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vuln-cve/data/2023/53xxx/CVE-2023-53518.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53518",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-10-01T11:39:39.407Z",
"datePublished": "2025-10-01T11:46:05.446Z",
"dateUpdated": "2026-10-15T21:41:29.791Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T09:14:35.040Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM / devfreq: Fix leak in devfreq_dev_release()\n\nsrcu_init_notifier_head() allocates resources that need to be released\nwith a srcu_cleanup_notifier_head() call.\n\nReported by kmemleak."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The devfreq release path is reached only through local device-lifecycle operations — driver bind/unbind via sysfs, module load/unload, or a failed probe — with no remote or network-facing consumer of this code. There is no packet-driven or adjacent-network path into devfreq_dev_release().\nAC:L - The leak is deterministic — every devfreq device teardown unconditionally drops the srcu per-CPU allocations, so a repeated unbind/rebind loop reliably exhausts per-CPU memory. The attacker drives both the srcu grace-period activity (governor/notifier teardown) and the immediately following kfree(), so the dangling-work window is attacker-created rather than dependent on external state.\nPR:L - The trigger is a local device-management operation on the affected platform (GPU/UFS/bus devfreq drivers), consistent with how other driver teardown/unload memory-corruption issues are scored; no authentication to a remote service and no capability that is unreachable in practice on the affected embedded/Android deployments is needed.\nUI:N - The attacker performs the bind/unbind or module unload themselves in a loop; no victim action, mount, or file open is required for the leak or the dangling srcu work to occur.\nS:U - The leaked allocations and any resulting corruption are entirely within the kernel's own memory and security authority, with no crossing into a hypervisor, IOMMU, or other security domain.\nC:H - kfree()ing the devfreq object while the srcu_struct is still live leaves leaked per-CPU srcu_data with dangling ->ssp pointers and pending srcu work into freed slab memory, a use-after-free that can be groomed to read back kernel data from the reallocated object.\nI:H - The uncleaned srcu_struct embeds a delayed_work and per-CPU timers that can fire after the containing allocation is freed, causing srcu state-machine writes (locks, sequence counters, work_struct/timer list links) into memory an attacker can reallocate — a write primitive into a controlled heap object.\nA:H - Each teardown leaks srcu_usage, the srcu_node tree, and a per-CPU srcu_data array; per-CPU memory is a scarce vmalloc-backed resource, so repeated cycles exhaust it and cause system-wide allocation failures, and the dangling timer/work references can additionally oops the kernel."
}
]
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/devfreq/devfreq.c"
],
"versions": [
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "7462483446cb9986568ad7adae746ce5f18d2968",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "64e6e0dc2d578c0a9e31cb4edd719f0a3ed98f6d",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "29811f4b8255d4238cf326f3bb7129784766beab",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "ab192e5e5d3b48415909a8408acfd007a607bcc0",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "111bafa210ae546bee7644be730c42df9c35b66e",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "8918025feb2f5f7c73f2495c158f22997e25cb02",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "1640e9c72173911ad0fddb05012c01eafe082c4e",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "3354c401c68d70567d1ef25d12f4e22a7813a3c6",
"status": "affected",
"versionType": "git"
},
{
"version": "0fe3a66410a3ba96679be903f1e287d7a0a264a9",
"lessThan": "5693d077595de721f9ddbf9d37f40e5409707dfe",
"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/devfreq/devfreq.c"
],
"versions": [
{
"version": "4.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.7",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.326",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.295",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.257",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.195",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.132",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.53",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.4.16",
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.5.3",
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6",
"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": "4.7",
"versionEndExcluding": "4.14.326"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "4.19.295"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "5.4.257"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "5.10.195"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "5.15.132"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "6.1.53"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "6.4.16"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "6.5.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.7",
"versionEndExcluding": "6.6"
}
]
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]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/7462483446cb9986568ad7adae746ce5f18d2968"
},
{
"url": "https://git.kernel.org/stable/c/64e6e0dc2d578c0a9e31cb4edd719f0a3ed98f6d"
},
{
"url": "https://git.kernel.org/stable/c/29811f4b8255d4238cf326f3bb7129784766beab"
},
{
"url": "https://git.kernel.org/stable/c/ab192e5e5d3b48415909a8408acfd007a607bcc0"
},
{
"url": "https://git.kernel.org/stable/c/111bafa210ae546bee7644be730c42df9c35b66e"
},
{
"url": "https://git.kernel.org/stable/c/8918025feb2f5f7c73f2495c158f22997e25cb02"
},
{
"url": "https://git.kernel.org/stable/c/1640e9c72173911ad0fddb05012c01eafe082c4e"
},
{
"url": "https://git.kernel.org/stable/c/3354c401c68d70567d1ef25d12f4e22a7813a3c6"
},
{
"url": "https://git.kernel.org/stable/c/5693d077595de721f9ddbf9d37f40e5409707dfe"
}
],
"title": "PM / devfreq: Fix leak in devfreq_dev_release()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2023-53518",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-15T21:35:17.855174Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-15T21:41:29.791Z"
}
}
]
}
}
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