CVE-2026-43208 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-43208
State: PUBLISHED
Assigner: Linux
Reserved: 2026-05-01 14:12 UTC
Published: 2026-05-06 11:28 UTC
Last updated: 2026-05-11 22:20 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	48aa30443e52c9666d5cd5e67532e475f212337e < 5455a232edea6b946b99449f15ca771a8874a5a6, 48aa30443e52c9666d5cd5e67532e475f212337e < ed712dc0d64dee5f0d05e4d8ca57711f8a9c850c, 48aa30443e52c9666d5cd5e67532e475f212337e < 8a8a9fac9efa6423fd74938b940cb7d731780718
Linux	Linux	—	6.18, 0 < 6.18, 6.18.16 ≤ 6.18., 6.19.6 ≤ 6.19. …

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)