CVE-2022-50640 (GCVE-0-2022-50640)
Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2026-05-11 19:22
VLAI
EPSS
VEX
Title
mmc: core: Fix kernel panic when remove non-standard SDIO card
Summary
In the Linux kernel, the following vulnerability has been resolved:
mmc: core: Fix kernel panic when remove non-standard SDIO card
SDIO tuple is only allocated for standard SDIO card, especially it causes
memory corruption issues when the non-standard SDIO card has removed, which
is because the card device's reference counter does not increase for it at
sdio_init_func(), but all SDIO card device reference counter gets decreased
at sdio_release_func().
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < b8b2965932e702b21e335ff30e1bb550f5a23b6f
(git)
Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < b3275dde570b6420106a715bb58a0af041b94d95 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 1fb79478695d92bab1c120ad3dad05252b02a29d (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 7a09c64b7da0abdec3919812e3d93ecc44069ed0 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 8bf037279b5869ae9331c42bb1527d2680ebba96 (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 1e8cd93ae536581562bab4e1d8c5315bbc2548bf (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 66d461a92f32b6995b630625d350259b6b1f961b (git) Affected: 6f51be3d37dff73cf8db771df4169f4c2f1cbf66 , < 9972e6b404884adae9eec7463e30d9b3c9a70b18 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.36
Unaffected: 0 , < 2.6.36 (semver) Unaffected: 4.9.332 , ≤ 4.9.* (semver) Unaffected: 4.14.298 , ≤ 4.14.* (semver) Unaffected: 4.19.264 , ≤ 4.19.* (semver) Unaffected: 5.4.223 , ≤ 5.4.* (semver) Unaffected: 5.10.153 , ≤ 5.10.* (semver) Unaffected: 5.15.77 , ≤ 5.15.* (semver) Unaffected: 6.0.7 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/mmc/core/sdio_bus.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b8b2965932e702b21e335ff30e1bb550f5a23b6f",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "b3275dde570b6420106a715bb58a0af041b94d95",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "1fb79478695d92bab1c120ad3dad05252b02a29d",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "7a09c64b7da0abdec3919812e3d93ecc44069ed0",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "8bf037279b5869ae9331c42bb1527d2680ebba96",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "1e8cd93ae536581562bab4e1d8c5315bbc2548bf",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "66d461a92f32b6995b630625d350259b6b1f961b",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "9972e6b404884adae9eec7463e30d9b3c9a70b18",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/mmc/core/sdio_bus.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.36"
},
{
"lessThan": "2.6.36",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.332",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.298",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.264",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.223",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.153",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.77",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.7",
"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": "4.9.332",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.298",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.264",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.223",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.153",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.77",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.7",
"versionStartIncluding": "2.6.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1",
"versionStartIncluding": "2.6.36",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: Fix kernel panic when remove non-standard SDIO card\n\nSDIO tuple is only allocated for standard SDIO card, especially it causes\nmemory corruption issues when the non-standard SDIO card has removed, which\nis because the card device\u0027s reference counter does not increase for it at\nsdio_init_func(), but all SDIO card device reference counter gets decreased\nat sdio_release_func()."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:22:45.426Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f"
},
{
"url": "https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95"
},
{
"url": "https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d"
},
{
"url": "https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0"
},
{
"url": "https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96"
},
{
"url": "https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf"
},
{
"url": "https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b"
},
{
"url": "https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18"
}
],
"title": "mmc: core: Fix kernel panic when remove non-standard SDIO card",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50640",
"datePublished": "2025-12-09T00:00:13.871Z",
"dateReserved": "2025-12-08T23:57:43.370Z",
"dateUpdated": "2026-05-11T19:22:45.426Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2022-50640",
"date": "2026-09-30",
"epss": "0.0021",
"percentile": "0.10137"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/mmc/core/sdio_bus.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "b8b2965932e702b21e335ff30e1bb550f5a23b6f",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "b3275dde570b6420106a715bb58a0af041b94d95",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "1fb79478695d92bab1c120ad3dad05252b02a29d",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "7a09c64b7da0abdec3919812e3d93ecc44069ed0",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "8bf037279b5869ae9331c42bb1527d2680ebba96",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "1e8cd93ae536581562bab4e1d8c5315bbc2548bf",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "66d461a92f32b6995b630625d350259b6b1f961b",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
},
{
"lessThan": "9972e6b404884adae9eec7463e30d9b3c9a70b18",
"status": "affected",
"version": "6f51be3d37dff73cf8db771df4169f4c2f1cbf66",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/mmc/core/sdio_bus.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.36"
},
{
"lessThan": "2.6.36",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.332",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.298",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.264",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.223",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.153",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.77",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.7",
"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\nmmc: core: Fix kernel panic when remove non-standard SDIO card\n\nSDIO tuple is only allocated for standard SDIO card, especially it causes\nmemory corruption issues when the non-standard SDIO card has removed, which\nis because the card device\u0027s reference counter does not increase for it at\nsdio_init_func(), but all SDIO card device reference counter gets decreased\nat sdio_release_func()."
}
],
"id": "CVE-2022-50640",
"lastModified": "2026-06-17T05:23:54.960",
"metrics": {},
"published": "2025-12-09T01:16:46.410",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-29T21:55:35+00:00",
"cve": "CVE-2022-50640",
"id": "CVE-2022-50640",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:fixed": "280",
"product_status:known_affected": "112",
"product_status:known_not_affected": "84",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: mmc: core: Fix kernel panic when remove non-standard SDIO card",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50640.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T01:21:58Z",
"cve": "CVE-2022-50640",
"id": "CVE-2022-50640",
"initial_release_date": "2025-12-10T00:39:12Z",
"product_status:known_affected": "507",
"product_status:known_not_affected": "209",
"product_status:recommended": "237",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-50640",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50640.json",
"version": "34"
}
}
}
Loading…
Loading…
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.
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.
Loading…