Use After Free in Linux Kernel

CVE-2016-9120

Race condition in the ion_ioctl function in drivers/staging/android/ion/ion.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) by calling ION_IOC_FREE on two CPUs at the same time.

EPSS: 0.017 (75.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-9120?
CVE-2016-9120 is a high-severity vulnerability in Linux Kernel, classified under CWE-264. CVSS score: 7.8/10. Published 2016-12-08.
How severe is CVE-2016-9120?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2016-9120 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.