CVE-2026-64240

Description

In the Linux kernel, the following vulnerability has been resolved: media: rc: igorplugusb: fix control request setup packet Commit eac69475b01f ("media: rc: igorplugusb: heed coherency rules") changed the control request storage from an embedded struct to an allocated pointer so it can obey DMA coherency rules. However, the driver still passes &ir->request to usb_fill_control_urb(). That points the URB setup packet at the pointer field itself rather than at the allocated struct usb_ctrlrequest. USB core then interprets pointer bytes as the setup packet. This can produce an invalid bRequestType and trigger the control direction warning reported by syzbot: usb 2-1: BOGUS control dir, pipe 80003580 doesn't match bRequestType 0 Pass ir->request itself as the setup packet.

References

• https://git.kernel.org/stable/c/060fca8e098387f949e4eedaf215d952e477ac12
• https://git.kernel.org/stable/c/0d880d2db9856e94127ab09331363bef59f98005
• https://git.kernel.org/stable/c/171022c7d594c133a45f92357a2a91475edabe20
• https://git.kernel.org/stable/c/2243ad78ce64d344754260533ae7730c2174a34a
• https://git.kernel.org/stable/c/5cc3f6db72f77d1a8f7f1cf4ac01803927ffdf15