CVEvulnerability

CVE-2022-49590

4.7 MEDIUM Published 2025-02-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-02-26
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-362

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))

Affected configurations

• linux linux kernel (>= 4.3 < 4.9.325) • linux linux kernel (>= 4.10 < 4.14.290) • linux linux kernel (>= 4.15 < 4.19.254) • linux linux kernel (>= 4.20 < 5.4.208) • linux linux kernel (>= 5.5 < 5.10.134) • linux linux kernel (>= 5.11 < 5.15.58) • linux linux kernel (>= 5.16 < 5.18.15) • linux linux kernel 5.19

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References