CVE-2026-72010cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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 ]
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < fcc8c310539c3cc523419113b227161a96b50550
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < 4b06449384b9ee5b3372bab60601ba5cd4162086
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < 02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < fc680afc510157f6b137956011c09abc23eb0842
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < c844b7d9a9586de15dd28c06da5cc7f6ab28787d
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < c17f06d8a085d6be58b544a440ce243f5e441a60
- affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 – < b983c56426383e4a06fa5970c4e33cee879b1482
- affected 3.17
- unaffected < 3.17
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d (opens in a new tab)
- https://git.kernel.org/stable/c/fcc8c310539c3cc523419113b227161a96b50550 (opens in a new tab)
- https://git.kernel.org/stable/c/4b06449384b9ee5b3372bab60601ba5cd4162086 (opens in a new tab)
- https://git.kernel.org/stable/c/02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7 (opens in a new tab)
- https://git.kernel.org/stable/c/fc680afc510157f6b137956011c09abc23eb0842 (opens in a new tab)
- https://git.kernel.org/stable/c/c844b7d9a9586de15dd28c06da5cc7f6ab28787d (opens in a new tab)
- https://git.kernel.org/stable/c/c17f06d8a085d6be58b544a440ce243f5e441a60 (opens in a new tab)
- https://git.kernel.org/stable/c/b983c56426383e4a06fa5970c4e33cee879b1482 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59109 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72010)Record last updated .