7.8

CVE-2021-47525

serial: liteuart: fix use-after-free and memleak on unbind

In the Linux kernel, the following vulnerability has been resolved:

serial: liteuart: fix use-after-free and memleak on unbind

Deregister the port when unbinding the driver to prevent it from being
used after releasing the driver data and leaking memory allocated by
serial core.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.7
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.135
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/05f929b395dec8957b636ff14e66b277ed022ed9
Patch
https://git.kernel.org/stable/c/602824cf9aa9db8830ffe5cfb2cd54365cada4fe
Patch