232 lines
11 KiB
JSON
232 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-52659",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-03-07T14:49:46.884Z",
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"datePublished": "2024-05-17T12:08:36.098Z",
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"dateUpdated": "2026-05-11T19:31:13.746Z"
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},
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:31:13.746Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type\n\nOn 64-bit platforms, the pfn_to_kaddr() macro requires that the input\nvalue is 64 bits in order to ensure that valid address bits don't get\nlost when shifting that input by PAGE_SHIFT to calculate the physical\naddress to provide a virtual address for.\n\nOne such example is in pvalidate_pages() (used by SEV-SNP guests), where\nthe GFN in the struct used for page-state change requests is a 40-bit\nbit-field, so attempts to pass this GFN field directly into\npfn_to_kaddr() ends up causing guest crashes when dealing with addresses\nabove the 1TB range due to the above.\n\nFix this issue with SEV-SNP guests, as well as any similar cases that\nmight cause issues in current/future code, by using an inline function,\ninstead of a macro, so that the input is implicitly cast to the\nexpected 64-bit input type prior to performing the shift operation.\n\nWhile it might be argued that the issue is on the caller side, other\narchs/macros have taken similar approaches to deal with instances like\nthis, such as ARM explicitly casting the input to phys_addr_t:\n\n e48866647b48 (\"ARM: 8396/1: use phys_addr_t in pfn_to_kaddr()\")\n\nA C inline function is even better though.\n\n[ mingo: Refined the changelog some more & added __always_inline. ]"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/x86/include/asm/page.h"
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],
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"versions": [
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{
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"version": "6c3211796326a9d35618b866826ca556c8f008a8",
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"lessThan": "325956b0173f11e98f90462be4829a8b8b0682ce",
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"status": "affected",
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},
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"version": "6c3211796326a9d35618b866826ca556c8f008a8",
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"lessThan": "7e1471888a5e6e846e9b4d306e5327db2b58e64e",
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"status": "affected",
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"lessThan": "814305b5c23cb815ada68d43019f39050472b25f",
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"lessThan": "8e5647a723c49d73b9f108a8bb38e8c29d3948ea",
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"status": "affected",
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}
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]
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},
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{
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"product": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/x86/include/asm/page.h"
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],
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"versions": [
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{
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"version": "6.5",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.5",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.23",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7.11",
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"lessThanOrEqual": "6.7.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.8.2",
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"lessThanOrEqual": "6.8.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.9",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
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"negate": false,
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.6.23"
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"url": "https://git.kernel.org/stable/c/325956b0173f11e98f90462be4829a8b8b0682ce"
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"url": "https://git.kernel.org/stable/c/7e1471888a5e6e846e9b4d306e5327db2b58e64e"
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"url": "https://git.kernel.org/stable/c/814305b5c23cb815ada68d43019f39050472b25f"
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{
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"url": "https://git.kernel.org/stable/c/8e5647a723c49d73b9f108a8bb38e8c29d3948ea"
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}
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],
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"title": "x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type",
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"adp": [
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-52659",
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"role": "CISA Coordinator",
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"options": [
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{
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"version": "2.0.3",
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"timestamp": "2024-05-21T15:56:17.694229Z"
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"dateUpdated": "2024-06-04T17:23:47.671Z"
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