{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74354 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74354 is a high-severity vulnerability in Linux, published on 15 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-2026-74354 and fix it if it is affected.\n\nWhat it is: CVE-2026-74354 is a high-severity vulnerability in Linux, published on 15 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-2026-74354 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-2026-74354/ (Markdown: https://insights.sbomify.com/CVE-2026-74354/index.md)","id":"CVE-2026-74354","markdown":"https://insights.sbomify.com/CVE-2026-74354/index.md","name":"CVE-2026-74354","record":{"aliases":["BELL-CVE-2026-74354","DEBIAN-CVE-2026-74354","GHSA-g336-8h5f-6m63","UBUNTU-CVE-2026-74354"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel BPF","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel BPF subsystem allows attackers to cause denial of service or potentially escalate privileges via improper locking in zap_pages().","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\nbpf: Take mmap_lock in zap_pages()\n\nzap_vma_range() requires the owning mm's mmap_lock to be held.\n\nTaking mmap_read_lock under arena-\u003elock would AB-BA against\narena_vm_close() and arena_map_mmap(), both of which run with\nmmap_write_lock held and then acquire arena-\u003elock. Instead drop\narena-\u003elock, mmget_not_zero() the vma's mm, take mmap_read_lock, and\nre-resolve the vma via find_vma() since it may have been unmapped or\nreplaced while waiting.\n\nTrack processed vmls with a per-call generation in vml-\u003ezap_gen and\nserialize zap_pages() callers with a new arena-\u003ezap_mutex so\nconcurrent callers on different uaddr ranges do not mark each other's\nvmls processed before the zap is done.","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":"bpf: Take mmap_lock in zap_pages()","id":"CVE-2026-74354","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"iommu/vt-d: Fix RB-tree corruption in probe error path","id":"CVE-2026-74355"},"packages":[],"prev":{"headline":"drm/amdkfd: always resume_all after suspend_all","id":"CVE-2026-74353"},"products":["Linux"],"published":"2026-08-15","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["Linux"]},"summary":"A race condition in the Linux kernel BPF subsystem allows attackers to cause denial of service or potentially escalate privileges via improper locking in zap_pages().","url":"https://insights.sbomify.com/CVE-2026-74354/"}