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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-46101 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/6f820139d16a4c9865a145d4a9cf9c92cc632c14 kernel.org
https://git.kernel.org/stable/c/bffef0acec9c3b837a785248a893137fb7f26c95 kernel.org
https://git.kernel.org/stable/c/ca24f1243ad1a4d12d6a23876bbbe3ed02099853 kernel.org
https://git.kernel.org/stable/c/f370205974f171a5868c13ff30d7642fed46e47b kernel.org
https://git.kernel.org/stable/c/fe11e5c40817b84abaa5d83bfb6586d8412bfd07 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-46101
NVD Published Date:
05/27/2026
NVD Last Modified:
05/27/2026
Source:
kernel.org