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https://github.com/fkie-cad/nvd-json-data-feeds.git
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45 lines
3.6 KiB
JSON
45 lines
3.6 KiB
JSON
{
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"id": "CVE-2023-52668",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-05-17T14:15:09.640",
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"lastModified": "2024-11-21T08:40:19.080",
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"vulnStatus": "Awaiting Analysis",
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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\nbtrfs: zoned: fix lock ordering in btrfs_zone_activate()\n\nThe btrfs CI reported a lockdep warning as follows by running generic\ngeneric/129.\n\n WARNING: possible circular locking dependency detected\n 6.7.0-rc5+ #1 Not tainted\n ------------------------------------------------------\n kworker/u5:5/793427 is trying to acquire lock:\n ffff88813256d028 (&cache->lock){+.+.}-{2:2}, at: btrfs_zone_finish_one_bg+0x5e/0x130\n but task is already holding lock:\n ffff88810a23a318 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}, at: btrfs_zone_finish_one_bg+0x34/0x130\n which lock already depends on the new lock.\n\n the existing dependency chain (in reverse order) is:\n -> #1 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}:\n ...\n -> #0 (&cache->lock){+.+.}-{2:2}:\n ...\n\nThis is because we take fs_info->zone_active_bgs_lock after a block_group's\nlock in btrfs_zone_activate() while doing the opposite in other places.\n\nFix the issue by expanding the fs_info->zone_active_bgs_lock's critical\nsection and taking it before a block_group's lock."
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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: btrfs:zoned: corrige el orden de bloqueo en btrfs_zone_activate() El CI de btrfs inform\u00f3 una advertencia de bloqueo de la siguiente manera al ejecutar generic generic/129. ADVERTENCIA: se detect\u00f3 posible dependencia de bloqueo circular 6.7.0-rc5+ #1 No contaminado ---------------------------------- -------------------- kworker/u5:5/793427 est\u00e1 intentando adquirir el bloqueo: ffff88813256d028 (&cache->lock){+.+.}-{2: 2}, en: btrfs_zone_finish_one_bg+0x5e/0x130 pero la tarea ya mantiene el bloqueo: ffff88810a23a318 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}, en: btrfs_zone_finish_one_bg+0x34/0x130 cuyo bloqueo ya depende del cerradura nueva. la cadena de dependencia existente (en orden inverso) es: -> #1 (&fs_info->zone_active_bgs_lock){+.+.}-{2:2}: ... -> #0 (&cache->lock){+. +.}-{2:2}: ... Esto se debe a que tomamos fs_info->zone_active_bgs_lock despu\u00e9s del bloqueo de un block_group en btrfs_zone_activate() mientras hacemos lo contrario en otros lugares. Solucione el problema expandiendo la secci\u00f3n cr\u00edtica de fs_info->zone_active_bgs_lock y llev\u00e1ndola antes del bloqueo de block_group."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/1908e9d01e5395adff68d9d308a0fb15337e6272",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/6f74989f5909cdec9b1274641f0fa306b15bb476",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b18f3b60b35a8c01c9a2a0f0d6424c6d73971dc3",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/1908e9d01e5395adff68d9d308a0fb15337e6272",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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},
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{
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"url": "https://git.kernel.org/stable/c/6f74989f5909cdec9b1274641f0fa306b15bb476",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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},
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{
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"url": "https://git.kernel.org/stable/c/b18f3b60b35a8c01c9a2a0f0d6424c6d73971dc3",
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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}
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]
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} |