CVE-2021-46911
Vulnerability from cvelistv5
Published
2024-02-27 06:53
Modified
2024-12-19 07:31
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ch_ktls: Fix kernel panic
Taking page refcount is not ideal and causes kernel panic
sometimes. It's better to take tx_ctx lock for the complete
skb transmit, to avoid page cleanup if ACK received in middle.
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-46911",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-26T20:42:53.147754Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-26T20:43:04.324Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:17:42.973Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/8d5a9dbd2116a852f8f0f91f6fbc42a0afe1091f"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/8348665d4181c68b0ca1205b48e1753d78bc810f"
},
{
"tags": [
"x_transferred"
],
"url": "https://git.kernel.org/stable/c/1a73e427b824133940c2dd95ebe26b6dce1cbf10"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8d5a9dbd2116a852f8f0f91f6fbc42a0afe1091f",
"status": "affected",
"version": "5a4b9fe7fece62ecab6fb28fe92362f83b41c33e",
"versionType": "git"
},
{
"lessThan": "8348665d4181c68b0ca1205b48e1753d78bc810f",
"status": "affected",
"version": "5a4b9fe7fece62ecab6fb28fe92362f83b41c33e",
"versionType": "git"
},
{
"lessThan": "1a73e427b824133940c2dd95ebe26b6dce1cbf10",
"status": "affected",
"version": "5a4b9fe7fece62ecab6fb28fe92362f83b41c33e",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"lessThan": "5.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.32",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.11.*",
"status": "unaffected",
"version": "5.11.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nch_ktls: Fix kernel panic\n\nTaking page refcount is not ideal and causes kernel panic\nsometimes. It\u0027s better to take tx_ctx lock for the complete\nskb transmit, to avoid page cleanup if ACK received in middle."
}
],
"providerMetadata": {
"dateUpdated": "2024-12-19T07:31:39.365Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/8d5a9dbd2116a852f8f0f91f6fbc42a0afe1091f"
},
{
"url": "https://git.kernel.org/stable/c/8348665d4181c68b0ca1205b48e1753d78bc810f"
},
{
"url": "https://git.kernel.org/stable/c/1a73e427b824133940c2dd95ebe26b6dce1cbf10"
}
],
"title": "ch_ktls: Fix kernel panic",
"x_generator": {
"engine": "bippy-5f407fcff5a0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2021-46911",
"datePublished": "2024-02-27T06:53:51.486Z",
"dateReserved": "2024-02-25T13:45:52.718Z",
"dateUpdated": "2024-12-19T07:31:39.365Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2021-46911\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T07:15:07.480\",\"lastModified\":\"2024-11-21T06:34:54.890\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nch_ktls: Fix kernel panic\\n\\nTaking page refcount is not ideal and causes kernel panic\\nsometimes. It\u0027s better to take tx_ctx lock for the complete\\nskb transmit, to avoid page cleanup if ACK received in middle.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ch_ktls: soluciona el p\u00e1nico del kernel. Realizar un recuento de p\u00e1ginas no es ideal y a veces provoca p\u00e1nico en el kernel. Es mejor utilizar el bloqueo tx_ctx para la transmisi\u00f3n skb completa, para evitar la limpieza de la p\u00e1gina si se recibe ACK en el medio.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.7.0\",\"versionEndExcluding\":\"5.10.32\",\"matchCriteriaId\":\"C1C508F5-A923-4065-B935-4585062D5CA8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.0\",\"versionEndExcluding\":\"5.11.16\",\"matchCriteriaId\":\"3C5242B9-B5BD-4578-AD66-69DF59D54A14\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1a73e427b824133940c2dd95ebe26b6dce1cbf10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8348665d4181c68b0ca1205b48e1753d78bc810f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d5a9dbd2116a852f8f0f91f6fbc42a0afe1091f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1a73e427b824133940c2dd95ebe26b6dce1cbf10\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8348665d4181c68b0ca1205b48e1753d78bc810f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d5a9dbd2116a852f8f0f91f6fbc42a0afe1091f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.