Linux Distros Unpatched Vulnerability : CVE-2026-43174

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/zcrx: fix post open error handling Closing a queue doesn't guarantee that all associated page pools are terminated right away, let the refcounting do th...

CVE-2026-43224 io_uring/zcrx: fix sgtable leak on mapping failures

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix sgtable leak on mapping failures In an unlikely case when iopopulateareadma fails, which could only happen on a PAGEPOOL32BITARCHWITH64BITDMA machine, iozcrxmaparea will have an initialised and not freed table. ...

CVE-2026-43121 io_uring/zcrx: fix user_ref race between scrub and refill paths

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix userref race between scrub and refill paths The iozcrxputniovuref function uses a non-atomic check-then-decrement pattern atomicread followed by separate atomicdec to manipulate userrefs. This is serialized...

PT-2026-37461

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the io uring/zcrx component on SMP systems between the scrub and refill paths. The io zcrx put niov uref function employs a non-atomic check-then-decrement...

PT-2026-37514

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the io uring/zcrx component where closing a queue does not guarantee the immediate termination of all associated page pools. The system incorrectly releases the zcrx...