mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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101 lines
4.2 KiB
JSON
101 lines
4.2 KiB
JSON
{
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"id": "CVE-2024-39477",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-07-05T07:15:10.413",
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"lastModified": "2024-07-08T17:11:05.790",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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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\nmm/hugetlb: do not call vma_add_reservation upon ENOMEM\n\nsysbot reported a splat [1] on __unmap_hugepage_range(). This is because\nvma_needs_reservation() can return -ENOMEM if\nallocate_file_region_entries() fails to allocate the file_region struct\nfor the reservation.\n\nCheck for that and do not call vma_add_reservation() if that is the case,\notherwise region_abort() and region_del() will see that we do not have any\nfile_regions.\n\nIf we detect that vma_needs_reservation() returned -ENOMEM, we clear the\nhugetlb_restore_reserve flag as if this reservation was still consumed, so\nfree_huge_folio() will not increment the resv count.\n\n[1] https://lore.kernel.org/linux-mm/0000000000004096100617c58d54@google.com/T/#ma5983bc1ab18a54910da83416b3f89f3c7ee43aa"
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mm/hugetlb: no llame a vma_add_reservation cuando ENOMEM sysbot inform\u00f3 un splat [1] en __unmap_hugepage_range(). Esto se debe a que vma_needs_reservation() puede devolver -ENOMEM si allocate_file_region_entries() no puede asignar la estructura file_region para la reserva. Verifique eso y no llame a vma_add_reservation() si ese es el caso; de lo contrario, region_abort() y region_del() ver\u00e1n que no tenemos ning\u00fan file_regions. Si detectamos que vma_needs_reservation() devolvi\u00f3 -ENOMEM, borramos el indicador hugetlb_restore_reserve como si esta reserva todav\u00eda estuviera consumida, por lo que free_huge_folio() no incrementar\u00e1 el recuento de resv. [1] https://lore.kernel.org/linux-mm/0000000000004096100617c58d54@google.com/T/#ma5983bc1ab18a54910da83416b3f89f3c7ee43aa"
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"availabilityImpact": "HIGH",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 3.6
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-770"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.9",
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"versionEndExcluding": "6.9.5",
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"matchCriteriaId": "54EDFD02-25E6-4BC8-9AD0-0A59881F400A"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:6.10.0:rc1:*:*:*:*:*:*",
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"matchCriteriaId": "C40DD2D9-90E3-4E95-9F1A-E7C680F11F2A"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:6.10.0:rc2:*:*:*:*:*:*",
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"matchCriteriaId": "54D5209E-E390-45C5-A5D1-C9EDB40819F7"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8daf9c702ee7f825f0de8600abff764acfedea13",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Mailing List",
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"Patch"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/aa998f9dcb34c28448f86e8f5490f20d5eb0eac7",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"tags": [
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"Mailing List",
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"Patch"
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]
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}
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]
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} |