vulnerability
Red Hat: CVE-2025-21863: kernel: io_uring: prevent opcode speculation (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | Mar 12, 2025 | Jul 9, 2025 | Feb 3, 2026 |
Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
Mar 12, 2025
Added
Jul 9, 2025
Modified
Feb 3, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
io_uring: prevent opcode speculation
sqe->opcode is used for different tables, make sure we santitise it
against speculations.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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