{"id":"CVE-2024-57875","title":"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 wh…","summary":"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 wh…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 6.12.5"],"patched":["linux_kernel 6.12.5"],"published":"2025-01-11","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:03.613","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-57875","references":[{"url":"https://git.kernel.org/stable/c/493326c4f10cc71a42c27fdc97ce112182ee4cbc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d7cb6d7414ea1b33536fa6d11805cb8dceec1f97","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00195,"epssPercentile":0.09099,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:41:37.194951Z"},"ingestedAt":"2026-10-15T22:48:25.461Z","slug":"CVE-2024-57875","body":"## Overview\n\nIn 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\n## Affected\n\n- `linux_kernel < 6.12.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.12.5`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}