Bug 2502371 (CVE-2026-63957) - CVE-2026-63957 kernel: USB: serial: safe_serial: fix memory corruption with small endpoint
Summary: CVE-2026-63957 kernel: USB: serial: safe_serial: fix memory corruption with s...
Keywords:
Status: NEW
Alias: CVE-2026-63957
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 16:04 UTC by OSIDB Bzimport
Modified: 2026-07-21 22:45 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-07-19 16:04:30 UTC
In the Linux kernel, the following vulnerability has been resolved:

USB: serial: safe_serial: fix memory corruption with small endpoint

Make sure that the bulk-out buffer size is at least eight bytes to avoid
user-controlled slab corruption in "safe" mode should a malicious device
report a smaller size.


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