CVE-2023-53173tty: pcn_uart: fix memory leak with using debugfs_lookup()
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% 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: tty: pcn_uart: fix memory leak with using debugfs_lookup() When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
Timeline
ID reserved
By Linux
Published
- 8 months later
· 8 months later
Record updated
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)
- 0.16% · top 95% of all CVEs (13 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 4dec5f1af694526db760dfbb47211236e556e27c – < cf042964c2fa72950bbbf25b2cdd732b873e89db
- affected 4dec5f1af694526db760dfbb47211236e556e27c – < 4459d1e7bd0421b3b6fcd745773d8823f71615ef
- affected 4dec5f1af694526db760dfbb47211236e556e27c – < 139769c4bd8273b5e3f85ea474aa37018fe7e436
- affected 4dec5f1af694526db760dfbb47211236e556e27c – < 04a189c720aa2b6091442113ce9b9bc93552dff8
- affected 5.13
- unaffected < 5.13
- unaffected 5.15.100 – ≤ 5.15.*
- unaffected 6.1.18 – ≤ 6.1.*
- unaffected 6.2.5 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/cf042964c2fa72950bbbf25b2cdd732b873e89db (opens in a new tab)
- https://git.kernel.org/stable/c/4459d1e7bd0421b3b6fcd745773d8823f71615ef (opens in a new tab)
- https://git.kernel.org/stable/c/139769c4bd8273b5e3f85ea474aa37018fe7e436 (opens in a new tab)
- https://git.kernel.org/stable/c/04a189c720aa2b6091442113ce9b9bc93552dff8 (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-2023-59803 (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-2023-53173)Record last updated .