CVE-2026-64147pds_core: fix debugfs_lookup dentry leak and error handling
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix debugfs_lookup dentry leak and error handling debugfs_lookup() returns a dentry with an elevated reference count that must be released with dput(). The current code discards the returned dentry without calling dput(), causing a reference leak on every firmware reset recovery. Additionally, when CONFIG_DEBUG_FS is disabled, debugfs_lookup() returns ERR_PTR(-ENODEV), not NULL. The current check passes for error pointers and would call dput() on an invalid pointer, causing a crash.
Timeline
ID reserved
By Linux
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 2bbf2b1c20f934a054172175ccbabcc01fe69ef6 – < 60ef1675b652e912f3eb064767af4432393291fd
- affected bc90fbe0c3182157d2be100a2f6c2edbb1820677 – < 26e19622c485e53c3fdb299e822068a0542ddf0c
- affected bc90fbe0c3182157d2be100a2f6c2edbb1820677 – < 91d13e92b983e6c6d7631012c2e20ae8057de9f2
- affected bc90fbe0c3182157d2be100a2f6c2edbb1820677 – < d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32
- affected bc90fbe0c3182157d2be100a2f6c2edbb1820677 – < dc416e32baaeb620b9809e9e25fc7b30889686e9
- affected 3ffe14c36985e3174933127c9efad82ac8f3fefb
- affected 6.6.16 – < 6.6.142
- affected 6.7.4 – < 6.8
- affected 6.8
- unaffected < 6.8
- unaffected 6.6.142 – ≤ 6.6.*
- unaffected 6.12.92 – ≤ 6.12.*
- unaffected 6.18.34 – ≤ 6.18.*
- unaffected 7.0.11 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References5
- https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd (opens in a new tab)
- https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c (opens in a new tab)
- https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2 (opens in a new tab)
- https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32 (opens in a new tab)
- https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-45832 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64147)Record last updated .