kernel: io_uring/poll: fix signed comparison in io_poll_get_ownership()

A flaw was found in the Linux kernel's iouring/poll component. A logic error exists in the iopollgetownership function due to an incorrect signed comparison. This flaw prevents the necessary slowpath from being triggered when the IOPOLLCANCELFLAG is set, potentially leading to unexpected behavior...

SUSE CVE-2026-52933

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

CVE-2026-53124

In the Linux kernel, the following vulnerability has been resolved: ublk: reset per-IO canceled flag on each fetch If a ublk server starts recovering devices but dies before issuing fetch commands for all IOs, cancellation of the fetch commands that were successfully issued may never complete. Th...

CVE-2026-52933

A flaw was found in the Linux kernel's iouring/poll component. A logic error exists in the iopollgetownership function due to an incorrect signed comparison. This flaw prevents the necessary slowpath from being triggered when the IOPOLLCANCELFLAG is set, potentially leading to unexpected behavior...

CVE-2026-52933

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

UBUNTU-CVE-2026-52933

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

CVE-2026-52933

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

EUVD-2026-38703

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

CVE-2026-52933

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-;pollrefs = IOPOLLREFBIAS...

CVE-2026-52933 io_uring/poll: fix signed comparison in io_poll_get_ownership()

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

CVE-2026-52933

CVE-2026-52933 affects the Linux kernel’s io_uring/poll component. The root cause is a signed comparison in io_poll_get_ownership() where atomic_read(&req->poll_refs) is compared to IO_POLL_REF_BIAS; when IO_POLL_CANCEL_FLAG (BIT(31)) is set, the value becomes negative, causing the slowpath to...

CVE-2026-52933 io_uring/poll: fix signed comparison in io_poll_get_ownership()

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for the slowpath: if unlikelyatomicread&req-pollrefs = IOPOLLREFBIAS...

Linux Distros Unpatched Vulnerability : CVE-2026-52933

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iouring/poll: fix signed comparison in iopollgetownership iopollgetownership uses a signed comparison to check whether pollrefs has reached the threshold for th...

PT-2026-52018

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ublk component where the per-IO canceled flag may remain set if a ublk server dies after issuing some, but not all, fetch commands during device recovery. Because...

PT-2026-51726

Name of the Vulnerable Software and Affected Versions Linux kernel versions from November 2022 through April 2026 Description An issue exists in the io poll get ownership function within the io uring/poll component. The function uses a signed comparison to determine if poll refs has reached the...