{"id":"CVE-2024-0582","title":"Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap","summary":"A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate …","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","cvssSource":"cna","cwe":["CWE-416"],"vendor":"Red Hat","product":"kernel","affected":["kernel (all versions)","kernel","kernel","kernel-rt","kernel","kernel-rt","kernel","kernel-rt"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-06-17T14:43:44.265639Z"},"exploitAvailable":true,"published":"2024-01-16","updated":"2026-11-04","sourceUpdated":"2026-11-04T21:07:44.166Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-0582","references":[{"url":"https://access.redhat.com/security/cve/CVE-2024-0582"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=2504"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2254050","label":"RHBZ#2254050"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c392cbecd8eca4c53f2bf508731257d9d0a21c2d"}],"tags":["cve.org","exploit-available"],"epss":0.12836,"epssPercentile":0.96304,"exploits":{"github":8,"githubRepos":["https://github.com/ysanatomic/io_uring_LPE-CVE-2024-0582","https://github.com/Forsaken0129/CVE-2024-0582","https://github.com/0ptyx/cve-2024-0582"],"checkedAt":"2026-11-05T21:36:37.213Z"},"ingestedAt":"2026-11-05T21:36:00.596Z","slug":"CVE-2024-0582","body":"## Overview\n\nA memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.\n\n## Affected\n\n- `kernel (all versions)`\n- `kernel`\n- `kernel`\n- `kernel-rt`\n- `kernel`\n- `kernel-rt`\n- `kernel`\n- `kernel-rt`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":42.9,"likelihood":2.6,"exploitation":12,"ransomware":0},"changes":[]}