{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90273 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-90273 is a denial of service vulnerability in Linux, published on 17 Sep 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-2026-90273 and fix it if it is affected.\n\nWhat it is: CVE-2026-90273 is a denial of service vulnerability in Linux, published on 17 Sep 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-2026-90273 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-2026-90273/ (Markdown: https://insights.sbomify.com/CVE-2026-90273/index.md)","id":"CVE-2026-90273","markdown":"https://insights.sbomify.com/CVE-2026-90273/index.md","name":"CVE-2026-90273","record":{"aliases":["AZL-102999","BELL-CVE-2026-90273","DEBIAN-CVE-2026-90273","GHSA-24qc-78x7-rfr3","UBUNTU-CVE-2026-90273"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A missing function call in the Linux kernel's CoreSight ETM4x driver causes a reference count leak, potentially leading to resource exhaustion and denial of service.","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\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc-\u003eactive_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths.","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":"coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable","id":"CVE-2026-90273","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"coresight: etm4x: fix underflow for usage of (nrseqstate - 1)","id":"CVE-2026-90274"},"packages":[],"prev":{"headline":"perf: arm_pmuv3: Zero initialize hw_id branch stack field","id":"CVE-2026-90272"},"products":["Linux"],"published":"2026-09-17","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":"2026-10-21","vendors":["Linux"]},"summary":"A missing function call in the Linux kernel's CoreSight ETM4x driver causes a reference count leak, potentially leading to resource exhaustion and denial of service.","url":"https://insights.sbomify.com/CVE-2026-90273/"}