5.5

CVE-2026-46101

netfilter: reject zero shift in nft_bitwise

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.6 < 5.10.258
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.209
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.175
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.140
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.86
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.27
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.4
Linux ≫ Linux Kernel Version7.1 Updaterc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.024
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/bffef0acec9c3b837a785248a893137fb7f26c95
Patch
https://git.kernel.org/stable/c/ca24f1243ad1a4d12d6a23876bbbe3ed02099853
Patch
https://git.kernel.org/stable/c/6f820139d16a4c9865a145d4a9cf9c92cc632c14
Patch
https://git.kernel.org/stable/c/f370205974f171a5868c13ff30d7642fed46e47b
Patch
https://git.kernel.org/stable/c/fe11e5c40817b84abaa5d83bfb6586d8412bfd07
Patch
https://git.kernel.org/stable/c/4fccea585631621c975883911a08d15b6671f7dc
Patch
https://git.kernel.org/stable/c/9ad26c272405f53834871cc2e46b9b5393a666c3
Patch
https://git.kernel.org/stable/c/9baa08d6b6b096fad70049533f0d705d85fdc979
Patch