CVE-2024-26715

2024-04-0300:00:00

ubuntu.com

usb

vulnerability

linux

kernel

fixed

null pointer

dereference

AI Score

7.7

Confidence

High

EPSS

Percentile

15.5%

JSON

In the Linux kernel, the following vulnerability has been resolved: usb:
dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend In
current scenario if Plug-out and Plug-In performed continuously there could
be a chance while checking for dwc->gadget_driver in dwc3_gadget_suspend, a
NULL pointer dereference may occur. Call Stack: CPU1: CPU2:
gadget_unbind_driver dwc3_suspend_common dwc3_gadget_stop
dwc3_gadget_suspend dwc3_disconnect_gadget CPU1 basically clears the
variable and CPU2 checks the variable. Consider CPU1 is running and right
before gadget_driver is cleared and in parallel CPU2 executes
dwc3_gadget_suspend where it finds dwc->gadget_driver which is not NULL and
resumes execution and then CPU1 completes execution. CPU2 executes
dwc3_disconnect_gadget where it checks dwc->gadget_driver is already NULL
because of which the NULL pointer deference occur.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< 5.15.0-106.116UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-44.44UNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1061.67UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1061.67~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< 6.5.0-1023.23~22.04.1UNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1063.72UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1063.72~20.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-106.116	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-44.44	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1061.67	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1061.67~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< 6.5.0-1023.23~22.04.1	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1063.72	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< 5.15.0-1063.72~20.04.1	UNKNOWN