CVE-2024-47676
- Source
- https://cve.org/CVERecord?id=CVE-2024-47676
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-47676.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-47676
- Downstream
- Related
- Published
- 2024-10-21T11:53:20.482Z
- Modified
- 2026-03-20T12:39:10.281701Z
- Summary
- mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway
- Details
-
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 hugetlbfault(). This happens because vmfanonprepare() could drop the per-VMA lock and allow the current VMA to be freed before hugetlbvmaunlockread() is called.
We can fix this by using a modified version of vmfanonprepare() that doesn't release the VMA lock on failure, and then release it ourselves after hugetlbvmaunlock_read().
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47676.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/98b74bb4d7e96b4da5ef3126511febe55b76b807
- https://git.kernel.org/stable/c/d59ebc99dee0a2687a26df94b901eb8216dbf876
- https://git.kernel.org/stable/c/e897d184a8dd4a4e1f39c8c495598e4d9472776c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47676.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-47676
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git