CVE-2026-43141
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.252
- Linux Kernel < 5.15.202
- Linux Kernel < 6.1.165
- Linux Kernel < 6.6.128
- Linux Kernel < 6.12.75
- Linux Kernel < 6.18.16
- Linux Kernel < 6.19.6
Attack profile CVSS 3.1 · 7.1
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-43141.md and follow it. Check whether this project is affected by CVE-2026-43141. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08
- https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67
- https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082
- https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389
- https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec
- https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd
- https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764
- https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3
References
- https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08
- https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67
- https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082
- https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389
- https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aec
- https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bd
- https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764
- https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3