{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54255 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54255 is a denial of service vulnerability in Linux, published on 30 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-2023-54255 and fix it if it is affected.\n\nWhat it is: CVE-2023-54255 is a denial of service vulnerability in Linux, published on 30 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-2023-54255 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-2023-54255/ (Markdown: https://insights.sbomify.com/CVE-2023-54255/index.md)","id":"CVE-2023-54255","markdown":"https://insights.sbomify.com/CVE-2023-54255/index.md","name":"CVE-2023-54255","record":{"aliases":["BELL-CVE-2023-54255","DEBIAN-CVE-2023-54255","GHSA-hvj9-4j33-rmxc","UBUNTU-CVE-2023-54255"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A flaw in the Linux kernel SH DMA driver causes incorrect offset calculations, leading to kernel panics and denial of service on affected SuperH architectures.","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\nsh: dma: Fix DMA channel offset calculation\n\nVarious SoCs of the SH3, SH4 and SH4A family, which use this driver,\nfeature a differing number of DMA channels, which can be distributed\nbetween up to two DMAC modules. The existing implementation fails to\ncorrectly accommodate for all those variations, resulting in wrong\nchannel offset calculations and leading to kernel panics.\n\nRewrite dma_base_addr() in order to properly calculate channel offsets\nin a DMAC module. Fix dmaor_read_reg() and dmaor_write_reg(), so that\nthe correct DMAC module base is selected for the DMAOR register.","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":"sh: dma: Fix DMA channel offset calculation","id":"CVE-2023-54255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2023-54256"},"packages":[],"prev":{"headline":"drm/ttm: Don't leak a resource on eviction error","id":"CVE-2023-54254"},"products":["Linux"],"published":"2025-12-30","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":"2026-05-11","vendors":["Linux"]},"summary":"A flaw in the Linux kernel SH DMA driver causes incorrect offset calculations, leading to kernel panics and denial of service on affected SuperH architectures.","url":"https://insights.sbomify.com/CVE-2023-54255/"}