CVE-2024-49872

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix memfd_pin_folios alloc race panic If memfd_pin_folios tries to create a hugetlb page, but someone else already did, then folio gets the value -EEXIST here: folio = memfd_alloc_folio(memfd, start_idx); if (IS_ERR(folio)) { ret = PTR_ERR(folio); if (ret != -EEXIST) goto err; then on the next trip through the "while start_idx" loop we panic here: if (folio) { folio_put(folio); To fix, set the folio to NULL on error.

The following products are affected by CVE-2024-49872 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-49872.

URL	Resource
https://git.kernel.org/stable/c/ce645b9fdc78ec5d28067286e92871ddae6817d5
https://git.kernel.org/stable/c/e28f39b359c0cfdcc011603e51187085a5f1e5e3
https://lore.kernel.org/linux-cve-announce/2024102114-CVE-2024-49872-16d4@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-49872
https://www.cve.org/CVERecord?id=CVE-2024-49872