{"answers":{"affected":"1 open source package ship an affected version, including Kernel.","exploited":"There is no known exploitation of GSD-2021-1002309 in the wild and no public exploit code.","fix":"No fix has been published for GSD-2021-1002309 yet. Limit exposure of the affected software until one is available.","what":"GSD-2021-1002309 is a vulnerability in Kernel, published on 29 Nov 2021."},"fix_prompt":"Check this codebase for GSD-2021-1002309 and fix it if it is affected.\n\nWhat it is: GSD-2021-1002309 is a vulnerability in Kernel, published on 29 Nov 2021. \nExploitation: There is no known exploitation of GSD-2021-1002309 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Kernel (Linux): affected all versions; no fix listed\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/GSD-2021-1002309/ (Markdown: https://insights.sbomify.com/GSD-2021-1002309/index.md)","id":"GSD-2021-1002309","markdown":"https://insights.sbomify.com/GSD-2021-1002309/index.md","name":"GSD-2021-1002309","record":{"aliases":[],"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 NULL pointer dereference in the Linux Kernel Hyper-V driver can cause a system crash if Hyper-V setup fails.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails\n\nThis is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.\nThis ID is fixed in Linux Kernel version v5.15.5 by commit 8823ea27fff6084bbb4bc71d15378fae0220b1d8, it was introduced in version v4.16 by commit 93286261de1b46339aa27cd4c639b21778f6cade. For more details please see the references link.","ecosystems":["Linux"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"x86/hyperv: Fix NULL deref in set_hv_tscchange_cb() if Hyper-V setup fails","id":"GSD-2021-1002309","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Linux","product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"Linux","fixed":[],"introduced":[],"last_affected":[],"package":"Kernel","purl":null,"source":"GSD-2021-1002309"}],"products":null,"published":"2021-11-29","related":[],"sources":[{"class":"open","licence":"CC0 1.0","name":"Global Security Database","prefix":"GSD"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A NULL pointer dereference in the Linux Kernel Hyper-V driver can cause a system crash if Hyper-V setup fails.","url":"https://insights.sbomify.com/GSD-2021-1002309/"}