{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98365 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98365 is a critical vulnerability in Linux, published on 6 Oct 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-2026-98365 and fix it if it is affected.\n\nWhat it is: CVE-2026-98365 is a critical vulnerability in Linux, published on 6 Oct 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-2026-98365 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-2026-98365/ (Markdown: https://insights.sbomify.com/CVE-2026-98365/index.md)","id":"CVE-2026-98365","markdown":"https://insights.sbomify.com/CVE-2026-98365/index.md","name":"CVE-2026-98365","record":{"aliases":["AZL-106473","BELL-CVE-2026-98365","DEBIAN-CVE-2026-98365","GHSA-3p8h-wx5x-6qq3","UBUNTU-CVE-2026-98365"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel RDMA","requires_auth":"none","summary":"A remote attacker can trigger an integer overflow in the Linux kernel RDMA module, causing an out-of-bounds access that leads to a kernel crash or potential code execution.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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/rxe: Fix integer overflow in mr_check_range() leading to OOB access\n\nmr_check_range() validates that [iova, iova+length) falls within the\nregistered MR range using wraparound-prone arithmetic:\n\n    if (iova \u003c mr-\u003eibmr.iova ||\n        iova + length \u003e mr-\u003eibmr.iova + mr-\u003eibmr.length)\n\nA remote peer can craft an RDMA-Write/Read RETH so that iova + length\nwraps to 0 (e.g. iova=0xfffffffffffffff8, length=8), bypassing the\ncheck. rxe_mr_iova_to_index() then computes a huge index (int idx, only\nguarded by WARN_ON) and rxe_mr_copy_xarray() dereferences\nmr-\u003epage_info[huge], causing an out-of-bounds read/write and a kernel\noops that is triggerable by an unauthenticated remote peer.\n\nRewrite the check in overflow-safe form; the first two clauses guarantee\nthat the subsequent subtractions do not underflow:\n\n    if (iova \u003c mr-\u003eibmr.iova ||\n        length \u003e mr-\u003eibmr.length ||\n        iova - mr-\u003eibmr.iova \u003e mr-\u003eibmr.length - length)\n\nWith the fix, mr_check_range() returns -EINVAL for the crafted iova and\nthe responder reports REMOTE_ACCESS_ERROR instead of triggering the OOB.","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/rxe: Fix integer overflow in mr_check_range() leading to OOB access","id":"CVE-2026-98365","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":"RDMA/rxe: validate access flags before swapping the MR's PD","id":"CVE-2026-98366"},"packages":[],"prev":{"headline":"xfrm: hold net_device reference under RCU in bundle creation","id":"CVE-2026-98364"},"products":["Linux"],"published":"2026-10-06","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 remote attacker can trigger an integer overflow in the Linux kernel RDMA module, causing an out-of-bounds access that leads to a kernel crash or potential code execution.","url":"https://insights.sbomify.com/CVE-2026-98365/"}