CVE-2022-49590
igmp: Fix data-races around sysctl_igmp_llm_reports.
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:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
Linux · Linux¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →Referencias
https://git.kernel.org/stable/c/1656ecaddf90e2a070ec2d2404cdae3edf80facahttps://git.kernel.org/stable/c/260446eb8e5541402b271343a4516f2b33dec1e4https://git.kernel.org/stable/c/46307adceb67bdf2ec38408dd9cebc378a6b5c46https://git.kernel.org/stable/c/473aad9ad57ff760005377e6f45a2ad4210e08cehttps://git.kernel.org/stable/c/a84b4afaca2573ed3aed1f8854aefe3ca5a82e72https://git.kernel.org/stable/c/d77969e7d4ccc26bf1f414a39ef35050a83ba6d5https://git.kernel.org/stable/c/ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8https://git.kernel.org/stable/c/f6da2267e71106474fbc0943dc24928b9cb79119