CVE-2026-43224

MEDIUM

io_uring/zcrx: fix sgtable leak on mapping failures

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix sgtable leak on mapping failures In an unlikely case when io_populate_area_dma() fails, which could only happen on a PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA machine, io_zcrx_map_area() will have an initialised and not freed table. It was supposed to be cleaned up in the error path, but !is_mapped prevents that.

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (9)
Linux/Linux < 6.18
Linux/Linux 439a98b972fbb1991819b5367f482cd4161ba39c - a983aae397767e9da931128ff2b5bf9066513ce3
Linux/Linux 439a98b972fbb1991819b5367f482cd4161ba39c - ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60
Linux/Linux 439a98b972fbb1991819b5367f482cd4161ba39c - f1ae403324311e143ef20e53cf9a5f01e312f7c9
Linux/Linux 6.18
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 7.0
linux/linux_kernel 6.18 - 6.18.16
Published May 06, 2026
Tracked Since May 06, 2026