CVE-2026-92480

EUVD-2026-82101
In the Linux kernel, the following vulnerability has been resolved:

scsi: ufs: core: Validate string descriptors

The string descriptor length includes a two-byte header while the UTF-16
payload starts after it. utf16s_to_utf8s() expects a count of UTF-16 code
units, not bytes. Passing the payload byte count can make it read beyond
the descriptor buffer.

Validate that the payload has an even byte count, pass a code-unit count to
the converter, and allocate sufficient UTF-8 output space.

The raw string buffer starts after the descriptor header but its size is
bLength. Copying bLength bytes from that pointer can read beyond the
response buffer.

Allocate a zeroed bLength-sized buffer and copy only the UTF-16
payload. This preserves the raw buffer size consumed by the RPMB device-ID
ABI while avoiding the overread.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
vulnerable
bookworm (security)
vulnerable
forky
vulnerable
sid
7.2.6-1
fixed
trixie
vulnerable
trixie (security)
vulnerable