In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: u_serial: Add null pointer check in gserial_resume
Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this.
Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.
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 | Oct 6, 2025 | Oct 6, 2025 |
| Ubuntu | — | Upgrade linux-aws-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-gcpUpgrade linux-raspiUpgrade linux-hwe-5.15Upgrade linux-bluefieldUpgrade linux-awsUpgrade linux-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-5.15Upgrade linux-azure-5.15Upgrade linux-riscv-5.15Upgrade linux-nvidiaUpgrade linux-intel-iot-realtimeUpgrade linux-azureUpgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-oracle-5.15Upgrade linux-lowlatencyUpgrade linux-gkeopUpgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-gke | Oct 10, 2025 | Oct 4, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Oct 4, 2025 |
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