{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74647 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74647 is a high-severity vulnerability in Linux, published on 22 Aug 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-2026-74647 and fix it if it is affected.\n\nWhat it is: CVE-2026-74647 is a high-severity vulnerability in Linux, published on 22 Aug 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-2026-74647 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-2026-74647/ (Markdown: https://insights.sbomify.com/CVE-2026-74647/index.md)","id":"CVE-2026-74647","markdown":"https://insights.sbomify.com/CVE-2026-74647/index.md","name":"CVE-2026-74647","record":{"aliases":["BELL-CVE-2026-74647","DEBIAN-CVE-2026-74647","GHSA-4jph-32qw-h3gw","UBUNTU-CVE-2026-74647"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["other"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel fastrpc driver allows concurrent unmap operations to corrupt buffer state, potentially leading to undefined behavior.","user_interaction":"not_required","vuln_class":"race_condition"},"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\nmisc: fastrpc: Remove buffer from list prior to unmap operation\n\nfastrpc_req_munmap_impl() is called to unmap any buffer. The buffer is\ngetting removed from the list after it is unmapped from DSP. This can\ncreate potential race conditions if multiple threads invoke unmap\nconcurrently, where one thread may remove the entry from the list while\nanother thread's unmap operation is still ongoing.\n\nFix this by removing the buffer entry from the list before calling the\nunmap operation. If the unmap fails, the entry is re-added to the list\nso that userspace can retry the unmap, or alternatively, the buffer\nwill be cleaned up during device release when the DSP process is torn\ndown and all DSP-side mappings are freed along with remaining buffers\nin the list.","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: Remove buffer from list prior to unmap operation","id":"CVE-2026-74647","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"staging: rtl8723bs: validate monitor transmit frame lengths","id":"CVE-2026-74648"},"packages":[],"prev":{"headline":"misc: fastrpc: take fl-\u003elock when moving mmaps on interrupted invoke","id":"CVE-2026-74646"},"products":["Linux"],"published":"2026-08-22","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":"2026-08-27","vendors":["Linux"]},"summary":"A race condition in the Linux kernel fastrpc driver allows concurrent unmap operations to corrupt buffer state, potentially leading to undefined behavior.","url":"https://insights.sbomify.com/CVE-2026-74647/"}