{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64147", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.037Z", "datePublished": "2026-07-19T15:40:38.198Z", "dateUpdated": "2026-07-19T15:40:38.198Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:40:38.198Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: fix debugfs_lookup dentry leak and error handling\n\ndebugfs_lookup() returns a dentry with an elevated reference count that\nmust be released with dput(). The current code discards the returned\ndentry without calling dput(), causing a reference leak on every\nfirmware reset recovery.\n\nAdditionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup()\nreturns ERR_PTR(-ENODEV), not NULL. The current check passes for error\npointers and would call dput() on an invalid pointer, causing a crash."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/amd/pds_core/debugfs.c"], "versions": [{"version": "2bbf2b1c20f934a054172175ccbabcc01fe69ef6", "lessThan": "60ef1675b652e912f3eb064767af4432393291fd", "status": "affected", "versionType": "git"}, {"version": "bc90fbe0c3182157d2be100a2f6c2edbb1820677", "lessThan": "26e19622c485e53c3fdb299e822068a0542ddf0c", "status": "affected", "versionType": "git"}, {"version": "bc90fbe0c3182157d2be100a2f6c2edbb1820677", "lessThan": "91d13e92b983e6c6d7631012c2e20ae8057de9f2", "status": "affected", "versionType": "git"}, {"version": "bc90fbe0c3182157d2be100a2f6c2edbb1820677", "lessThan": "d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32", "status": "affected", "versionType": "git"}, {"version": "bc90fbe0c3182157d2be100a2f6c2edbb1820677", "lessThan": "dc416e32baaeb620b9809e9e25fc7b30889686e9", "status": "affected", "versionType": "git"}, {"version": "3ffe14c36985e3174933127c9efad82ac8f3fefb", "status": "affected", "versionType": "git"}, {"version": "6.6.16", "lessThan": "6.6.142", "status": "affected", "versionType": "semver"}, {"version": "6.7.4", "lessThan": "6.8", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/amd/pds_core/debugfs.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.6.16", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd"}, {"url": "https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c"}, {"url": "https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2"}, {"url": "https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32"}, {"url": "https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9"}], "title": "pds_core: fix debugfs_lookup dentry leak and error handling", "x_generator": {"engine": "bippy-1.2.0"}}}}

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