Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-36000

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
20/05/2024
Last modified:
23/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mm/hugetlb: fix missing hugetlb_lock for resv uncharge<br /> <br /> There is a recent report on UFFDIO_COPY over hugetlb:<br /> <br /> https://lore.kernel.org/all/000000000000ee06de0616177560@google.com/<br /> <br /> 350: lockdep_assert_held(&amp;hugetlb_lock);<br /> <br /> Should be an issue in hugetlb but triggered in an userfault context, where<br /> it goes into the unlikely path where two threads modifying the resv map<br /> together. Mike has a fix in that path for resv uncharge but it looks like<br /> the locking criteria was overlooked: hugetlb_cgroup_uncharge_folio_rsvd()<br /> will update the cgroup pointer, so it requires to be called with the lock<br /> held.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.9.7 (including) 5.10 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10.1 (including) 6.1.91 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.30 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.8.9 (excluding)
cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools