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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08 Patch
- git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67 Patch
- git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082 Patch
- git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389 Patch
- git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec Patch
- git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd Patch
- git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764 Patch
- git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3 Patch
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 13 November 2026
- CWE
- CWE-125
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