n the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix zcard and zqueue hot-unplug memleak Tests with kvm and a kmemdebug kernel showed, that on hot unplug the zcard and zqueue structs for the unplugged card or queue are not properly freed because of a mismatch with get/put for the embedded kref counter. This fix now adjusts the handling of the kref counters. With init the kref counter starts with 1. This initial value needs to drop to zero with the unregister of the card or queue to trigger the release and free the object.
Configuration 1 (hide)
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08 Jan 2025, 16:50
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-401 | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/026499a9c2e002e621ad568d1378324ae97e5524 - Patch | |
| References | () https://git.kernel.org/stable/c/055a063a18bcd19b93709e3eac8078d6b2f04599 - Patch | |
| References | () https://git.kernel.org/stable/c/70fac8088cfad9f3b379c9082832b4d7532c16c2 - Patch | |
| References | () https://git.kernel.org/stable/c/971dc8706cee47393d393905d294ea47e39503d3 - Patch |
21 Nov 2024, 06:35
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/026499a9c2e002e621ad568d1378324ae97e5524 - | |
| References | () https://git.kernel.org/stable/c/055a063a18bcd19b93709e3eac8078d6b2f04599 - | |
| References | () https://git.kernel.org/stable/c/70fac8088cfad9f3b379c9082832b4d7532c16c2 - | |
| References | () https://git.kernel.org/stable/c/971dc8706cee47393d393905d294ea47e39503d3 - |
Published : 2024-02-27 19:04
Updated : 2025-01-08 16:50
NVD link : CVE-2021-46968
Mitre link : CVE-2021-46968
CVE.ORG link : CVE-2021-46968
JSON object : View
Missing Release of Memory after Effective Lifetime