{"uuid": "51fa1688-4cc0-4d41-864a-18ea05023696", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2024-57875", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/1320", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2024-57875\n\ud83d\udd39 Description: In the Linux kernel, the following vulnerability has been resolved:\n\nblock: RCU protect disk->conv_zones_bitmap\n\nEnsure that a disk revalidation changing the conventional zones bitmap\nof a disk does not cause invalid memory references when using the\ndisk_zone_is_conv() helper by RCU protecting the disk->conv_zones_bitmap\npointer.\n\ndisk_zone_is_conv() is modified to operate under the RCU read lock and\nthe function disk_set_conv_zones_bitmap() is added to update a disk\nconv_zones_bitmap pointer using rcu_replace_pointer() with the disk\nzone_wplugs_lock spinlock held.\n\ndisk_free_zone_resources() is modified to call\ndisk_update_zone_resources() with a NULL bitmap pointer to free the disk\nconv_zones_bitmap. disk_set_conv_zones_bitmap() is also used in\ndisk_update_zone_resources() to set the new (revalidated) bitmap and\nfree the old one.\n\ud83d\udccf Published: 2025-01-11T14:49:01.655Z\n\ud83d\udccf Modified: 2025-01-11T14:49:01.655Z\n\ud83d\udd17 References:\n1. https://git.kernel.org/stable/c/493326c4f10cc71a42c27fdc97ce112182ee4cbc\n2. https://git.kernel.org/stable/c/d7cb6d7414ea1b33536fa6d11805cb8dceec1f97", "creation_timestamp": "2025-01-11T15:04:37.000000Z"}