{"api_version":"1","generated_at":"2026-08-25T02:10:21+00:00","cve":"CVE-2026-72010","urls":{"html":"https://cve.report/CVE-2026-72010","api":"https://cve.report/api/cve/CVE-2026-72010.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72010","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72010"},"summary":{"title":"cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed\n\nCreating a child cpuset where cpuset.mems is never set leads to a div/0\nwhen a VMA mempolicy with MPOL_F_RELATIVE_NODES rebinds in response to a\nCPU hotplug event.\n\nReproduction steps:\n 1) Create a cgroup w/ cpuset controls (do not set cpuset.mems)\n 2) Move the task into the child cpuset\n 3) Create a VMA mempolicy for that task with MPOL_F_RELATIVE_NODES\n 4) unplug and hotplug a cpu\n      echo 0 > /sys/devices/system/cpu/cpu1/online\n      echo 1 > /sys/devices/system/cpu/cpu1/online\n 5) mempolicy rebind does a div/0 in mpol_relative_nodemask on the\n    call to __nodes_fold()\n\nThe cpuset code passes (cs->mems_allowed) which is not guaranteed to have\nnodes to the rebind routine.  Use cs->effective_mems instead, which is\nguaranteed to have a non-empty nodemask once we reach that code path.\n\n[ david: add a comment, slightly rephrase description ]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:20:59","updated_at":"2026-08-17 06:17:58"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c17f06d8a085d6be58b544a440ce243f5e441a60","name":"https://git.kernel.org/stable/c/c17f06d8a085d6be58b544a440ce243f5e441a60","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b06449384b9ee5b3372bab60601ba5cd4162086","name":"https://git.kernel.org/stable/c/4b06449384b9ee5b3372bab60601ba5cd4162086","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fcc8c310539c3cc523419113b227161a96b50550","name":"https://git.kernel.org/stable/c/fcc8c310539c3cc523419113b227161a96b50550","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7","name":"https://git.kernel.org/stable/c/02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c844b7d9a9586de15dd28c06da5cc7f6ab28787d","name":"https://git.kernel.org/stable/c/c844b7d9a9586de15dd28c06da5cc7f6ab28787d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b983c56426383e4a06fa5970c4e33cee879b1482","name":"https://git.kernel.org/stable/c/b983c56426383e4a06fa5970c4e33cee879b1482","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fc680afc510157f6b137956011c09abc23eb0842","name":"https://git.kernel.org/stable/c/fc680afc510157f6b137956011c09abc23eb0842","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d","name":"https://git.kernel.org/stable/c/b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72010","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72010","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 fcc8c310539c3cc523419113b227161a96b50550 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 4b06449384b9ee5b3372bab60601ba5cd4162086 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ae1c802382f7af60aa54879fb4f5920a9df1ff48 02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72010","cve":"CVE-2026-72010","epss":"0.002100000","percentile":"0.115340000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/cgroup/cpuset.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"fcc8c310539c3cc523419113b227161a96b50550","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"4b06449384b9ee5b3372bab60601ba5cd4162086","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"fc680afc510157f6b137956011c09abc23eb0842","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"c844b7d9a9586de15dd28c06da5cc7f6ab28787d","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"c17f06d8a085d6be58b544a440ce243f5e441a60","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"},{"lessThan":"b983c56426383e4a06fa5970c4e33cee879b1482","status":"affected","version":"ae1c802382f7af60aa54879fb4f5920a9df1ff48","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/cgroup/cpuset.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.17"},{"lessThan":"3.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"3.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"3.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed\n\nCreating a child cpuset where cpuset.mems is never set leads to a div/0\nwhen a VMA mempolicy with MPOL_F_RELATIVE_NODES rebinds in response to a\nCPU hotplug event.\n\nReproduction steps:\n 1) Create a cgroup w/ cpuset controls (do not set cpuset.mems)\n 2) Move the task into the child cpuset\n 3) Create a VMA mempolicy for that task with MPOL_F_RELATIVE_NODES\n 4) unplug and hotplug a cpu\n      echo 0 > /sys/devices/system/cpu/cpu1/online\n      echo 1 > /sys/devices/system/cpu/cpu1/online\n 5) mempolicy rebind does a div/0 in mpol_relative_nodemask on the\n    call to __nodes_fold()\n\nThe cpuset code passes (cs->mems_allowed) which is not guaranteed to have\nnodes to the rebind routine.  Use cs->effective_mems instead, which is\nguaranteed to have a non-empty nodemask once we reach that code path.\n\n[ david: add a comment, slightly rephrase description ]"}],"providerMetadata":{"dateUpdated":"2026-08-17T05:06:32.084Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b7adeba2a21c98c7b20f18e27e3ead86bdb5e08d"},{"url":"https://git.kernel.org/stable/c/fcc8c310539c3cc523419113b227161a96b50550"},{"url":"https://git.kernel.org/stable/c/4b06449384b9ee5b3372bab60601ba5cd4162086"},{"url":"https://git.kernel.org/stable/c/02f67c4f88be8e3dbd91951d13cdcc5bcc82e9c7"},{"url":"https://git.kernel.org/stable/c/fc680afc510157f6b137956011c09abc23eb0842"},{"url":"https://git.kernel.org/stable/c/c844b7d9a9586de15dd28c06da5cc7f6ab28787d"},{"url":"https://git.kernel.org/stable/c/c17f06d8a085d6be58b544a440ce243f5e441a60"},{"url":"https://git.kernel.org/stable/c/b983c56426383e4a06fa5970c4e33cee879b1482"}],"title":"cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72010","datePublished":"2026-08-15T05:51:39.755Z","dateReserved":"2026-08-09T03:40:39.899Z","dateUpdated":"2026-08-17T05:06:32.084Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:20:59","lastModifiedDate":"2026-08-17 06:17:58","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72010","Ordinal":"1","Title":"cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_a","CVE":"CVE-2026-72010","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72010","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_allowed\n\nCreating a child cpuset where cpuset.mems is never set leads to a div/0\nwhen a VMA mempolicy with MPOL_F_RELATIVE_NODES rebinds in response to a\nCPU hotplug event.\n\nReproduction steps:\n 1) Create a cgroup w/ cpuset controls (do not set cpuset.mems)\n 2) Move the task into the child cpuset\n 3) Create a VMA mempolicy for that task with MPOL_F_RELATIVE_NODES\n 4) unplug and hotplug a cpu\n      echo 0 > /sys/devices/system/cpu/cpu1/online\n      echo 1 > /sys/devices/system/cpu/cpu1/online\n 5) mempolicy rebind does a div/0 in mpol_relative_nodemask on the\n    call to __nodes_fold()\n\nThe cpuset code passes (cs->mems_allowed) which is not guaranteed to have\nnodes to the rebind routine.  Use cs->effective_mems instead, which is\nguaranteed to have a non-empty nodemask once we reach that code path.\n\n[ david: add a comment, slightly rephrase description ]","Type":"Description","Title":"cgroup/cpuset: rebind mm mempolicy to effective_mems, not mems_a"}]}}}