NetSight
IP …
medium4.7

CVE-2022-49590

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_llm_reports.

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
from 4.3 before 4.9.325
from 4.10 before 4.14.290
from 4.15 before 4.19.254
from 4.20 before 5.4.208
from 5.5 before 5.10.134
from 5.11 before 5.15.58

Weakness classification

CWE-362

References