CVE-2026-72010
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
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 ]
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | fcc8c310539c3cc523419113b227161a96b50550 | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | 4b06449384b9ee5b3372bab60601ba5cd4162086 | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | 02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7 | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | fc680afc510157f6b137956011c09abc23eb0842 | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | c844b7d9a9586de15dd28c06da5cc7f6ab28787d | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | c17f06d8a085d6be58b544a440ce243f5e441a60 | Unavailable | None listed |
| ae1c802382f7af60aa54879fb4f5920a9df1ff48 | affected | git | b983c56426383e4a06fa5970c4e33cee879b1482 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.17 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |