QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2026-46101

Back to search

CVE-2026-46101

Published: May 27, 2026

Modified: Jun 1, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
567d746b55bc66d3800c9ae91d50f0c5deb2fd93 - < 9baa08d6b6b096fad70049533f0d705d85fdc979
affected
567d746b55bc66d3800c9ae91d50f0c5deb2fd93 - < 4fccea585631621c975883911a08d15b6671f7dc
affected
567d746b55bc66d3800c9ae91d50f0c5deb2fd93 - < 9ad26c272405f53834871cc2e46b9b5393a666c3
affected
567d746b55bc66d3800c9ae91d50f0c5deb2fd93 - < bffef0acec9c3b837a785248a893137fb7f26c95
affected
567d746b55bc66d3800c9ae91d50f0c5deb2fd93 - < ca24f1243ad1a4d12d6a23876bbbe3ed02099853

+3 more versions

Linux

Linux

affected
5.6
unaffected
0 - < 5.6
unaffected
5.10.258 - <= 5.10.*
unaffected
5.15.209 - <= 5.15.*
unaffected
6.1.175 - <= 6.1.*

+5 more versions

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now