CVE-2026-43141 - CVE | ByteOS Network

CVE Vulnerability Details :

CVE-2026-43141

PUBLISHED

More Info Official Page

Assigner-Linux

Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published At-06 May, 2026 | 11:27

Updated At-11 May, 2026 | 22:18

▼CVE Numbering Authority (CNA)

ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut

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

Vendor

Linux Kernel Organization, Inc

Product

Repo

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Program Files

drivers/ntb/hw/mscc/ntb_hw_switchtec.c

Default Status

unaffected

Versions

Affected

From ec0467ccbdeb69a86c8729073057bda7bce00eec before d652ef399f131fcd5f8f34266167449ee7c9e5b3 (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before 5590cd04d6845c01a6bad985a491c58af6fb5389 (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before a11d03d116eef138a7249202bd772c8e61915aec (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before d0559d07afabfddaaded6a61a16154486b956764 (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before 2e4d5e8d86a969318340be95470bb76e52392082 (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before a133e3caf844a3f56b6eef89ddaa66115874f6bd (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before 1a867d0d79a4a570a33f2f433919ad2bd7a27b67 (git)
From ec0467ccbdeb69a86c8729073057bda7bce00eec before 186615f8855a0be4ee7d3fcd09a8ecc10e783b08 (git)

Vendor

Linux Kernel Organization, Inc

Product

Repo

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Program Files

drivers/ntb/hw/mscc/ntb_hw_switchtec.c

Default Status

affected

Versions

Affected

4.15

Unaffected

From 0 before 4.15 (semver)
From 5.10.252 through 5.10.* (semver)
From 5.15.202 through 5.15.* (semver)
From 6.1.165 through 6.1.* (semver)
From 6.6.128 through 6.6.* (semver)
From 6.12.75 through 6.12.* (semver)
From 6.18.16 through 6.18.* (semver)
From 6.19.6 through 6.19.* (semver)
From 7.0 through * (original_commit_for_fix)

References

Hyperlink	Resource
https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3	N/A
https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389	N/A
https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec	N/A
https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764	N/A
https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082	N/A
https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd	N/A
https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67	N/A
https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08	N/A

Hyperlink: https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67

Resource: N/A

Hyperlink: https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08

Resource: N/A