4.7

CVE-2022-49590: igmp: Fix data-races around sysctl_igmp_llm_reports.

Modified
AliasesUBUNTU-CVE-2022-49590DEBIAN-CVE-2022-49590
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49590 is a medium (CVSS 4.7) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
RHSA-2023:2458SUSE-SU-2025:01600-1

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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))

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.19% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 4.15.0-197.208 | < 5.4.0-128.144 | < 5.15.0-50.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1143.155 | < 5.4.0-1086.93 | < 5.15.0-1021.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < a84b4afaca2573ed3aed1f8854aefe3ca5a82e72 | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < d77969e7d4ccc26bf1f414a39ef35050a83ba6d5 | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8 | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < 1656ecaddf90e2a070ec2d2404cdae3edf80faca | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < 473aad9ad57ff760005377e6f45a2ad4210e08ce | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < 260446eb8e5541402b271343a4516f2b33dec1e4 | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < 46307adceb67bdf2ec38408dd9cebc378a6b5c46 | ≥ df2cf4a78e488d26728590cb3c6b4fe4c4862c77, < f6da2267e71106474fbc0943dc24928b9cb79119 | 4.3
  • linux_kernel≥ 4.3, < 4.9.325 | ≥ 4.10, < 4.14.290 | ≥ 4.15, < 4.19.254 | ≥ 4.20, < 5.4.208 | ≥ 5.5, < 5.10.134 | ≥ 5.11, < 5.15.58 | ≥ 5.16, < 5.18.15 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4 | 5.19:rc5 | 5.19:rc6 | 5.19:rc7
Debian1 product
  • linux< 5.18.16-1

3 vendors · 114 products

References

12 links
Show all 12 references