Medium 5.5Published Jul 19, 2026

CVE-2026-64147pds_core: fix debugfs_lookup dentry leak and error handling

Updated under an hour ago (Oct 26, 2026, 10:00 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jul 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2bbf2b1c20f934a054172175ccbabcc01fe69ef6 before 60ef1675b652e912f3eb064767af4432393291fd; from bc90fbe0c3182157d2be100a2f6c2edbb1820677 before 26e19622c485e53c3fdb299e822068a0542ddf0c; from bc90fbe0c3182157d2be100a2f6c2edbb1820677 before 91d13e92b983e6c6d7631012c2e20ae8057de9f2; from bc90fbe0c3182157d2be100a2f6c2edbb1820677 before d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32; from bc90fbe0c3182157d2be100a2f6c2edbb1820677 before dc416e32baaeb620b9809e9e25fc7b30889686e9; 3ffe14c36985e3174933127c9efad82ac8f3fefb; from 6.6.16 before 6.6.142; from 6.7.4 before 6.8	CNA record
linux linux_kernel linux:linux_kernel	from 6.6.16 before 6.6.142; from 6.7.4 before 6.8; from 6.8.1 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 6.8; 6.8; 6.8; and 7 more ranges	NVD

References

References

https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd	patch
https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c	patch
https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2	patch
https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32	patch
https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.