CVE-2024-47676
mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlb_fault(). This happens because vmf_anon_prepare() could drop the per-VMA lock and allow the current VMA to be freed before hugetlb_vma_unlock_read() is called. We can fix this by using a modified version of vmf_anon_prepare() that doesn't release the VMA lock on failure, and then release it ourselves after hugetlb_vma_unlock_read().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 21, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
9acad7ba3e25d11f4c96df1b7312ae89e6faca5c < e897d184a8dd4a4e1f39c8c495598e4d9472776c 9acad7ba3e25d11f4c96df1b7312ae89e6faca5c < d59ebc99dee0a2687a26df94b901eb8216dbf876 9acad7ba3e25d11f4c96df1b7312ae89e6faca5c < 98b74bb4d7e96b4da5ef3126511febe55b76b807
Linux / Linux
6.9