CVE-2024-0582
Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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 their privileges on the system.
| CWE | CWE-416 |
| Published | Jan 16, 2024 |
| Last Updated | Nov 20, 2025 |
Stay Ahead of the Next One
Get instant alerts for
Be the first to know when new high vulnerabilities are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2024-0582 bugs.chromium.org: https://bugs.chromium.org/p/project-zero/issues/detail?id=2504 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2254050 git.kernel.org: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c392cbecd8eca4c53f2bf508731257d9d0a21c2d openwall.com: http://www.openwall.com/lists/oss-security/2024/04/24/3
Credits
Red Hat would like to thank Jann Horn (Google Project Zero) for reporting this issue.