← CVE Intelligence

CVE-2026-43224

io_uring/zcrx: fix sgtable leak on mapping failures PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 439a98b972fbb1991819b5367f482cd4161ba39c before f1ae403324311e143ef20e53cf9a5f01e312f7c9; affected 439a98b972fbb1991819b5367f482cd4161ba39c before ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60; affected 439a98b972fbb1991819b5367f482cd4161ba39c before a983aae397767e9da931128ff2b5bf9066513ce3
Linux / Linuxaffected 6.18; unaffected 0 before 6.18; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References