{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53820 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53820 is a vulnerability in Linux, published on 9 Dec 2025. 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-2023-53820 and fix it if it is affected.\n\nWhat it is: CVE-2023-53820 is a vulnerability in Linux, published on 9 Dec 2025. 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-2023-53820 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-2023-53820/ (Markdown: https://insights.sbomify.com/CVE-2023-53820/index.md)","id":"CVE-2023-53820","markdown":"https://insights.sbomify.com/CVE-2023-53820/index.md","name":"CVE-2023-53820","record":{"aliases":["BELL-CVE-2023-53820","DEBIAN-CVE-2023-53820","GHSA-3f7g-86g8-7vgv","UBUNTU-CVE-2023-53820"],"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":"An integer overflow in the Linux kernel loop driver can cause incorrect offset assignments, leading to potential denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nloop: loop_set_status_from_info() check before assignment\n\nIn loop_set_status_from_info(), lo-\u003elo_offset and lo-\u003elo_sizelimit should\nbe checked before reassignment, because if an overflow error occurs, the\noriginal correct value will be changed to the wrong value, and it will not\nbe changed back.\n\nMore, the original patch did not solve the problem, the value was set and\nioctl returned an error, but the subsequent io used the value in the loop\ndriver, which still caused an alarm:\n\nloop_handle_cmd\n do_req_filebacked\n  loff_t pos = ((loff_t) blk_rq_pos(rq) \u003c\u003c 9) + lo-\u003elo_offset;\n  lo_rw_aio\n   cmd-\u003eiocb.ki_pos = pos","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":"loop: loop_set_status_from_info() check before assignment","id":"CVE-2023-53820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2023"},"n_packages":0,"n_references":9,"next":{"headline":"ip6_vti: fix slab-use-after-free in decode_session6","id":"CVE-2023-53821"},"packages":[],"prev":{"headline":"amdgpu: validate offset_in_bo of drm_amdgpu_gem_va","id":"CVE-2023-53819"},"products":["Linux"],"published":"2025-12-09","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":"2026-05-23","vendors":["Linux"]},"summary":"An integer overflow in the Linux kernel loop driver can cause incorrect offset assignments, leading to potential denial of service.","url":"https://insights.sbomify.com/CVE-2023-53820/"}