Bug 2554959 (CVE-2026-98597) - CVE-2026-98597 kernel: net: usb: sr9700: include receive overhead in the length check
Summary: CVE-2026-98597 kernel: net: usb: sr9700: include receive overhead in the leng...
Keywords:
Status: NEW
Alias: CVE-2026-98597
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: 2026-10-18 15:35 UTC by OSIDB Bzimport
Modified: 2026-10-20 04:57 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-18 15:35:47 UTC
In the Linux kernel, the following vulnerability has been resolved:

net: usb: sr9700: include receive overhead in the length check

The receive fixup subtracts the Ethernet CRC from the reported packet
length, but compares that payload length against the whole remaining
receive buffer. The following copy starts after the three-byte header,
and the cursor advance consumes both that header and the four-byte CRC.

Require the payload to fit after SR_RX_OVERHEAD before copying it or
advancing to the next packet. The loop already ensures that the
remaining buffer is larger than the overhead, so the subtraction is
safe.

The issue was found by our static-analysis tool.


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