In the Linux kernel, the following vulnerability has been resolved:
USB: serial: keyspan_pda: fix information leak
The write() callback is supposed to return the number of characters accepted or a negative errno. Since the addition of write fifo support the keyspan_pda implementation will however return the number characters submitted to the device if the write urb is not already in use. If this number is larger than the number of characters passed to write(), the line discipline continues writing data from beyond the tty write buffer.
Fix the information leak by making sure that keyspan_pda_write_start() returns zero on success as intended.
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-6.12Upgrade linux-6.1Upgrade linux | Jul 28, 2026 | Jul 28, 2026 |
| Redhat_linux | — | No solution exists | Jul 31, 2026 | Jul 25, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1013-oemUpgrade linux-image-7.0.0-31-genericUpgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-gcpUpgrade linux-image-gke-64kUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-oem-26.04bUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-ibmUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-aws-64k-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-genericUpgrade linux-image-ibm-7.0Upgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-nvidiaUpgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bosUpgrade linux-image-gcp-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-gkeUpgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-realtime-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-virtual-7.0Upgrade linux-image-generic-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-aws-64kUpgrade linux-image-awsUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-realtimeUpgrade linux-image-aws-7.0Upgrade linux-image-gke-64k-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-raspiUpgrade linux-image-gke-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1012-aws-64k | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 3, 2026 | Jul 25, 2026 |
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