5.5

CVE-2023-53173

tty: pcn_uart: fix memory leak with using debugfs_lookup()

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.15.100
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.18
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.041
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/cf042964c2fa72950bbbf25b2cdd732b873e89db
Patch
https://git.kernel.org/stable/c/4459d1e7bd0421b3b6fcd745773d8823f71615ef
Patch
https://git.kernel.org/stable/c/139769c4bd8273b5e3f85ea474aa37018fe7e436
Patch
https://git.kernel.org/stable/c/04a189c720aa2b6091442113ce9b9bc93552dff8
Patch