Description
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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
83cb2604f641cecadc275ca18adbba4bf262320f to < ed85777c640cf9e6920bb1b60ed8cd48e1f4d873affected83cb2604f641cecadc275ca18adbba4bf262320f to < 465b545d1d7ef282192ddd4439b08279bdb13f6faffected83cb2604f641cecadc275ca18adbba4bf262320f to < 12783c0b9e2c7915a50d5ec829630ff2da50472caffected
Linux Linux
Default version status: affected
6.5affected0 to < 6.5unaffected6.6.18 to ≤ 6.6.*unaffected6.7.6 to ≤ 6.7.*unaffected6.8 to ≤ *unaffected