CVE-2017-8071

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-04-23 · updated 2026-06-17
Weakness: CWE-404

Description

drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 uses a spinlock without considering that sleeping is possible in a USB HID request callback, which allows local users to cause a denial of service (deadlock) via unspecified vectors.

Affected products

Linux kernel: 4.9, 4.9.1, 4.9.2, 4.9.3, 4.9.4, 4.9.5 (+2)

References

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9
http://www.openwall.com/lists/oss-security/2017/04/16/4
http://www.securityfocus.com/bid/97991
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654
https://github.com/torvalds/linux/commit/7a7b5df84b6b4e5d599c7289526eed96541a0654
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9
http://www.openwall.com/lists/oss-security/2017/04/16/4
http://www.securityfocus.com/bid/97991
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7a7b5df84b6b4e5d599c7289526eed96541a0654
https://github.com/torvalds/linux/commit/7a7b5df84b6b4e5d599c7289526eed96541a0654

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