CVE-2026-43141
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/186615f8855a0be4ee7d3fcd09a8ecc10e783b08Patch
- https://git.kernel.org/stable/c/1a867d0d79a4a570a33f2f433919ad2bd7a27b67Patch
- https://git.kernel.org/stable/c/2e4d5e8d86a969318340be95470bb76e52392082Patch
- https://git.kernel.org/stable/c/5590cd04d6845c01a6bad985a491c58af6fb5389Patch
- https://git.kernel.org/stable/c/a11d03d116eef138a7249202bd772c8e61915aecPatch
- https://git.kernel.org/stable/c/a133e3caf844a3f56b6eef89ddaa66115874f6bdPatch
- https://git.kernel.org/stable/c/d0559d07afabfddaaded6a61a16154486b956764Patch
- https://git.kernel.org/stable/c/d652ef399f131fcd5f8f34266167449ee7c9e5b3Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.