CVE-2026-72010
cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
Description
In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed Creating a child cpuset where cpuset.mems is never set leads to a div/0 when a VMA mempolicy with MPOL_F_RELATIVE_NODES rebinds in response to a CPU hotplug event. Reproduction steps: 1) Create a cgroup w/ cpuset controls (do not set cpuset.mems) 2) Move the task into the child cpuset 3) Create a VMA mempolicy for that task with MPOL_F_RELATIVE_NODES 4) unplug and hotplug a cpu echo 0 > /sys/devices/system/cpu/cpu1/online echo 1 > /sys/devices/system/cpu/cpu1/online 5) mempolicy rebind does a div/0 in mpol_relative_nodemask on the call to __nodes_fold() The cpuset code passes (cs->mems_allowed) which is not guaranteed to have nodes to the rebind routine. Use cs->effective_mems instead, which is guaranteed to have a non-empty nodemask once we reach that code path. [ david: add a comment, slightly rephrase description ]
INFO
Published Date :
Aug. 15, 2026, 6:20 a.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel to the latest stable version.
- Apply the provided patch if updating is not possible.
- Ensure cpuset.mems is always configured correctly.
- Test system stability after applying changes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72010.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72010 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72010
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72010 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72010 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fcc8c310539c3cc523419113b227161a96b50550', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '4b06449384b9ee5b3372bab60601ba5cd4162086', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fc680afc510157f6b137956011c09abc23eb0842', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c844b7d9a9586de15dd28c06da5cc7f6ab28787d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c17f06d8a085d6be58b544a440ce243f5e441a60', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b983c56426383e4a06fa5970c4e33cee879b1482', 'versionType': 'git'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.17', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fcc8c310539c3cc523419113b227161a96b50550', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '4b06449384b9ee5b3372bab60601ba5cd4162086', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fc680afc510157f6b137956011c09abc23eb0842', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c844b7d9a9586de15dd28c06da5cc7f6ab28787d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c17f06d8a085d6be58b544a440ce243f5e441a60', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b983c56426383e4a06fa5970c4e33cee879b1482', 'versionType': 'git'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.17', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fcc8c310539c3cc523419113b227161a96b50550', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '4b06449384b9ee5b3372bab60601ba5cd4162086', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': '02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'fc680afc510157f6b137956011c09abc23eb0842', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c844b7d9a9586de15dd28c06da5cc7f6ab28787d', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'c17f06d8a085d6be58b544a440ce243f5e441a60', 'versionType': 'git'}, {'status': 'affected', 'version': 'ae1c802382f7af60aa54879fb4f5920a9df1ff48', 'lessThan': 'b983c56426383e4a06fa5970c4e33cee879b1482', 'versionType': 'git'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.17', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/cgroup/cpuset.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed Creating a child cpuset where cpuset.mems is never set leads to a div/0 when a VMA mempolicy with MPOL_F_RELATIVE_NODES rebinds in response to a CPU hotplug event. Reproduction steps: 1) Create a cgroup w/ cpuset controls (do not set cpuset.mems) 2) Move the task into the child cpuset 3) Create a VMA mempolicy for that task with MPOL_F_RELATIVE_NODES 4) unplug and hotplug a cpu echo 0 > /sys/devices/system/cpu/cpu1/online echo 1 > /sys/devices/system/cpu/cpu1/online 5) mempolicy rebind does a div/0 in mpol_relative_nodemask on the call to __nodes_fold() The cpuset code passes (cs->mems_allowed) which is not guaranteed to have nodes to the rebind routine. Use cs->effective_mems instead, which is guaranteed to have a non-empty nodemask once we reach that code path. [ david: add a comment, slightly rephrase description ] Added Reference https://git.kernel.org/stable/c/02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7 Added Reference https://git.kernel.org/stable/c/4b06449384b9ee5b3372bab60601ba5cd4162086 Added Reference https://git.kernel.org/stable/c/b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d Added Reference https://git.kernel.org/stable/c/b983c56426383e4a06fa5970c4e33cee879b1482 Added Reference https://git.kernel.org/stable/c/c17f06d8a085d6be58b544a440ce243f5e441a60 Added Reference https://git.kernel.org/stable/c/c844b7d9a9586de15dd28c06da5cc7f6ab28787d Added Reference https://git.kernel.org/stable/c/fc680afc510157f6b137956011c09abc23eb0842 Added Reference https://git.kernel.org/stable/c/fcc8c310539c3cc523419113b227161a96b50550