HID: intel-thc-hid: intel-quickspi: bound GET_REPORT response to the caller buffer

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Summary

CVECVE-2026-89619
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:47 UTC
Updated2026-09-11 20:19:47 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: HID: intel-thc-hid: intel-quickspi: bound GET_REPORT response to the caller buffer quickspi_hid_raw_request() receives the caller's buffer length in len, but quickspi_get_report() never sees it and copies the whole device-supplied response into buf regardless: memcpy(buf, qsdev->report_buf, qsdev->report_len); qsdev->report_len comes from the input report the touch controller returns, while buf is sized to whatever the caller asked hidraw for through HIDIOCGFEATURE or HIDIOCGINPUT. A response larger than that overflows buf with device-controlled content. The intel-quicki2c sibling already passes the caller length down to quicki2c_get_report() and validates the response against it before the copy. Do the same here.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 4138f21115aec3ebae7805ec3407c72d93558023 72706b44b665679d7d60a488d8776a911f1a93f3 git Not specified
CNA Linux Linux affected 4138f21115aec3ebae7805ec3407c72d93558023 54e0bafc0653bdf2a6c5f5f8ad8787a820d98663 git Not specified
CNA Linux Linux affected 4138f21115aec3ebae7805ec3407c72d93558023 035ec4a71cb8020a927c123bbe75c2f88d614986 git Not specified
CNA Linux Linux affected 6.14 Not specified
CNA Linux Linux unaffected 6.14 semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/035ec4a71cb8020a927c123bbe75c2f88d614986 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/72706b44b665679d7d60a488d8776a911f1a93f3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/54e0bafc0653bdf2a6c5f5f8ad8787a820d98663 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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