CVE-2026-43224
kernel: io_uring/zcrx: fix sgtable leak on mapping failures
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · May 6, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's io_uring/zcrx subsystem. Under specific conditions, a failure in memory mapping operations can result in a scatter-gather table (sgtable), which manages memory regions, not being properly freed. This memory leak could lead to resource exhaustion and potentially cause system instability or a denial of service (DoS).
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-772 · Missing Release of Resource after Effective Lifetime