CVE-2016-7911
HIGHCVSS 7.8/10EPSS 1.54%
Last modified
CVE-2016-7911 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel before 4.6.6 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.
Description
Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel before 4.6.6 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.2.85 |
| Linux | Linux Kernel | >= 3.3, < 3.10.107 |
| Linux | Linux Kernel | >= 3.11, < 3.12.70 |
| Linux | Linux Kernel | >= 3.13, < 3.16.37 |
| Linux | Linux Kernel | >= 3.17, < 3.18.38 |
| Linux | Linux Kernel | >= 3.19, < 4.1.29 |
| Linux | Linux Kernel | >= 4.2, < 4.4.17 |
| Linux | Linux Kernel | >= 4.5, < 4.6.6 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8ba8682107ee2ca3347354e018865d8e1967c5f4Issue Tracking, Patch, Third Party Advisory
- http://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.6Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/94135Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/8ba8682107ee2ca3347354e018865d8e1967c5f4Issue Tracking, Patch, Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8ba8682107ee2ca3347354e018865d8e1967c5f4Issue Tracking, Patch, Third Party Advisory
- http://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.6Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/94135Third Party Advisory, VDB Entry
- https://github.com/torvalds/linux/commit/8ba8682107ee2ca3347354e018865d8e1967c5f4Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-7911?
Race condition in the get_task_ioprio function in block/ioprio.c in the Linux kernel before 4.6.6 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted ioprio_get system call.
How severe is CVE-2016-7911?
CVE-2016-7911 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.
How do I fix CVE-2016-7911?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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