medium5.5
CVE-2024-26716
In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the func…
Impact
In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.5 before 6.6.18 from 6.7 before 6.7.6 Version 6.8 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873