Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 83cb2604f641cecadc275ca18adbba4bf262320f before ed85777c640cf9e6920bb1b60ed8cd48e1f4d873; affected 83cb2604f641cecadc275ca18adbba4bf262320f before 465b545d1d7ef282192ddd4439b08279bdb13f6f; affected 83cb2604f641cecadc275ca18adbba4bf262320f before 12783c0b9e2c7915a50d5ec829630ff2da50472c |
| Linux / Linux | affected 6.5; unaffected 0 before 6.5; unaffected 6.6.18 through 6.6.*; unaffected 6.7.6 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ed85777c640cf9e6920bb1b60ed8cd48e1f4d873
- https://git.kernel.org/stable/c/465b545d1d7ef282192ddd4439b08279bdb13f6f
- https://git.kernel.org/stable/c/12783c0b9e2c7915a50d5ec829630ff2da50472c
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.