{"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"}}}}