CVE-2026-43141

HIGH

Linux - Out-of-bounds Read in NTB Switchtec MW LUT Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.

References (8)

Core 8

Scores

CVSS v3 7.1
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-125
Status published
Products (27)
Linux/Linux < 4.15
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 186615f8855a0be4ee7d3fcd09a8ecc10e783b08
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 1a867d0d79a4a570a33f2f433919ad2bd7a27b67
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 2e4d5e8d86a969318340be95470bb76e52392082
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 5590cd04d6845c01a6bad985a491c58af6fb5389
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - a11d03d116eef138a7249202bd772c8e61915aec
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - a133e3caf844a3f56b6eef89ddaa66115874f6bd
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d0559d07afabfddaaded6a61a16154486b956764
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - d652ef399f131fcd5f8f34266167449ee7c9e5b3
Linux/Linux 4.15
... and 17 more
Published May 06, 2026
Tracked Since May 06, 2026