CVE-2026-23263

io_uring/zcrx: fix page array leak

Published Mar 18, 2026 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
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.
Title io_uring/zcrx: fix page array leak
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Linux
Published
Updated
May 11, 2026, 10:03 PM
Reserved
Jan 13, 2026, 3:37 PM
Status
Analyzed
Published
Mar 18, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:21 AM
Severity
Public date
Mar 18, 2026, 12:00 AM