In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_fs: Initialize epfile->in early to fix endpoint direction checks
When parsing endpoint descriptors, ffs_data_got_descs() generates the eps_addrmap which contains the endpoint direction. However, epfile->in was previously only populated in ffs_func_eps_enable() which executes upon USB host connection. As a result, early userspace ioctls like FUNCTIONFS_DMABUF_ATTACH that run before the host connects would see epfile->in as 0, leading to incorrect DMA directions.
By moving the initialization to ffs_epfiles_create(), epfile->in is accurate before userspace opens the endpoint files.
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 | Jul 28, 2026 | Jul 28, 2026 |
| Ubuntu | — | Upgrade linux-image-generic-64k-7.0Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1013-oemUpgrade linux-image-gcp-7.0Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-oem-26.04bUpgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-gcpUpgrade linux-image-virtualUpgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-gkeUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-raspi-realtimeUpgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-virtual-7.0Upgrade linux-image-7.0.0-31-genericUpgrade linux-image-nvidia-7.0Upgrade linux-image-generic-64kUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-1012-awsUpgrade linux-image-ibmUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-genericUpgrade linux-image-gcp-64kUpgrade linux-image-gke-7.0Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-raspiUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-nvidia-bosUpgrade linux-image-oem-26.04Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-oem-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-gke-64kUpgrade linux-image-nvidiaUpgrade linux-image-aws-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-7.0.0-2018-nvidia-bos | 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 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub