248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-97905",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-09-25T10:18:58.200Z",
|
|
"datePublished": "2026-09-25T10:22:31.046Z",
|
|
"dateUpdated": "2026-10-19T09:10:31.498Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-19T09:10:31.498Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: zero-initialize policy cpumask before sysfs publication\n\ncpufreq_policy_alloc() allocates policy->cpus with alloc_cpumask_var(),\ni.e. without __GFP_ZERO, unlike the sibling related_cpus and real_cpus\nmasks. With CONFIG_CPUMASK_OFFSTACK=y the mask is a separate\nkmalloc_node() allocation, so its bitmap holds whatever the slab allocator\nleft behind:\n\n cpufreq_online()\n cpufreq_policy_alloc()\n alloc_cpumask_var(&policy->cpus) /* bitmap is uninitialized */\n kobject_init_and_add() /* policy%u/ appears in sysfs */\n cpufreq_policy_online()\n cpumask_copy(policy->cpus, cpumask_of(cpu)) /* first valid value */\n\nThis leaves a window in which the sysfs attributes are already reachable\nwhile policy->cpus is still garbage. show()/store() gate on\npolicy_is_inactive(), i.e. cpumask_empty(policy->cpus), so a non-zero\nbitmap makes them run the attribute callbacks on a policy that is not\ninitialized yet.\n\nFix this by using zalloc_cpumask_var() for policy->cpus."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/cpufreq/cpufreq.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "e13370c5b549712f49f80234df249303381c53b4",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "e807920031ca32b668f9e7a1efbd21858f03d64b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "ca52482508b3ac9febe74ca4f732647d394727b8",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "06f273d29e5e0fe5c775a65c563fbeed8cd94c7a",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "0de2f3918fbbbb767e7e716178194b66560dd12a",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "6e166b9281dec98aed19213a84235250e5fdb081",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "bbc0472d2270bf732142ca71579d6ede636174ed",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2fc3384dc75bf7333384c7a16d12c796f61c3f56",
|
|
"lessThan": "54d37bcf2f497140b9207968557ddb484058e749",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/cpufreq/cpufreq.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "4.2",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "4.2",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.271",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.222",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.189",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.158",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.111",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.53",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2.7",
|
|
"lessThanOrEqual": "7.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.3",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "5.10.271"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "5.15.222"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "6.1.189"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "6.6.158"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "6.12.111"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "6.18.53"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "7.2.7"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "4.2",
|
|
"versionEndExcluding": "7.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/e13370c5b549712f49f80234df249303381c53b4"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/e807920031ca32b668f9e7a1efbd21858f03d64b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ca52482508b3ac9febe74ca4f732647d394727b8"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/06f273d29e5e0fe5c775a65c563fbeed8cd94c7a"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0de2f3918fbbbb767e7e716178194b66560dd12a"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/6e166b9281dec98aed19213a84235250e5fdb081"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/bbc0472d2270bf732142ca71579d6ede636174ed"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/54d37bcf2f497140b9207968557ddb484058e749"
|
|
}
|
|
],
|
|
"title": "cpufreq: zero-initialize policy cpumask before sysfs publication",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |