CVE-2026-23473

A flaw was found in the Linux kernel's iouring/poll subsystem. A race condition can occur when a socket performs send and shutdown operations in quick succession. This can cause a multishot receive operation to hang indefinitely, leading to a Denial of Service DoS for affected systems...

EUVD-2026-18746

In the Linux kernel, the following vulnerability has been resolved: iouring/poll: fix multishot recv missing EOF on wakeup race When a socket send and shutdown happen back-to-back, both fire wake-ups before the receiver's taskwork has a chance to run. The first wake gets poll ownership pollrefs=1...

CVE-2026-23473

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

UBUNTU-CVE-2026-23473

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2026-23473

The CVE-2026-23473 issue affects the Linux kernel io_uring/poll path. A race occurs when a socket send and shutdown() wake up the poll loop back-to-back; the first wake assigns poll ownership (poll_refs=1) and the second increments to 2. io_poll_check_events() calls io_poll_issue(), which perform...

CVE-2026-23473

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CVE-2023-54030

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

SUSE CVE-2023-54030

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

CVE-2023-54030

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

CVE-2023-54030

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

UBUNTU-CVE-2023-54030

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

CVE-2023-54030 io_uring/net: don't overflow multishot recv

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

CVE-2023-54030 io_uring/net: don't overflow multishot recv

In the Linux kernel, the following vulnerability has been resolved: iouring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task...

CVE-2023-54030

Summary: CVE-2023-54030 affects the Linux kernel’s io_uring/net path. The issue is an overflow of multishot receive CQEs, which can lead to degraded performance and, in the worst case, OOM the task. The vulnerability has been resolved in the Linux kernel by upstream fixes. What changed: The patch...

kernel: io_uring/net: don't overflow multishot recv

A flaw was found in the Linux kernel's iouring subsystem. When using multishot receive operations, completion queue entries CQEs can overflow without proper limits. This can lead to excessive memory consumption, performance degradation, and in worst cases, an out-of-memory OOM condition for the...