Use After Free Affecting python-perf 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-PYTHONPERF-7523862
- published 17 Jul 2024
- disclosed 12 Jul 2024
Introduced: 12 Jul 2024
CVE-2024-40909 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 python-perf.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-perf package and not the python-perf 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:
bpf: Fix a potential use-after-free in bpf_link_free()
After commit 1a80dbcb2dba, bpf_link can be freed by link->ops->dealloc_deferred, but the code still tests and uses link->ops->dealloc afterward, which leads to a use-after-free as reported by syzbot. Actually, one of them should be sufficient, so just call one of them instead of both. Also add a WARN_ON() in case of any problematic implementation.