{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-64598 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-64598 is a high-severity vulnerability in Linux, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-64598 and fix it if it is affected.\n\nWhat it is: CVE-2026-64598 is a high-severity vulnerability in Linux, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-64598 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-2026-64598/ (Markdown: https://insights.sbomify.com/CVE-2026-64598/index.md)","id":"CVE-2026-64598","markdown":"https://insights.sbomify.com/CVE-2026-64598/index.md","name":"CVE-2026-64598","record":{"aliases":["BELL-CVE-2026-64598","DEBIAN-CVE-2026-64598","GHSA-3qwv-9mh7-f8fm","UBUNTU-CVE-2026-64598"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel SMB client","requires_auth":"none","summary":"An integer overflow in the Linux kernel SMB client causes a crash when dereferencing an invalid error pointer, leading to denial of service.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/client: Fix error code in smb2_aead_req_alloc()\n\nThe \"*num_sgs\" variable is a u32 so \"ERR_PTR(*num_sgs)\" doesn't work.\nWe would have to do something similar to the previous line where it's\ncast to int and then long.  However, it's simpler to store the return in\nan int ret variable.\n\nThis bug would eventually result in a crash when dereference the invalid\nerror pointer.","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":"smb/client: Fix error code in smb2_aead_req_alloc()","id":"CVE-2026-64598","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"crypto: amlogic - avoid double cleanup in meson_crypto_probe()","id":"CVE-2026-64599"},"packages":[],"prev":{"headline":"smb: client: fix double-free in SMB2_close() replay","id":"CVE-2026-64597"},"products":["Linux"],"published":"2026-08-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"An integer overflow in the Linux kernel SMB client causes a crash when dereferencing an invalid error pointer, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-64598/"}