PT-2026-61464 · Linux · Linux

CVE-2026-64147 · Published 2026-07-19 · Updated 2026-07-19

NVD

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.

Related Identifiers

CVE-2026-64147

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-64147 · Security Note
• https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd · Note
• https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2 · Note
• https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32 · Note
• https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c · Note
• https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9 · Note