PT-2026-42452 · Linux · Linux Kernel
Published
2026-05-21
·
Updated
2026-05-30
·
CVE-2026-43495
CVSS v3.1
8.8
High
| Vector | AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the
t7xx port enum msg handler() function where the modem-supplied port count field is used as a loop bound over port msg->data[] without verifying if the message buffer contains sufficient data. A modem sending a port count of 65535 in a 12-byte buffer can trigger a slab-out-of-bounds read of up to 262140 bytes. Additionally, in t7xx parse host rt data(), the rt feature header read lacks a remaining-buffer check before accessing data len, and feat data len is not validated against the actual remaining buffer, which can lead to out-of-bounds reads and signed integer overflow on the offset.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Related Identifiers
Affected Products
Linux Kernel