CVE-2026-64147
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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 2bbf2b1c20f934a054172175ccbabcc01fe69ef6 < 60ef1675b652e912f3eb064767af4432393291fd, bc90fbe0c3182157d2be100a2f6c2edbb1820677 < 26e19622c485e53c3fdb299e822068a0542ddf0c, bc90fbe0c3182157d2be100a2f6c2edbb1820677 < 91d13e92b983e6c6d7631012c2e20ae8057de9f2, bc90fbe0c3182157d2be100a2f6c2edbb1820677 < d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32 … |
| Linux | Linux | — | 6.8, 0 < 6.8, 6.6.142 ≤ 6.6.*, 6.12.92 ≤ 6.12.* … |
References (5)
- https://git.kernel.org/stable/c/60ef1675b652e912f3eb064767af4432393291fd
- https://git.kernel.org/stable/c/26e19622c485e53c3fdb299e822068a0542ddf0c
- https://git.kernel.org/stable/c/91d13e92b983e6c6d7631012c2e20ae8057de9f2
- https://git.kernel.org/stable/c/d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32
- https://git.kernel.org/stable/c/dc416e32baaeb620b9809e9e25fc7b30889686e9