CVE-2024-0562
Kernel: use-after-free after removing device in wb_inode_writeback_end in mm/page-writeback.c
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.
| CWE | CWE-416 |
| Published | Jan 15, 2024 |
| Last Updated | Nov 15, 2025 |
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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 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
All versions affected 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/errata/RHSA-2024:0412 access.redhat.com: https://access.redhat.com/security/cve/CVE-2024-0562 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2258475 patchwork.kernel.org: https://patchwork.kernel.org/project/linux-mm/patch/[email protected]/