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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 3, 2024 |
| Ubuntu | — | Upgrade linux-image-starfiveUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcpUpgrade linux-image-6.5.0-1026-oracle-64kUpgrade linux-image-nvidia-6.5Upgrade linux-image-6.5.0-44-lowlatency-64kUpgrade linux-image-awsUpgrade linux-image-oem-22.04bUpgrade linux-image-6.5.0-1027-oemUpgrade linux-image-6.5.0-1026-oracleUpgrade linux-image-raspiUpgrade linux-image-oracle-64kUpgrade linux-image-6.5.0-1023-nvidiaUpgrade linux-image-6.5.0-1024-azureUpgrade linux-image-azure-fdeUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.5.0-1024-gcpUpgrade linux-image-oracleUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.5.0-1017-starfiveUpgrade linux-image-6.5.0-1023-nvidia-64kUpgrade linux-image-6.5.0-44-genericUpgrade linux-image-kvmUpgrade linux-image-nvidia-64k-6.5Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-azureUpgrade linux-image-oem-22.04dUpgrade linux-image-6.5.0-1024-azure-fdeUpgrade linux-image-6.5.0-44-generic-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-oem-22.04aUpgrade linux-image-virtualUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-generic-64kUpgrade linux-image-6.5.0-44-lowlatencyUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.5.0-1023-awsUpgrade linux-image-6.5.0-1020-raspiUpgrade linux-image-generic-lpaeUpgrade linux-image-genericUpgrade linux-image-oem-22.04Upgrade linux-image-oem-22.04c | Jul 15, 2024 | Apr 3, 2024 |
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