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CVE-2026-72010— cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 3.17版本存在安全漏洞，该漏洞源于cgroup/cpuset在重新绑定内存策略时使用mems_allowed而非effective_mems，在创建子cpuset且未设置cpuset.mems时，CPU热插拔事件可能导致除零错误，从而导致内核崩溃。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ae1c802382f7af60aa54879fb4f5920a9df1ff48< b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< fcc8c310539c3cc523419113b227161a96b50550 affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< 4b06449384b9ee5b3372bab60601ba5cd4162086 affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< 02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7 affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< fc680afc510157f6b137956011c09abc23eb0842 affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< c844b7d9a9586de15dd28c06da5cc7f6ab28787d affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< c17f06d8a085d6be58b544a440ce243f5e441a60 affected
ae1c802382f7af60aa54879fb4f5920a9df1ff48< b983c56426383e4a06fa5970c4e33cee879b1482 affected
… +10 more rows
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I. Basic Information for CVE-2026-72010

Vulnerability Information
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Vulnerability Title
cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed
Source: CVE Program / CVE List V5
Vulnerability 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 ]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 3.17版本存在安全漏洞，该漏洞源于cgroup/cpuset在重新绑定内存策略时使用mems_allowed而非effective_mems，在创建子cpuset且未设置cpuset.mems时，CPU热插拔事件可能导致除零错误，从而导致内核崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ae1c802382f7af60aa54879fb4f5920a9df1ff48 ~ b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d -
Linux Linux 3.17 -

II. Public POCs for CVE-2026-72010

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III. Intelligence Information for CVE-2026-72010

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Patches & Fixes for CVE-2026-72010 (8)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72217 9.8 CRITICAL SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing
CVE-2026-72491 9.8 CRITICAL net/9p: fix race condition on rdma->state in trans_rdma.c
CVE-2026-72221 9.8 CRITICAL sunrpc: wait for in-flight TLS handshake callback when cancel loses race
CVE-2026-72222 9.8 CRITICAL sunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-72220 9.8 CRITICAL sunrpc: harden rq_procinfo lifecycle to prevent double-free
CVE-2026-72398 9.8 CRITICAL sctp: add INIT verification after cookie unpacking
CVE-2026-72477 9.8 CRITICAL fs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-72466 9.8 CRITICAL xprtrdma: Fix bcall rep leak and unbounded peek
CVE-2026-72472 9.8 CRITICAL nfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-72473 9.8 CRITICAL xprtrdma: Decouple req recycling from RPC completion
CVE-2026-72399 9.8 CRITICAL net: enetc: check the number of BDs needed for xdp_frame
CVE-2026-74398 9.8 CRITICAL ipv6: addrconf: bail out of dad_failure when state is no longer POSTDAD

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72010

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