{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-23256 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23256 is a medium-severity memory corruption vulnerability in Linux kernel, published on 18 Mar 2026. 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-2026-23256 and fix it if it is affected.\n\nWhat it is: CVE-2026-23256 is a medium-severity memory corruption vulnerability in Linux kernel, published on 18 Mar 2026. 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-2026-23256 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-2026-23256/ (Markdown: https://insights.sbomify.com/CVE-2026-23256/index.md)","id":"CVE-2026-23256","markdown":"https://insights.sbomify.com/CVE-2026-23256/index.md","name":"CVE-2026-23256","record":{"aliases":["BELL-CVE-2026-23256","DEBIAN-CVE-2026-23256","GHSA-wwv9-pvmj-9mc8","ROOT-OS-UBUNTU-2204-CVE-2026-23256","ROOT-OS-UBUNTU-2404-CVE-2026-23256","UBUNTU-CVE-2026-23256"],"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":"low_privilege","summary":"An off-by-one error in the Liquidio network driver cleanup path causes a memory leak, potentially leading to resource exhaustion and denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-193","name":"Off-by-one Error"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup\n\nIn setup_nic_devices(), the initialization loop jumps to the label\nsetup_nic_dev_free on failure. The current cleanup loop while(i--)\nskip the failing index i, causing a memory leak.\n\nFix this by changing the loop to iterate from the current index i\ndown to 0.\n\nCompile tested only. Issue found using code review.","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":"net: liquidio: Fix off-by-one error in VF setup_nic_devices() cleanup","id":"CVE-2026-23256","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"net: liquidio: Fix off-by-one error in PF setup_nic_devices() cleanup","id":"CVE-2026-23257"},"packages":[],"prev":{"headline":"net: add proper RCU protection to /proc/net/ptype","id":"CVE-2026-23255"},"products":["Linux"],"published":"2026-03-18","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":"2026-05-11","vendors":["Linux"]},"summary":"An off-by-one error in the Liquidio network driver cleanup path causes a memory leak, potentially leading to resource exhaustion and denial of service.","url":"https://insights.sbomify.com/CVE-2026-23256/"}