Bug 2525498 (CVE-2026-80604) - CVE-2026-80604 kernel: HID: core: Fix OOB read in hid_get_report for numbered reports
Summary: CVE-2026-80604 kernel: HID: core: Fix OOB read in hid_get_report for numbered...
Keywords:
Status: NEW
Alias: CVE-2026-80604
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-28 07:48 UTC by OSIDB Bzimport
Modified: 2026-08-31 09:31 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-28 07:48:06 UTC
In the Linux kernel, the following vulnerability has been resolved:

HID: core: Fix OOB read in hid_get_report for numbered reports

When a caller passes a size of 0 to hid_report_raw_event() for a
numbered report, the function originally called hid_get_report() before
performing any size validation.

Inside hid_get_report(), if the report is numbered (report_enum->numbered
is true), it unconditionally dereferences data[0] to extract the report ID.
With a size of 0, this results in an out-of-bounds read or kernel panic.

Fix this by moving the numbered report size validation check before the
call to hid_get_report(), ensuring that size is at least 1 before
dereferencing the data pointer.

Comment 1 Mauro Matteo Cascella 2026-08-31 09:19:32 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082832-CVE-2026-80604-5909@gregkh/T


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