{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90435 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-90435 is a high-severity 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-2026-90435 and fix it if it is affected.\n\nWhat it is: CVE-2026-90435 is a high-severity 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-2026-90435 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-2026-90435/ (Markdown: https://insights.sbomify.com/CVE-2026-90435/index.md)","id":"CVE-2026-90435","markdown":"https://insights.sbomify.com/CVE-2026-90435/index.md","name":"CVE-2026-90435","record":{"aliases":["AZL-102194","BELL-CVE-2026-90435","DEBIAN-CVE-2026-90435","GHSA-4ff5-3w52-wwv7","UBUNTU-CVE-2026-90435"],"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 RDMA","requires_auth":"low_privilege","summary":"A signed integer overflow in the Linux kernel RDMA driver allows attackers to map undersized buffers, potentially leading to memory corruption and privilege escalation.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nRDMA/mlx5: Fix integer overflow of user QP buffer size\n\nset_user_buf_size() computes the QP buffer size by left-shifting the\nuser-supplied rq.wqe_cnt and rq.wqe_shift values as signed integers.\nA sufficiently large rq.wqe_cnt causes signed integer overflow, which\nis undefined behavior, and yields a small or negative buf_size, causing\nib_umem_get() to map a buffer smaller than the hardware will actually\nwrite into.\n\nReplace the shifts and addition with check_shl_overflow() and\ncheck_add_overflow(), rejecting invalid user inputs.\n\nMoreover, guard the identical shift computing qp-\u003esq.offset in\n_create_user_qp() before set_user_buf_size() is reached.","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":"RDMA/mlx5: Fix integer overflow of user QP buffer size","id":"CVE-2026-90435","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Ninja Forms \u003c= 3.15.4 - Unauthenticated Stored Cross-Site Scripting via Paragraph Text (RTE) Field Submission","id":"CVE-2026-90438"},"packages":[],"prev":{"headline":"isofs: release zisofs block pointer buffer head","id":"CVE-2026-90434"},"products":["Linux"],"published":"2026-09-17","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A signed integer overflow in the Linux kernel RDMA driver allows attackers to map undersized buffers, potentially leading to memory corruption and privilege escalation.","url":"https://insights.sbomify.com/CVE-2026-90435/"}