CVE-2026-43141
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ec0467ccbdeb69a86c8729073057bda7bce00eec < d652ef399f131fcd5f8f34266167449ee7c9e5b3 ec0467ccbdeb69a86c8729073057bda7bce00eec < 5590cd04d6845c01a6bad985a491c58af6fb5389 ec0467ccbdeb69a86c8729073057bda7bce00eec < a11d03d116eef138a7249202bd772c8e61915aec ec0467ccbdeb69a86c8729073057bda7bce00eec < d0559d07afabfddaaded6a61a16154486b956764 ec0467ccbdeb69a86c8729073057bda7bce00eec < 2e4d5e8d86a969318340be95470bb76e52392082 ec0467ccbdeb69a86c8729073057bda7bce00eec < a133e3caf844a3f56b6eef89ddaa66115874f6bd ec0467ccbdeb69a86c8729073057bda7bce00eec < 1a867d0d79a4a570a33f2f433919ad2bd7a27b67 ec0467ccbdeb69a86c8729073057bda7bce00eec < 186615f8855a0be4ee7d3fcd09a8ecc10e783b08
Linux / Linux
4.15
References
git.kernel.org: https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3 git.kernel.org: https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389 git.kernel.org: https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec git.kernel.org: https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764 git.kernel.org: https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082 git.kernel.org: https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd git.kernel.org: https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67 git.kernel.org: https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08