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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | bc04b8633b375af6ac8a8bb615258b80fe06cdaa < e823e4294511989f5962e7ad85bf4d179ba74f52, 81f0fb813e4bf28b3ca28dc218938a32eb48f740 < 2243ad78ce64d344754260533ae7730c2174a34a, 0e84aa8fc23c7578f105e3a2160f9d0aa2bed79a < aa22590a16e51455c6db802c774b31aadc604a9a, 18d6a7c9e4e63c57157e9a57dd9bf3cd38e4c45a < 060fca8e098387f949e4eedaf215d952e477ac12 … |
| Linux | Linux | — | 6.6.140 < 6.6.143, 6.12.86 < 6.12.93, 6.18.27 < 6.18.35, 7.0.4 < 7.0.12 |
References (8)
- https://git.kernel.org/stable/c/e823e4294511989f5962e7ad85bf4d179ba74f52
- https://git.kernel.org/stable/c/2243ad78ce64d344754260533ae7730c2174a34a
- https://git.kernel.org/stable/c/aa22590a16e51455c6db802c774b31aadc604a9a
- https://git.kernel.org/stable/c/060fca8e098387f949e4eedaf215d952e477ac12
- https://git.kernel.org/stable/c/0d880d2db9856e94127ab09331363bef59f98005
- https://git.kernel.org/stable/c/f33b5a61673bd220fdaaf4202cf1013d6d66c943
- https://git.kernel.org/stable/c/5cc3f6db72f77d1a8f7f1cf4ac01803927ffdf15
- https://git.kernel.org/stable/c/171022c7d594c133a45f92357a2a91475edabe20