SARA / Free Tools / CVE / CVE-2023-2430

CVE-2023-2430 — A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event

A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat.

CVSS
— —
EPSS
0.01% (top 98.30%)
CWE
CWE-413
Published
2023-07-23T00:00:00.000Z
Last modified
2025-03-06T21:37:09.922Z
CVSS vector
—

01What is this vulnerability?

A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat.

02Affected products

VendorProductVersions
na / kernelKernel Linux prior to Kernel 6.2 RC5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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