE-2026-90328"},"packages":[],"prev":{"headline":"blk-cgroup: fix race between policy activation and blkg destruction","id":"CVE-2026-90326"},"products":["Linux"],"published":"2026-09-17","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 local attacker can trigger a buffer overflow in the Linux kernel Phonet protocol via getsockopt, potentially leaking memory or causing a crash.","url":"https://insights.sbomify.com/CVE-2026-90327/"}