cve-2024-39476
Vulnerability from cvelistv5
Published
2024-07-05 06:55
Modified
2024-11-05 09:32
Severity ?
Summary
md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/098d54934814dd876963abfe751c3b1cf7fbe56aMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/151f66bb618d1fd0eeb84acb61b4a9fa5d8bb0faMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f8d5e802d4cedd445f9a89be8c3fd2d0e99024bMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/634ba3c97ec413cb10681c7b196db43ee461ecf4Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa64464c8f4d2ab92f6d0b959a1e0767b829d787Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b32aa95843cac6b12c2c014d40fca18aef24a347Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd2538e5af495b3c747e503db346470fc1ffc447Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e332a12f65d8fed8cf63bedb4e9317bb872b9ac7Mailing List, Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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    "dateReserved": "2024-06-25T14:23:23.746Z",
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La implementaci\u00f3n actual en raid5d() tiene una dependencia extra\u00f1a: 1) md_check_recovery() de raid5d() debe mantener \u0027reconfig_mutex\u0027 para borrar MD_SB_CHANGE_PENDING; 2) raid5d() maneja IO en un bucle muerto, hasta que se emiten todas las IO; 3) IO de raid5d() debe esperar a que se borre MD_SB_CHANGE_PENDING; Este comportamiento se introdujo antes de v2.6 y, como consecuencia, si otro contexto contiene \u0027reconfig_mutex\u0027 y md_check_recovery() no puede actualizar super_block, entonces raid5d() desperdiciar\u00e1 una CPU al 100% mediante el bucle muerto, hasta que \u0027reconfig_mutex\u0027 sea liberado. Consulte la implementaci\u00f3n de raid1 y raid10, solucione este problema omitiendo el problema IO si MD_SB_CHANGE_PENDING todav\u00eda est\u00e1 configurado despu\u00e9s de md_check_recovery(), el hilo del daemon se activar\u00e1 cuando se publique \u0027reconfig_mutex\u0027. Mientras tanto, el problema de bloqueo tambi\u00e9n se solucionar\u00e1.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19\",\"versionEndExcluding\":\"4.19.316\",\"matchCriteriaId\":\"34445C8D-D7E6-4796-B792-C9257E89257B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4\",\"versionEndExcluding\":\"5.4.278\",\"matchCriteriaId\":\"8E2371B0-4787-4038-B526-021D4CF93B31\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"5.10.219\",\"matchCriteriaId\":\"5311C980-4CDF-4C10-8875-F04ED0F03398\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15\",\"versionEndExcluding\":\"5.15.161\",\"matchCriteriaId\":\"E2AB5A01-EFFD-4A24-8CCB-4A016C8C4BB3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.94\",\"matchCriteriaId\":\"B5A86346-2984-4261-AC12-29EACB186000\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.34\",\"matchCriteriaId\":\"AC0C6E24-8240-425A-BD1A-F78E6D3A67FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.9.5\",\"matchCriteriaId\":\"54EDFD02-25E6-4BC8-9AD0-0A59881F400A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/098d54934814dd876963abfe751c3b1cf7fbe56a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/151f66bb618d1fd0eeb84acb61b4a9fa5d8bb0fa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3f8d5e802d4cedd445f9a89be8c3fd2d0e99024b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/634ba3c97ec413cb10681c7b196db43ee461ecf4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aa64464c8f4d2ab92f6d0b959a1e0767b829d787\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b32aa95843cac6b12c2c014d40fca18aef24a347\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cd2538e5af495b3c747e503db346470fc1ffc447\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e332a12f65d8fed8cf63bedb4e9317bb872b9ac7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Mailing List\",\"Patch\"]}]}}"
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