{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-64356 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-64356 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 Jul 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-2026-64356 and fix it if it is affected.\n\nWhat it is: CVE-2026-64356 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 Jul 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-2026-64356 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-2026-64356/ (Markdown: https://insights.sbomify.com/CVE-2026-64356/index.md)","id":"CVE-2026-64356","markdown":"https://insights.sbomify.com/CVE-2026-64356/index.md","name":"CVE-2026-64356","record":{"aliases":["BELL-CVE-2026-64356","DEBIAN-CVE-2026-64356","GHSA-p28w-6j9h-mmp2","ROOT-OS-UBUNTU-2204-CVE-2026-64356","UBUNTU-CVE-2026-64356"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel XFS","requires_auth":"low_privilege","summary":"A memory leak in the Linux kernel XFS filesystem can cause mount failures and resource exhaustion, requiring a kernel patch.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix memory leak in xfs_dqinode_metadir_create()\n\nIf xfs_metadir_create() fails in xfs_dqinode_metadir_create(), the current\ncode returns directly, leaking the allocated update and transaction state.\nIf the subsequent commit fails, the caller-owned inode reference is left\nbehind.\n\nFix this memory leak by routing the create failure path through\nxfs_metadir_cancel().  For both create and commit failures, finish and\nrelease any inode returned to the caller, mirroring the unwind pattern in\nxfs_metadir_mkdir().\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. Runtime validation\nused kprobe fault injection during `mount -o uquota` on a metadir XFS\nimage. Injecting xfs_metadir_create() reproduced the old active-update path\nthat left mount stuck later in mount setup; after this change, the same\ninjection reported cancel_hits=1 and irele_hits=1. Injecting\nxfs_metadir_commit() exercised the old inode-reference leak path; after\nthis change, it reported irele_hits=1.","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: fix memory leak in xfs_dqinode_metadir_create()","id":"CVE-2026-64356","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"xfs: fix exchmaps reservation limit check","id":"CVE-2026-64357"},"packages":[],"prev":{"headline":"bpf: Reject fragmented frames in devmap","id":"CVE-2026-64355"},"products":["Linux"],"published":"2026-07-25","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":"2026-08-17","vendors":["Linux"]},"summary":"A memory leak in the Linux kernel XFS filesystem can cause mount failures and resource exhaustion, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2026-64356/"}