{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31453 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-31453 is a high-severity use after free vulnerability in Linux kernel, published on 22 Apr 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-2026-31453 and fix it if it is affected.\n\nWhat it is: CVE-2026-31453 is a high-severity use after free vulnerability in Linux kernel, published on 22 Apr 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-2026-31453 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-2026-31453/ (Markdown: https://insights.sbomify.com/CVE-2026-31453/index.md)","id":"CVE-2026-31453","markdown":"https://insights.sbomify.com/CVE-2026-31453/index.md","name":"CVE-2026-31453","record":{"aliases":["AZL-83357","BELL-CVE-2026-31453","DEBIAN-CVE-2026-31453","GHSA-h88h-485v-q9qv","ROOT-OS-DEBIAN-11-CVE-2026-31453","ROOT-OS-DEBIAN-12-CVE-2026-31453","ROOT-OS-DEBIAN-13-CVE-2026-31453","ROOT-OS-UBUNTU-2204-CVE-2026-31453","ROOT-OS-UBUNTU-2404-CVE-2026-31453","UBUNTU-CVE-2026-31453"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel XFS","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel XFS filesystem allows local attackers to cause a denial of service via log item dereferencing.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: avoid dereferencing log items after push callbacks\n\nAfter xfsaild_push_item() calls iop_push(), the log item may have been\nfreed if the AIL lock was dropped during the push. Background inode\nreclaim or the dquot shrinker can free the log item while the AIL lock\nis not held, and the tracepoints in the switch statement dereference\nthe log item after iop_push() returns.\n\nFix this by capturing the log item type, flags, and LSN before calling\nxfsaild_push_item(), and introducing a new xfs_ail_push_class trace\nevent class that takes these pre-captured values and the ailp pointer\ninstead of the log item pointer.","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":"xfs: avoid dereferencing log items after push callbacks","id":"CVE-2026-31453","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"xfs: save ailp before dropping the AIL lock in push callbacks","id":"CVE-2026-31454"},"packages":[],"prev":{"headline":"ext4: convert inline data to extents when truncate exceeds inline size","id":"CVE-2026-31452"},"products":["Linux"],"published":"2026-04-22","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel XFS filesystem allows local attackers to cause a denial of service via log item dereferencing.","url":"https://insights.sbomify.com/CVE-2026-31453/"}