In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: core: Do core softreset when switch mode
According to the programming guide, to switch mode for DRD controller, the driver needs to do the following.
To switch from device to host: 1. Reset controller with GCTL.CoreSoftReset 2. Set GCTL.PrtCapDir(host mode) 3. Reset the host with USBCMD.HCRESET 4. Then follow up with the initializing host registers sequence
To switch from host to device: 1. Reset controller with GCTL.CoreSoftReset 2. Set GCTL.PrtCapDir(device mode) 3. Reset the device with DCTL.CSftRst 4. Then follow up with the initializing registers sequence
Currently we're missing step 1) to do GCTL.CoreSoftReset and step 3) of switching from host to device. John Stult reported a lockup issue seen with HiKey960 platform without these steps[1]. Similar issue is observed with Ferry's testing platform[2].
So, apply the required steps along with some fixes to Yu Chen's and John Stultz's version. The main fixes to their versions are the missing wait for clocks synchronization before clearing GCTL.CoreSoftReset and only apply DCTL.CSftRst when switching from host to device.
[1] https://lore.kernel.org/linux-usb/[email protected]/ [2] https://lore.kernel.org/linux-usb/[email protected]/
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 30, 2024 | Feb 27, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 27, 2024 |
| Suse | — | Upgrade kernel-default-manUpgrade kernel-obs-buildUpgrade kernel-default-develUpgrade kernel-default-extraUpgrade kernel-default-baseUpgrade kernel-macrosUpgrade kernel-azureUpgrade kernel-docsUpgrade kernel-azure-baseUpgrade kernel-defaultUpgrade kernel-source-azureUpgrade kernel-azure-develUpgrade kernel-symsUpgrade kernel-devel-azureUpgrade kernel-syms-azureUpgrade kernel-sourceUpgrade kernel-devel | Aug 9, 2024 | Feb 27, 2024 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Feb 27, 2024 |
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