CVE-2026-64147
Last modified
CVE-2026-64147 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 2bbf2b1c20f934a054172175ccbabcc01fe69ef6, < 60ef1675b652e912f3eb064767af4432393291fd; >= bc90fbe0c3182157d2be100a2f6c2edbb1820677, < 26e19622c485e53c3fdb299e822068a0542ddf0c; >= bc90fbe0c3182157d2be100a2f6c2edbb1820677, < 91d13e92b983e6c6d7631012c2e20ae8057de9f2; >= bc90fbe0c3182157d2be100a2f6c2edbb1820677, < d7f4dd4c8fb380898fef7a77d48fce7ccdb4fc32; >= bc90fbe0c3182157d2be100a2f6c2edbb1820677, < dc416e32baaeb620b9809e9e25fc7b30889686e9; 3ffe14c36985e3174933127c9efad82ac8f3fefb; >= 6.6.16, < 6.6.142; >= 6.7.4, < 6.8 |
| Linux | Linux | 6.8 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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