{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89753 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89753 is a denial of service vulnerability in Linux, published on 11 Sep 2026."},"fix_prompt":"Check this codebase for CVE-2026-89753 and fix it if it is affected.\n\nWhat it is: CVE-2026-89753 is a denial of service vulnerability in Linux, published on 11 Sep 2026. \nExploitation: There is no known exploitation of CVE-2026-89753 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-2026-89753/ (Markdown: https://insights.sbomify.com/CVE-2026-89753/index.md)","id":"CVE-2026-89753","markdown":"https://insights.sbomify.com/CVE-2026-89753/index.md","name":"CVE-2026-89753","record":{"aliases":["AZL-100839","BELL-CVE-2026-89753","DEBIAN-CVE-2026-89753","GHSA-vf4v-9g5v-367g","UBUNTU-CVE-2026-89753"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"unknown","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A missing RCU quiescent state report in Linux kernel memory reclaim can cause RCU stalls and system hangs, requiring a kernel patch.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/vmscan: report RCU-tasks quiescent states in shrink_lruvec()\n\nI am seeing some rcu_tasks stalls in the Meta fleet during reclaim.\n\n  INFO: rcu_tasks detected stalls on tasks:\n\t0000000088620d09: .. nvcsw: 6735/6735 holdout: 1 idle_cpu: -1/8\n\ttask:GlobalCPUThread state:R  running task  pid:2552016 tgid:2524552\n  Call Trace:\n   shrink_lruvec\n   mem_cgroup_iter\n   shrink_node\n   do_try_to_free_pages\n   try_to_free_pages\n   __alloc_frozen_pages_noprof\n   alloc_pages_noprof\n   pte_alloc_one\n   __pte_alloc\n   handle_mm_fault\n\nNothing promises direct reclaim returns in bounded time, and the scan loop\nin shrink_lruvec() only calls cond_resched(), which is a no-op on\nPREEMPTION kernels.  Involuntary preemption is not a Tasks-RCU quiescent\nstate, so the reclaiming task never reports one and becomes a holdout.\n\nUpgrade it to cond_resched_tasks_rcu_qs(), which reports a quiescent state\neven when cond_resched() does nothing.\n\nPS: This has been discussed in [1]","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":"mm/vmscan: report RCU-tasks quiescent states in shrink_lruvec()","id":"CVE-2026-89753","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"mm/pagewalk: fix stale walk-\u003eaction escaping walk_pmd_range()","id":"CVE-2026-89754"},"packages":[],"prev":{"headline":"mm: memcg: stop reclaim when a limit update is superseded","id":"CVE-2026-89752"},"products":["Linux"],"published":"2026-09-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A missing RCU quiescent state report in Linux kernel memory reclaim can cause RCU stalls and system hangs, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2026-89753/"}