CVE-2022-49972

In the Linux kernel, the following vulnerability has been resolved: xsk: Fix corrupted packets for XDP_SHARED_UMEM Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where packets are corrupted for the second and any further sockets bound to the same umem. In other words, this does not affect the first socket bound to the umem. The culprit for this bug is that the initialization of the DMA addresses for the pre-populated xsk buffer pool entries was not performed for any socket but the first one bound to the umem. Only the linear array of DMA addresses was populated. Fix this by populating the DMA addresses in the xsk buffer pool for every socket bound to the same umem.

The following products are affected by CVE-2022-49972 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49972.

URL	Resource
https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd
https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56
https://lore.kernel.org/linux-cve-announce/2025061818-CVE-2022-49972-651b@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49972
https://www.cve.org/CVERecord?id=CVE-2022-49972