{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64356", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.782Z", "datePublished": "2026-07-25T08:50:14.049Z", "dateUpdated": "2026-07-25T08:50:14.049Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-25T08:50:14.049Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/libxfs/xfs_dquot_buf.c"], "versions": [{"version": "e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84", "lessThan": "c3d3d2212c2966973dd7d603c6c6e6ed6fc7fbe1", "status": "affected", "versionType": "git"}, {"version": "e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84", "lessThan": "06a2e6dbaa26c0740ac76dfa66b0aedc78d05820", "status": "affected", "versionType": "git"}, {"version": "e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84", "lessThan": "45de375b25060edf46e20abb36521ba530336ceb", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/xfs/libxfs/xfs_dquot_buf.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c3d3d2212c2966973dd7d603c6c6e6ed6fc7fbe1"}, {"url": "https://git.kernel.org/stable/c/06a2e6dbaa26c0740ac76dfa66b0aedc78d05820"}, {"url": "https://git.kernel.org/stable/c/45de375b25060edf46e20abb36521ba530336ceb"}], "title": "xfs: fix memory leak in xfs_dqinode_metadir_create()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84,c3d3d2212c2966973dd7d603c6c6e6ed6fc7fbe1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84,06a2e6dbaa26c0740ac76dfa66b0aedc78d05820)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e80fbe1ad8eff7d7d1363e14f1e493d84dd37c84,45de375b25060edf46e20abb36521ba530336ceb)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T16:30:06.001627+00:00", "updated": "2026-07-25T16:30:06.001664+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}