CVE-2026-43141

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