CVEvulnerability

CVE-2026-64240

5.5 MEDIUM Published 2026-07-24 Modified 2026-08-13 Official page ↗
Status
Analyzed
Published
2026-07-24
Last modified
2026-08-13
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Affected configurations

• linux linux kernel (>= 6.6.140 < 6.6.143) • linux linux kernel (>= 6.12.86 < 6.12.93) • linux linux kernel (>= 6.18.27 < 6.18.35) • linux linux kernel (>= 7.0.4 < 7.0.12) • linux linux kernel 7.1

References