{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T18:26:44.533","vulnerabilities":[{"cve":{"id":"CVE-2024-43914","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-08-26T11:15:05.380","lastModified":"2025-11-03T22:18:22.923","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: avoid BUG_ON() while continue reshape after reassembling\n\nCurrently, mdadm support --revert-reshape to abort the reshape while\nreassembling, as the test 07revert-grow. However, following BUG_ON()\ncan be triggerred by the test:\n\nkernel BUG at drivers/md/raid5.c:6278!\ninvalid opcode: 0000 [#1] PREEMPT SMP PTI\nirq event stamp: 158985\nCPU: 6 PID: 891 Comm: md0_reshape Not tainted 6.9.0-03335-g7592a0b0049a #94\nRIP: 0010:reshape_request+0x3f1/0xe60\nCall Trace:\n <TASK>\n raid5_sync_request+0x43d/0x550\n md_do_sync+0xb7a/0x2110\n md_thread+0x294/0x2b0\n kthread+0x147/0x1c0\n ret_from_fork+0x59/0x70\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nRoot cause is that --revert-reshape update the raid_disks from 5 to 4,\nwhile reshape position is still set, and after reassembling the array,\nreshape position will be read from super block, then during reshape the\nchecking of 'writepos' that is caculated by old reshape position will\nfail.\n\nFix this panic the easy way first, by converting the BUG_ON() to\nWARN_ON(), and stop the reshape if checkings fail.\n\nNoted that mdadm must fix --revert-shape as well, and probably md/raid\nshould enhance metadata validation as well, however this means\nreassemble will fail and there must be user tools to fix the wrong\nmetadata."},{"lang":"es","value":"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: md/raid5: evite BUG_ON() mientras continúa la remodelación después del reensamblaje. Actualmente, mdadm admite --revert-reshape para cancelar la remodelación mientras se reensambla, como muestra la prueba 07revert-grow. Sin embargo, la prueba puede activar el siguiente BUG_ON(): kernel ERROR en drivers/md/raid5.c:6278! código de operación no válido: 0000 [#1] PREEMPT SMP PTI sello de evento irq: 158985 CPU: 6 PID: 891 Comm: md0_reshape No contaminado 6.9.0-03335-g7592a0b0049a #94 RIP: 0010:reshape_request+0x3f1/0xe60 Seguimiento de llamadas:  raid5_sync_request+0x43d/0x550 md_do_sync+0xb7a/0x2110 md_thread+0x294/0x2b0 kthread+0x147/0x1c0 ret_from_fork+0x59/0x70 ret_from_fork_asm+0x1a/0x30  La causa principal es que --revert-resha pe actualizar los raid_disks de 5 a 4, mientras la posición de remodelación aún está establecida, y después de volver a ensamblar la matriz, la posición de remodelación se leerá desde el superbloque, luego, durante la remodelación, fallará la verificación de 'writepos' calculada por la posición de remodelación anterior. Primero solucione este pánico de la manera más fácil, convirtiendo BUG_ON() en WARN_ON() y detenga la remodelación si las comprobaciones fallan. Se señaló que mdadm también debe corregir --revert-shape, y probablemente md/raid también debería mejorar la validación de metadatos; sin embargo, esto significa que el reensamblaje fallará y debe haber herramientas de usuario para corregir los metadatos incorrectos."}],"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","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.320","matchCriteriaId":"0B4EF915-550B-45E5-B2CA-648FEACD60FC"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.282","matchCriteriaId":"A8961D98-9ACF-4188-BA88-44038B14BC28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.224","matchCriteriaId":"5CCEDF13-293D-4E64-B501-4409D0365AFE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.165","matchCriteriaId":"B4E2B568-3171-41DE-B519-F2B1A3600D94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.105","matchCriteriaId":"89BEB24B-0F37-4C92-A397-564DA7CD8EE9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.46","matchCriteriaId":"FA11941E-81FB-484C-B583-881EEB488340"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.5","matchCriteriaId":"D074AE50-4A5E-499C-A2FD-75FD60DEA560"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2c92f8c1c456d556f15cbf51667b385026b2e6a0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/305a5170dc5cf3d395bb4c4e9239bca6d0b54b49","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3b33740c1750a39e046339ff9240e954f0156707","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/4811d6e5d9f4090c3e0ff9890eb24077108046ab","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6b33c468d543f6a83de2d61f09fec74b27e19fd2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/775a9ba16c9ffe98fe54ebf14e55d5660f2bf600","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/bf0ff69a42a3d2d46876d0514ecf13dffc516666","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/c384dd4f1fb3b14a2fd199360701cc163ea88705","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}