CVE-2022-49590

MEDIUM

Linux Kernel 4.3-5.18.15 - Data Race in IGMP sysctl_igmp_llm_reports Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_llm_reports. While reading sysctl_igmp_llm_reports, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. if (ipv4_is_local_multicast(pmc->multiaddr) && !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))

References (8)

Core 8

Scores

CVSS v3 4.7
EPSS 0.0018
EPSS Percentile 7.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-362
Status published
Products (27)
linux/Kernel 4.10.0 - 4.14.290linux
linux/Kernel 4.15.0 - 4.19.254linux
linux/Kernel 4.20.0 - 5.4.208linux
linux/Kernel 4.3.0 - 4.9.325linux
linux/Kernel 5.11.0 - 5.15.58linux
linux/Kernel 5.16.0 - 5.18.15linux
linux/Kernel 5.5.0 - 5.10.134linux
Linux/Linux < 4.3
Linux/Linux 4.14.290 - 4.14.*
Linux/Linux 4.19.254 - 4.19.*
... and 17 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026