{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31730 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31730 is a high-severity use after free vulnerability in Linux kernel, published on 1 May 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-2026-31730 and fix it if it is affected.\n\nWhat it is: CVE-2026-31730 is a high-severity use after free vulnerability in Linux kernel, published on 1 May 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-2026-31730 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-2026-31730/ (Markdown: https://insights.sbomify.com/CVE-2026-31730/index.md)","id":"CVE-2026-31730","markdown":"https://insights.sbomify.com/CVE-2026-31730/index.md","name":"CVE-2026-31730","record":{"aliases":["BELL-CVE-2026-31730","DEBIAN-CVE-2026-31730","GHSA-8r84-g6v2-vrq6","ROOT-OS-UBUNTU-2404-CVE-2026-31730","UBUNTU-CVE-2026-31730"],"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 driver","requires_auth":"low_privilege","summary":"A double-free vulnerability in the Linux kernel fastrpc driver allows attackers to potentially execute code or escalate privileges via specific ioctl and device removal sequences.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"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":[{"id":"CWE-415","name":"Double Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: possible double-free of cctx-\u003eremote_heap\n\nfastrpc_init_create_static_process() may free cctx-\u003eremote_heap on the\nerr_map path but does not clear the pointer. Later, fastrpc_rpmsg_remove()\nfrees cctx-\u003eremote_heap again if it is non-NULL, which can lead to a\ndouble-free if the INIT_CREATE_STATIC ioctl hits the error path and the rpmsg\ndevice is subsequently removed/unbound.\nClear cctx-\u003eremote_heap after freeing it in the error path to prevent the\nlater cleanup from freeing it again.\n\nThis issue was found by an in-house analysis workflow that extracts AST-based\ninformation and runs static checks, with LLM assistance for triage, and was\nconfirmed by manual code review.\nNo hardware testing was performed.","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":"misc: fastrpc: possible double-free of cctx-\u003eremote_heap","id":"CVE-2026-31730","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"thermal: core: Address thermal zone removal races with resume","id":"CVE-2026-31731"},"packages":[],"prev":{"headline":"usb: typec: ucsi: validate connector number in ucsi_notify_common()","id":"CVE-2026-31729"},"products":["Linux"],"published":"2026-05-01","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A double-free vulnerability in the Linux kernel fastrpc driver allows attackers to potentially execute code or escalate privileges via specific ioctl and device removal sequences.","url":"https://insights.sbomify.com/CVE-2026-31730/"}