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Linux Linux kernelUse After Free

Risk 90
Severity
9.8
Use After Free
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Last updated 4 July 2026

1 / 3
Source: Ubuntu
First published (updated )
CVE-2017-18017

Novell Suse Linux Enterprise Software Development KitThe hub_activate function in drivers/usb/core/hub.c in the Linux kernel before 4.3.5 does not proper…

Risk 65
Severity
7.2
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Quickly plugging in and unplugging a USB hub can lead to a null pointer dereference in kernel (local denial of service) or the USB port to which the hub is connected becomes unusable, for kernel versions 2.6.32 < 4.4. The issue occurs when the USB hub gets disconnected before or while the routine for USB hub activation is running - hubactivate() function.

Upstream patch:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e50293ef9775c5

External references:

http://www.spinics.net/lists/linux-usb/msg132311.html

CVE-ID request and assignment:

http://seclists.org/oss-sec/2016/q1/404

http://seclists.org/oss-sec/2016/q1/413

1 / 2
Source: Red Hat
First published (updated )
CVE-2015-8816

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