CVE-2026-46026

MEDIUM

net: qrtr: ns: Limit the maximum number of lookups

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Limit the maximum number of lookups Current code does no bound checking on the number of lookups a client can perform. Though the code restricts the lookups to local clients, there is still a possibility of a malicious local client sending a flood of NEW_LOOKUP messages over the same socket. Fix this issue by limiting the maximum number of lookups to 64 globally. Since the nameserver allows only atmost one local observer, this global lookup count will ensure that the lookups stay within the limit. Note that, limit of 64 is chosen based on the current platform requirements. If requirement changes in the future, this limit can be increased.

Scores

CVSS v3 5.5
EPSS 0.0013
EPSS Percentile 2.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (27)
linux/Kernel 5.11.0 - 5.15.210linux
linux/Kernel 5.16.0 - 6.1.176linux
linux/Kernel 5.7.0 - 5.10.259linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 5.7
Linux/Linux 0c2204a4ad710d95d348ea006f14ba926e842ffd - 0dbec101a7076e9b1e4bd1876f7cf07c56ff4ce3
Linux/Linux 0c2204a4ad710d95d348ea006f14ba926e842ffd - 20855cef7e659ef84ac73251256fa530819b2346
... and 17 more
Published May 27, 2026
Tracked Since May 27, 2026