Use After Free Affecting kernel-rt-trace-devel package, versions *
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-6604645
- published 12 Apr 2024
- disclosed 10 Apr 2024
Introduced: 10 Apr 2024
CVE-2021-47195 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7
kernel-rt-trace-devel
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel
package and not the kernel-rt-trace-devel
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
spi: fix use-after-free of the add_lock mutex
Commit 6098475d4cb4 ("spi: Fix deadlock when adding SPI controllers on SPI buses") introduced a per-controller mutex. But mutex_unlock() of said lock is called after the controller is already freed:
spi_unregister_controller(ctlr) -> put_device(&ctlr->dev) -> spi_controller_release(dev) -> mutex_unlock(&ctrl->add_lock)
Move the put_device() after the mutex_unlock().