{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-99187 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-99187 is a vulnerability in Linux, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-99187 and fix it if it is affected.\n\nWhat it is: CVE-2026-99187 is a vulnerability in Linux, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-99187 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-2026-99187/ (Markdown: https://insights.sbomify.com/CVE-2026-99187/index.md)","id":"CVE-2026-99187","markdown":"https://insights.sbomify.com/CVE-2026-99187/index.md","name":"CVE-2026-99187","record":{"aliases":["AZL-111350","BELL-CVE-2026-99187","DEBIAN-CVE-2026-99187","GHSA-29rh-rvqr-jrpj","UBUNTU-CVE-2026-99187"],"analysis":null,"analysis_generated_by":null,"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\nperf: Fix perf_pmu_migrate_context() leaving events behind\n\n__perf_pmu_remove() walks the group leaders of a CPU and PMU with\nperf_event_groups_for_cpu_pmu(), removing each one as it goes.\nperf_remove_from_context() takes the leader out of the groups rbtree,\nafter which rb_next() on that node returns NULL, prematurely ending the\nwalk. Other groups stay behind in the source context.\n\nOn CPU hotplug, they are then torn down with the dying CPU. They keep\nrunning until teardown, while the PMU's interrupt and migrated events\nare on a new CPU, which drivers rely on never happening.\n\nWalk ctx-\u003eevent_list instead and pick out the PMU's events by their\npmu_ctx.","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":"perf: Fix perf_pmu_migrate_context() leaving events behind","id":"CVE-2026-99187","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"net: stmmac: dwmac1000: clear the RGMII status interrupt","id":"CVE-2026-99188"},"packages":[],"prev":{"headline":"x86/insn-eval: Fix shadowed segment index in get_seg_reg_override_idx()","id":"CVE-2026-99186"},"products":["Linux"],"published":"2026-10-28","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":"2026-10-28","vendors":["Linux"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-99187/"}