CVE-2023-6560
Kernel: io_uring out of boundary memory access in __io_uaddr_map()
MEDIUM
5.5
CVSS Score
Published: December 8, 2023 at 11:56 PM UTC
Updated: June 17, 2026 at 06:50 AM UTC
3 products affected across 3 vendorsLinux KernelFedoraKernel
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
Description
An out-of-bounds memory access flaw was found in the io_uring SQ/CQ rings functionality in the Linux kernel. This issue could allow a local user to crash the system.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
60%
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
VDB Entryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2023-6560Issue Trackingx_refsource_REDHAT
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2253249Mailing ListPatch
Source: [email protected]
https://patchwork.kernel.org/project/io-uring/patch/[email protected]/CVSS
5.5MEDIUMredhat
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-823CWE-119
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