Use After Free in Linux
CVE-2022-49127
In the Linux kernel, the following vulnerability has been resolved: ref_tracker: implement use-after-free detection Whenever ref_tracker_dir_init() is called, mark the struct ref_tracker_dir as dead. Test the dead status from ref_tracker_alloc() and ref_tracker_free() This should detect buggy dev_put()/dev_hold() happening too late in netdevice dismantle process.
Vulnerability class: Use-After-Free
EPSS: 0.002 (15.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 4e66934eaadc83b27ada8d42b60894018f3bfabf, 5.17, 0
- Linux Linux_kernel
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-49127?
- CVE-2022-49127 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.0/10. Published 2025-02-26.
- How severe is CVE-2022-49127?
- High severity. CVSS v3 base score is 7.0 out of 10.