CVE-2026-43208

CRITICAL

Linux Kernel RPS - Out-of-Bounds Access

Title source: manual
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: do not pass flow_id to set_rps_cpu() Blamed commit made the assumption that the RPS table for each receive queue would have the same size, and that it would not change. Compute flow_id in set_rps_cpu(), do not assume we can use the value computed by get_rps_cpu(). Otherwise we risk out-of-bound access and/or crashes.

Scores

CVSS v3 9.8
EPSS 0.0005
EPSS Percentile 16.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (10)
Linux/Linux < 6.18
Linux/Linux 48aa30443e52c9666d5cd5e67532e475f212337e - 5455a232edea6b946b99449f15ca771a8874a5a6
Linux/Linux 48aa30443e52c9666d5cd5e67532e475f212337e - 8a8a9fac9efa6423fd74938b940cb7d731780718
Linux/Linux 48aa30443e52c9666d5cd5e67532e475f212337e - ed712dc0d64dee5f0d05e4d8ca57711f8a9c850c
Linux/Linux 6.18
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 7.0
linux/linux_kernel 7.0 rc1
linux/linux_kernel 6.18 - 6.18.16
Published May 06, 2026
Tracked Since May 06, 2026