CVE-2023-53402
kernel/printk/index.c: fix memory leak with using debugfs_lookup()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: kernel/printk/index.c: 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
- 1 day later
· 1 day later
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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 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)
- 0.15% · top 96% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 337015573718b161891a3473d25f59273f2e626b – < 2e07fa2e30d48d24a791483774a3d4b76769e0cf
- affected 337015573718b161891a3473d25f59273f2e626b – < c578a68ffcdc2e8c72556bebdaae2b7500398e81
- affected 337015573718b161891a3473d25f59273f2e626b – < 13969236b6900b5a3625ad2193569588e978f1cc
- affected 337015573718b161891a3473d25f59273f2e626b – < 55bf243c514553e907efcf2bda92ba090eca8c64
- affected 5.15
- unaffected < 5.15
- unaffected 5.15.100 – ≤ 5.15.*
- unaffected 6.1.18 – ≤ 6.1.*
- unaffected 6.2.5 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (4)
- https://git.kernel.org/stable/c/2e07fa2e30d48d24a791483774a3d4b76769e0cf (opens in a new tab)
- https://git.kernel.org/stable/c/c578a68ffcdc2e8c72556bebdaae2b7500398e81 (opens in a new tab)
- https://git.kernel.org/stable/c/13969236b6900b5a3625ad2193569588e978f1cc (opens in a new tab)
- https://git.kernel.org/stable/c/55bf243c514553e907efcf2bda92ba090eca8c64 (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)
- 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://trackcve.app/cve/CVE-2023-53402)Record last updated .