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 products
linux: linux kernel
References8
- git.kernel.org/stable/c/060fca8e098387f949e4eedaf215d952e477ac12 Patch
- git.kernel.org/stable/c/0d880d2db9856e94127ab09331363bef59f98005 Patch
- git.kernel.org/stable/c/171022c7d594c133a45f92357a2a91475edabe20 Patch
- git.kernel.org/stable/c/2243ad78ce64d344754260533ae7730c2174a34a Patch
- git.kernel.org/stable/c/5cc3f6db72f77d1a8f7f1cf4ac01803927ffdf15 Patch
- git.kernel.org/stable/c/aa22590a16e51455c6db802c774b31aadc604a9a Patch
- git.kernel.org/stable/c/e823e4294511989f5962e7ad85bf4d179ba74f52 Patch
- git.kernel.org/stable/c/f33b5a61673bd220fdaaf4202cf1013d6d66c943 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 14 November 2026
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