CVE - CVE-2024-47676

CVE-ID
CVE-2024-47676	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/98b74bb4d7e96b4da5ef3126511febe55b76b807 URL:https://git.kernel.org/stable/c/98b74bb4d7e96b4da5ef3126511febe55b76b807 MISC:https://git.kernel.org/stable/c/d59ebc99dee0a2687a26df94b901eb8216dbf876 URL:https://git.kernel.org/stable/c/d59ebc99dee0a2687a26df94b901eb8216dbf876 MISC:https://git.kernel.org/stable/c/e897d184a8dd4a4e1f39c8c495598e4d9472776c URL:https://git.kernel.org/stable/c/e897d184a8dd4a4e1f39c8c495598e4d9472776c
Assigning CNA
kernel.org
Date Record Created
20240930	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240930)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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