CVE-2023-52932

{"id": "CVE-2023-52932", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-03-27T17:15:42.930", "references": [{"url": "https://git.kernel.org/stable/c/29f0349c5c76b627fe06b87d4b13fa03a6ce8e64", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/30187be29052bba9203b0ae2bdd815e0bc2faaab", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/387217b97e99699c34e6d95ce2b91b327fcd853e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/49178d4d61e78aed8c837dfeea8a450700f196e2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5dbe1ebd56470d03b78fc31491a9e4d433106ef2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7717fc1a12f88701573f9ed897cc4f6699c661e3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d49c85a1913385eed46dd16a25ad0928253767f0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-667"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/swapfile: add cond_resched() in get_swap_pages()\n\nThe softlockup still occurs in get_swap_pages() under memory pressure. 64\nCPU cores, 64GB memory, and 28 zram devices, the disksize of each zram\ndevice is 50MB with same priority as si. Use the stress-ng tool to\nincrease memory pressure, causing the system to oom frequently.\n\nThe plist_for_each_entry_safe() loops in get_swap_pages() could reach tens\nof thousands of times to find available space (extreme case:\ncond_resched() is not called in scan_swap_map_slots()). Let's add\ncond_resched() into get_swap_pages() when failed to find available space\nto avoid softlockup."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/swapfile: a\u00f1adir cond_resched() en get_swap_pages() El bloqueo suave todav\u00eda ocurre en get_swap_pages() bajo presi\u00f3n de memoria. 64 n\u00facleos de CPU, 64 GB de memoria y 28 dispositivos zram, el tama\u00f1o del disco de cada dispositivo zram es de 50 MB con la misma prioridad que si. Utilice la herramienta stress-ng para aumentar la presi\u00f3n de memoria, lo que hace que el sistema se sobrecargue con frecuencia. Los bucles plist_for_each_entry_safe() en get_swap_pages() podr\u00edan alcanzar decenas de miles de veces para encontrar espacio disponible (caso extremo: cond_resched() no se llama en scan_swap_map_slots()). Agreguemos cond_resched() a get_swap_pages() cuando no se pueda encontrar espacio disponible para evitar el bloqueo suave."}], "lastModified": "2025-10-01T20:17:11.703", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C3601A65-E0A1-4B9E-9AE3-31871BA7A14B", "versionEndExcluding": "4.14.306"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC86F278-A337-4A8A-A7BB-758898345802", "versionEndExcluding": "4.19.273", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C6E0696-3702-4B0C-A102-2753BDC8C3D3", "versionEndExcluding": "5.4.232", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "12258A3F-04BD-49C9-9C6B-D3C1945E8910", "versionEndExcluding": "5.10.168", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "98FAC10E-42A0-4372-B1A0-A49CF672890E", "versionEndExcluding": "5.15.93", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "535D03F4-DA02-49FE-934E-668827E6407B", "versionEndExcluding": "6.1.11", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A127C155-689C-4F67-B146-44A57F4BFD85"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D34127CC-68F5-4703-A5F6-5006F803E4AE"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AB8D555-648E-4F2F-98BD-3E7F45BD12A8"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}