CVEvulnerability
CVE-2026-64240
5.5 MEDIUM
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
- https://git.kernel.org/stable/c/060fca8e098387f949e4eedaf215d952e477ac12 Patch
- https://git.kernel.org/stable/c/0d880d2db9856e94127ab09331363bef59f98005 Patch
- https://git.kernel.org/stable/c/171022c7d594c133a45f92357a2a91475edabe20 Patch
- https://git.kernel.org/stable/c/2243ad78ce64d344754260533ae7730c2174a34a Patch
- https://git.kernel.org/stable/c/5cc3f6db72f77d1a8f7f1cf4ac01803927ffdf15 Patch
- https://git.kernel.org/stable/c/aa22590a16e51455c6db802c774b31aadc604a9a Patch
- https://git.kernel.org/stable/c/e823e4294511989f5962e7ad85bf4d179ba74f52 Patch
- https://git.kernel.org/stable/c/f33b5a61673bd220fdaaf4202cf1013d6d66c943 Patch