CVE-2016-10044

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-02-07 · updated 2026-06-17
Weakness: CWE-264

Description

The aio_mount function in fs/aio.c in the Linux kernel before 4.7.7 does not properly restrict execute access, which makes it easier for local users to bypass intended SELinux W^X policy restrictions, and consequently gain privileges, via an io_setup system call.

Affected products

Android: through 7.1.1
Linux kernel: before 3.16.43; from 3.17 before 4.4.24; from 4.5 before 4.7.7 — fixed in 3.16.43, 4.4.24, 4.7.7

How to fix

Upgrade to a fixed version: Linux kernel 3.16.43, 4.4.24, 4.7.7. Check the vendor advisory for mitigations.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=22f6b4d34fcf039c63a94e7670e0da24f8575a5a
http://source.android.com/security/bulletin/2017-02-01.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.7
http://www.securityfocus.com/bid/96122
http://www.securitytracker.com/id/1037798
https://github.com/torvalds/linux/commit/22f6b4d34fcf039c63a94e7670e0da24f8575a5a
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=22f6b4d34fcf039c63a94e7670e0da24f8575a5a
http://source.android.com/security/bulletin/2017-02-01.html
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.7
http://www.securityfocus.com/bid/96122
http://www.securitytracker.com/id/1037798
https://github.com/torvalds/linux/commit/22f6b4d34fcf039c63a94e7670e0da24f8575a5a

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