CVE-2024-36000
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-36000
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36000.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-36000
- Downstream
- Related
- Published
- 2024-05-20T09:48:02.318Z
- Modified
- 2025-11-28T02:35:08.779302Z
- Summary
- mm/hugetlb: fix missing hugetlb_lock for resv uncharge
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: fix missing hugetlb_lock for resv uncharge
There is a recent report on UFFDIO_COPY over hugetlb:
https://lore.kernel.org/all/000000000000ee06de0616177560@google.com/
350: lockdepassertheld(&hugetlb_lock);
Should be an issue in hugetlb but triggered in an userfault context, where it goes into the unlikely path where two threads modifying the resv map together. Mike has a fix in that path for resv uncharge but it looks like the locking criteria was overlooked: hugetlbcgroupunchargefoliorsvd() will update the cgroup pointer, so it requires to be called with the lock held.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36000.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/4c806333efea1000a2a9620926f560ad2e1ca7cc
- https://git.kernel.org/stable/c/538faabf31e9c53d8c870d114846fda958a0de10
- https://git.kernel.org/stable/c/b76b46902c2d0395488c8412e1116c2486cdfcb2
- https://git.kernel.org/stable/c/f6c5d21db16a0910152ec8aa9d5a7aed72694505
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36000.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-36000
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced79aa925bf239c234be8586780e482872dc4690ddFixed4c806333efea1000a2a9620926f560ad2e1ca7ccFixedf6c5d21db16a0910152ec8aa9d5a7aed72694505Fixed538faabf31e9c53d8c870d114846fda958a0de10Fixedb76b46902c2d0395488c8412e1116c2486cdfcb2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedf87004c0b2bdf0f1066b88795d8e6c1dfad6cea0