CVE-2022-50570 (GCVE-0-2022-50570)
Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-08-05 08:59
VLAI
EPSS
VEX
Title
platform/chrome: fix memory corruption in ioctl
Summary
In the Linux kernel, the following vulnerability has been resolved:
platform/chrome: fix memory corruption in ioctl
If "s_mem.bytes" is larger than the buffer size it leads to memory
corruption.
Severity
7.8 (High)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
eda2e30c6684d67288edb841c6125d48c608a242 , < e548f9503c4b3292a60a63fe77dccea62999a35a
(git)
Affected: eda2e30c6684d67288edb841c6125d48c608a242 , < 868fc93b615b9f6c2b0b1894536618fa6cd66acc (git) Affected: eda2e30c6684d67288edb841c6125d48c608a242 , < fd1d3b265784a2243fcaef06aebfb2f8ee733cec (git) Affected: eda2e30c6684d67288edb841c6125d48c608a242 , < f143f1d9a8e5c6c9db3de81ca270191226fcce36 (git) Affected: eda2e30c6684d67288edb841c6125d48c608a242 , < 0c2e18924504208644d18415667895a4ac54cf2a (git) Affected: eda2e30c6684d67288edb841c6125d48c608a242 , < 8a07b45fd3c2dda24fad43639be5335a4595196a (git) |
guessed | |
| Linux | Linux |
Affected:
5.4
Unaffected: 0 , < 5.4 (semver) Unaffected: 5.4.220 , ≤ 5.4.* (semver) Unaffected: 5.10.150 , ≤ 5.10.* (semver) Unaffected: 5.15.75 , ≤ 5.15.* (semver) Unaffected: 5.19.17 , ≤ 5.19.* (semver) Unaffected: 6.0.3 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_chardev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "e548f9503c4b3292a60a63fe77dccea62999a35a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "868fc93b615b9f6c2b0b1894536618fa6cd66acc",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "fd1d3b265784a2243fcaef06aebfb2f8ee733cec",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "f143f1d9a8e5c6c9db3de81ca270191226fcce36",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "0c2e18924504208644d18415667895a4ac54cf2a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "8a07b45fd3c2dda24fad43639be5335a4595196a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_chardev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"lessThan": "5.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.220",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.75",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.17",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.220",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.150",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.75",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.19.17",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.3",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1",
"versionStartIncluding": "5.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: fix memory corruption in ioctl\n\nIf \"s_mem.bytes\" is larger than the buffer size it leads to memory\ncorruption."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The bug is reached only through a local ioctl (CROS_EC_DEV_IOCRDMEM) on the Cros EC misc character device (/dev/cros_ec) via cros_ec_chardev_ioctl \u2192 cros_ec_chardev_ioctl_readmem; it is not reachable from network packet processing or physical bus injection.\nAC:L - An attacker who can open the device fully controls s_mem.bytes/offset and can set bytes \u003e EC_MEMMAP_SIZE (255); unsigned underflow in cros_ec_lpc_readmem\u2019s bounds check then lets cmd_readmem write past the stack buffer with no race or other condition outside the attacker\u2019s control.\nPR:L - Neither open nor the readmem ioctl path checks capabilities\u2014only device-node permissions\u2014and /dev/cros_ec is intended for userspace EC tools, with Chrome OS cros_ec-access group access and Linux deployments that grant udev/uaccess, so real root is not required.\nUI:N - The attacker opens /dev/cros_ec and issues CROS_EC_DEV_IOCRDMEM themselves; no separate victim action such as mounting a filesystem or opening a crafted file is required.\nS:U - Impact is kernel stack memory corruption within the host OS privilege boundary via the platform chrome chardev driver; this is ordinary local kernel compromise, not a VM escape or IOMMU/cross-authority bypass.\nC:H - The out-of-bounds stack write is memory corruption that, per kernel CVSS guidance, can be leveraged for information disclosure and full compromise once control-flow is hijacked.\nI:H - cmd_readmem writes an attacker-chosen number of bytes into the fixed-size s_mem.buffer on the kernel stack (cros_ec_lpc_read_bytes loops length times into dest), producing an out-of-bounds write exploitable for integrity compromise and control-flow hijacking.\nA:H - Stack buffer overflow past s_mem.buffer can oops/panic the kernel (stack canary, corrupted frames, or large I/O reads into kernel stack), which is high availability impact under kernel CVSS guidance."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T08:59:10.542Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/e548f9503c4b3292a60a63fe77dccea62999a35a"
},
{
"url": "https://git.kernel.org/stable/c/868fc93b615b9f6c2b0b1894536618fa6cd66acc"
},
{
"url": "https://git.kernel.org/stable/c/fd1d3b265784a2243fcaef06aebfb2f8ee733cec"
},
{
"url": "https://git.kernel.org/stable/c/f143f1d9a8e5c6c9db3de81ca270191226fcce36"
},
{
"url": "https://git.kernel.org/stable/c/0c2e18924504208644d18415667895a4ac54cf2a"
},
{
"url": "https://git.kernel.org/stable/c/8a07b45fd3c2dda24fad43639be5335a4595196a"
}
],
"title": "platform/chrome: fix memory corruption in ioctl",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50570",
"datePublished": "2025-10-22T13:23:26.495Z",
"dateReserved": "2025-10-22T13:20:23.760Z",
"dateUpdated": "2026-08-05T08:59:10.542Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2022-50570",
"date": "2026-10-27",
"epss": "0.00164",
"percentile": "0.05609"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_chardev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "e548f9503c4b3292a60a63fe77dccea62999a35a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "868fc93b615b9f6c2b0b1894536618fa6cd66acc",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "fd1d3b265784a2243fcaef06aebfb2f8ee733cec",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "f143f1d9a8e5c6c9db3de81ca270191226fcce36",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "0c2e18924504208644d18415667895a4ac54cf2a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
},
{
"lessThan": "8a07b45fd3c2dda24fad43639be5335a4595196a",
"status": "affected",
"version": "eda2e30c6684d67288edb841c6125d48c608a242",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_chardev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"lessThan": "5.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.220",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.75",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.17",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: fix memory corruption in ioctl\n\nIf \"s_mem.bytes\" is larger than the buffer size it leads to memory\ncorruption."
}
],
"id": "CVE-2022-50570",
"lastModified": "2026-08-04T10:18:19.780",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2025-10-22T14:15:41.910",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0c2e18924504208644d18415667895a4ac54cf2a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/868fc93b615b9f6c2b0b1894536618fa6cd66acc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8a07b45fd3c2dda24fad43639be5335a4595196a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e548f9503c4b3292a60a63fe77dccea62999a35a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f143f1d9a8e5c6c9db3de81ca270191226fcce36"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fd1d3b265784a2243fcaef06aebfb2f8ee733cec"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-30T10:28:10+00:00",
"cve": "CVE-2022-50570",
"id": "CVE-2022-50570",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: platform/chrome: fix memory corruption in ioctl",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50570.json",
"version": "3"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.