cvelist/2024/35xxx/CVE-2024-35791.json
2024-11-05 10:03:14 +00:00

151 lines
8.0 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-35791",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()\n\nDo the cache flush of converted pages in svm_register_enc_region() before\ndropping kvm->lock to fix use-after-free issues where region and/or its\narray of pages could be freed by a different task, e.g. if userspace has\n__unregister_enc_region_locked() already queued up for the region.\n\nNote, the \"obvious\" alternative of using local variables doesn't fully\nresolve the bug, as region->pages is also dynamically allocated. I.e. the\nregion structure itself would be fine, but region->pages could be freed.\n\nFlushing multiple pages under kvm->lock is unfortunate, but the entire\nflow is a rare slow path, and the manual flush is only needed on CPUs that\nlack coherency for encrypted memory."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "4f627ecde732",
"version_value": "2d13b79640b1"
},
{
"version_affected": "<",
"version_name": "19a23da53932",
"version_value": "e126b508ed2e"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "5.11",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.11",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.215",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.154",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.84",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.24",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.7.12",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.8",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
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}
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}
}
]
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},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/2d13b79640b147bd77c34a5998533b2021a4122d",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/2d13b79640b147bd77c34a5998533b2021a4122d"
},
{
"url": "https://git.kernel.org/stable/c/e126b508ed2e616d679d85fca2fbe77bb48bbdd7",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/e126b508ed2e616d679d85fca2fbe77bb48bbdd7"
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{
"url": "https://git.kernel.org/stable/c/4868c0ecdb6cfde7c70cf478c46e06bb9c7e5865",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/4868c0ecdb6cfde7c70cf478c46e06bb9c7e5865"
},
{
"url": "https://git.kernel.org/stable/c/12f8e32a5a389a5d58afc67728c76e61beee1ad4",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/12f8e32a5a389a5d58afc67728c76e61beee1ad4"
},
{
"url": "https://git.kernel.org/stable/c/f6d53d8a2617dd58c89171a6b9610c470ebda38a",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/f6d53d8a2617dd58c89171a6b9610c470ebda38a"
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{
"url": "https://git.kernel.org/stable/c/5ef1d8c1ddbf696e47b226e11888eaf8d9e8e807",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/5ef1d8c1ddbf696e47b226e11888eaf8d9e8e807"
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