CVE-2026-23263
io_uring/zcrx: fix page array leak
MEDIUM
5.5
CVSS Score
Published: March 18, 2026 at 05:41 PM UTC
Updated: June 17, 2026 at 10:21 AM UTC
1 product affected across 1 vendorLinux Kernel
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix page array leak d9f595b9a65e ("io_uring/zcrx: fix leaking pages on sg init fail") fixed a page leakage but didn't free the page array, release it as well.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
6.17 ≤ v < 6.18.106.17 ≤ v < 6.196.176.19 rc16.19 rc26.19 rc36.19 rc46.19 rc56.19 rc66.19 rc76.19 rc8b84621d96ee0221e0bfbf9f477bbec7a5077c464
Vendor states this is fixed in 0ae91d8ab70922fb74c22c20bedcb69459579b1c (fixed)
Vendor states this is fixed in 64cf3016234ce8a6e4195ed1b2d9e2a1ae41b57d (fixed)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.18.10 (unaffected)
Vendor states this is fixed in 6.19 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-401
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