What’s Vulnerable › Vulnerabilities

CVE-2016-7910

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-11-16 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel before 4.7.1 allows local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed.

Affected products

• Linux kernel: before 3.2.84; from 3.3 before 3.10.103; from 3.11 before 3.12.63; from 3.13 before 3.14.76; from 3.15 before 3.16.39; from 3.17 before 3.18.40 — fixed in 3.10.103, 3.12.63, 3.14.76, 3.16.39, 3.18.40, 3.2.84

How to fix

Upgrade to a fixed version: Linux kernel 3.10.103, 3.12.63, 3.14.76, 3.16.39. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77da160530dd1dc94f6ae15a981f24e5f0021e84
• http://source.android.com/security/bulletin/2016-11-01.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.1
• http://www.securityfocus.com/bid/94135
• https://access.redhat.com/errata/RHSA-2017:0892
• https://access.redhat.com/errata/RHSA-2017:1297
• https://access.redhat.com/errata/RHSA-2017:1298
• https://access.redhat.com/errata/RHSA-2017:1308
• https://github.com/torvalds/linux/commit/77da160530dd1dc94f6ae15a981f24e5f0021e84
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77da160530dd1dc94f6ae15a981f24e5f0021e84
• http://source.android.com/security/bulletin/2016-11-01.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.1

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