{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31612 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31612 is a high-severity vulnerability in Linux kernel, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-31612 and fix it if it is affected.\n\nWhat it is: CVE-2026-31612 is a high-severity vulnerability in Linux kernel, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-31612 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-2026-31612/ (Markdown: https://insights.sbomify.com/CVE-2026-31612/index.md)","id":"CVE-2026-31612","markdown":"https://insights.sbomify.com/CVE-2026-31612/index.md","name":"CVE-2026-31612","record":{"aliases":["AZL-83783","BELL-CVE-2026-31612","DEBIAN-CVE-2026-31612","GHSA-mgh3-34fv-3j84","ROOT-OS-DEBIAN-12-CVE-2026-31612","ROOT-OS-UBUNTU-2204-CVE-2026-31612","ROOT-OS-UBUNTU-2404-CVE-2026-31612","UBUNTU-CVE-2026-31612"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel ksmbd","requires_auth":"none","summary":"A missing length validation in the Linux kernel's ksmbd module allows attackers to leak uninitialized heap memory via crafted SMB2 requests.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: validate EaNameLength in smb2_get_ea()\n\nsmb2_get_ea() reads ea_req-\u003eEaNameLength from the client request and\npasses it directly to strncmp() as the comparison length without\nverifying that the length of the name really is the size of the input\nbuffer received.\n\nFix this up by properly checking the size of the name based on the value\nreceived and the overall size of the request, to prevent a later\nstrncmp() call to use the length as a \"trusted\" size of the buffer.\nWithout this check, uninitialized heap values might be slowly leaked to\nthe client.","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":"ksmbd: validate EaNameLength in smb2_get_ea()","id":"CVE-2026-31612","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"smb: client: fix OOB reads parsing symlink error response","id":"CVE-2026-31613"},"packages":[],"prev":{"headline":"ksmbd: require 3 sub-authorities before reading sub_auth[2]","id":"CVE-2026-31611"},"products":["Linux"],"published":"2026-04-24","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A missing length validation in the Linux kernel's ksmbd module allows attackers to leak uninitialized heap memory via crafted SMB2 requests.","url":"https://insights.sbomify.com/CVE-2026-31612/"}