usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
When the gadget endpoint is disabled or not yet configured, the ep->desc
pointer can be NULL. This leads to a NULL pointer dereference when
__cdns3_gadget_ep_queue() is called, causing a kernel crash.
Add a check to return -ESHUTDOWN if ep->desc is NULL, which is the
standard return code for unconfigured endpoints.
This prevents potential crashes when ep_queue is called on endpoints
that are not ready.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/14bf08ab2cdfcdfd3f13e799d06692a1b3e0745fhttps://git.kernel.org/stable/c/390536cc6af4ca5566bc3bf1f8b704700380cd2chttps://git.kernel.org/stable/c/3cf0580a09d417eab41ce914a11f9cde3a121871https://git.kernel.org/stable/c/3d1433fe34b224b90259e207e5389e95b504ef04https://git.kernel.org/stable/c/7f6f127b9bc34bed35f56faf7ecb1561d6b39000https://git.kernel.org/stable/c/9ab9b0e5fcdac325f950fc8b6caa08a9e22a0db9https://git.kernel.org/stable/c/d61446dfc9d387775bb1b95b081953201b9222afhttps://git.kernel.org/stable/c/fb2ad0c1334a3eccfe4ed203f9eef5a4879226f6