{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-22039 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-22039 is a high-severity vulnerability in Linux kernel, published on 16 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-22039 and fix it if it is affected.\n\nWhat it is: CVE-2025-22039 is a high-severity vulnerability in Linux kernel, published on 16 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-22039 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2025-22039/ (Markdown: https://insights.sbomify.com/CVE-2025-22039/index.md)","id":"CVE-2025-22039","markdown":"https://insights.sbomify.com/CVE-2025-22039/index.md","name":"CVE-2025-22039","record":{"aliases":["BELL-CVE-2025-22039","DEBIAN-CVE-2025-22039","GHSA-xm3p-r4jv-jxcf","ROOT-OS-DEBIAN-12-CVE-2025-22039","ROOT-OS-UBUNTU-2204-CVE-2025-22039","ROOT-OS-UBUNTU-2404-CVE-2025-22039","UBUNTU-CVE-2025-22039"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel ksmbd","requires_auth":"low_privilege","summary":"An integer overflow in the Linux kernel's ksmbd module allows bypassing bounds checks, leading to out-of-bounds memory access and kernel crashes.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"},{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix overflow in dacloffset bounds check\n\nThe dacloffset field was originally typed as int and used in an\nunchecked addition, which could overflow and bypass the existing\nbounds check in both smb_check_perm_dacl() and smb_inherit_dacl().\n\nThis could result in out-of-bounds memory access and a kernel crash\nwhen dereferencing the DACL pointer.\n\nThis patch converts dacloffset to unsigned int and uses\ncheck_add_overflow() to validate access to the DACL.","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":"ksmbd: fix overflow in dacloffset bounds check","id":"CVE-2025-22039","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":7,"next":{"headline":"ksmbd: fix session use-after-free in multichannel connection","id":"CVE-2025-22040"},"packages":[],"prev":{"headline":"ksmbd: validate zero num_subauth before sub_auth is accessed","id":"CVE-2025-22038"},"products":["Linux"],"published":"2025-04-16","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-09-14","vendors":["Linux"]},"summary":"An integer overflow in the Linux kernel's ksmbd module allows bypassing bounds checks, leading to out-of-bounds memory access and kernel crashes.","url":"https://insights.sbomify.com/CVE-2025-22039/"}