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))
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
| Link | Tags |
|---|---|
| https://git.kernel.org/stable/c/a84b4afaca2573ed3aed1f8854aefe3ca5a82e72 | patch mailing list |
| https://git.kernel.org/stable/c/d77969e7d4ccc26bf1f414a39ef35050a83ba6d5 | patch mailing list |
| https://git.kernel.org/stable/c/ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8 | patch mailing list |
| https://git.kernel.org/stable/c/1656ecaddf90e2a070ec2d2404cdae3edf80faca | patch mailing list |
| https://git.kernel.org/stable/c/473aad9ad57ff760005377e6f45a2ad4210e08ce | patch mailing list |
| https://git.kernel.org/stable/c/260446eb8e5541402b271343a4516f2b33dec1e4 | patch mailing list |
| https://git.kernel.org/stable/c/46307adceb67bdf2ec38408dd9cebc378a6b5c46 | patch mailing list |
| https://git.kernel.org/stable/c/f6da2267e71106474fbc0943dc24928b9cb79119 | patch mailing list |