{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46023 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-46023 is a medium-severity vulnerability in Linux kernel, published on 27 May 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-2026-46023 and fix it if it is affected.\n\nWhat it is: CVE-2026-46023 is a medium-severity vulnerability in Linux kernel, published on 27 May 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-2026-46023 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-2026-46023/ (Markdown: https://insights.sbomify.com/CVE-2026-46023/index.md)","id":"CVE-2026-46023","markdown":"https://insights.sbomify.com/CVE-2026-46023/index.md","name":"CVE-2026-46023","record":{"aliases":["AZL-88574","BELL-CVE-2026-46023","DEBIAN-CVE-2026-46023","GHSA-f54w-pgr9-9wv8","ROOT-OS-DEBIAN-11-CVE-2026-46023","ROOT-OS-DEBIAN-12-CVE-2026-46023","ROOT-OS-UBUNTU-2204-CVE-2026-46023","ROOT-OS-UBUNTU-2404-CVE-2026-46023","UBUNTU-CVE-2026-46023"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","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's device mapper mirror allows out-of-bounds reads, potentially leading to information disclosure or system 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":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-190","name":"Integer Overflow or Wraparound"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm mirror: fix integer overflow in create_dirty_log()\n\nThe argument count calculation in create_dirty_log() performs\n`*args_used = 2 + param_count` before validating against argc. When a\nuser provides a param_count close to UINT_MAX via the device mapper\ntable string, this unsigned addition wraps around to a small value,\ncausing the subsequent `argc \u003c *args_used` check to be bypassed.\n\nThe overflowed param_count is then passed as argc to dm_dirty_log_create(),\nwhere it can cause out-of-bounds reads on the argv array.\n\nFix by comparing param_count against argc - 2 before performing the\naddition, following the same pattern used by parse_features() in the\nsame file. Since argc \u003e= 2 is already guaranteed, the subtraction is\nsafe.","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":"dm mirror: fix integer overflow in create_dirty_log()","id":"CVE-2026-46023","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()","id":"CVE-2026-46024"},"packages":[],"prev":{"headline":"misc: ibmasm: fix OOB MMIO read in ibmasm_handle_mouse_interrupt()","id":"CVE-2026-46022"},"products":["Linux"],"published":"2026-05-27","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":"2026-10-15","vendors":["Linux"]},"summary":"An integer overflow in the Linux kernel's device mapper mirror allows out-of-bounds reads, potentially leading to information disclosure or system crashes.","url":"https://insights.sbomify.com/CVE-2026-46023/"}