Bug 2422704 (CVE-2025-68217) - CVE-2025-68217 kernel: Input: pegasus-notetaker - fix potential out-of-bounds access
Summary: CVE-2025-68217 kernel: Input: pegasus-notetaker - fix potential out-of-bounds...
Keywords:
Status: NEW
Alias: CVE-2025-68217
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-16 14:05 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:32 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-12-16 14:05:15 UTC
In the Linux kernel, the following vulnerability has been resolved:

Input: pegasus-notetaker - fix potential out-of-bounds access

In the pegasus_notetaker driver, the pegasus_probe() function allocates
the URB transfer buffer using the wMaxPacketSize value from
the endpoint descriptor. An attacker can use a malicious USB descriptor
to force the allocation of a very small buffer.

Subsequently, if the device sends an interrupt packet with a specific
pattern (e.g., where the first byte is 0x80 or 0x42),
the pegasus_parse_packet() function parses the packet without checking
the allocated buffer size. This leads to an out-of-bounds memory access.


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