{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63953 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63953 is a memory corruption vulnerability in Linux, published on 19 Jul 2026."},"fix_prompt":"Check this codebase for CVE-2026-63953 and fix it if it is affected.\n\nWhat it is: CVE-2026-63953 is a memory corruption vulnerability in Linux, published on 19 Jul 2026. \nExploitation: There is no known exploitation of CVE-2026-63953 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-2026-63953/ (Markdown: https://insights.sbomify.com/CVE-2026-63953/index.md)","id":"CVE-2026-63953","markdown":"https://insights.sbomify.com/CVE-2026-63953/index.md","name":"CVE-2026-63953","record":{"aliases":["DEBIAN-CVE-2026-63953","GHSA-68mw-455j-vxm4","UBUNTU-CVE-2026-63953"],"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 memory leak in the Linux kernel's device migration code allows attackers to exhaust system memory, leading to denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\nmm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page\n\nWhen migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due\nto a PMD check failure, the pgtable allocated earlier via\npte_alloc_one() is never freed, causing a memory leak.\n\nAdded free_abort label to release the pgtable in error path.","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":"mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page","id":"CVE-2026-63953","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"hpfs: fix a crash if hpfs_map_dnode_bitmap fails","id":"CVE-2026-63954"},"packages":[],"prev":{"headline":"memfd: deny writeable mappings when implying SEAL_WRITE","id":"CVE-2026-63952"},"products":["Linux"],"published":"2026-07-19","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":"2026-07-19","vendors":["Linux"]},"summary":"A memory leak in the Linux kernel's device migration code allows attackers to exhaust system memory, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-63953/"}