The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check for NULL cpu_buffer     in ring_buffer_wake_waiters() On some machines the number of listed CPUs may be bigger than the actual     CPUs that exist. The tracing subsystem allocates a per_cpu directory with access to the per CPU ring     buffer via a cpuX file. But to save space, the ring buffer will only allocate buffers for online CPUs,     even though the CPU array will be as big as the nr_cpu_ids. With the addition of waking waiters on the     ring buffer when closing the file, the ring_buffer_wake_waiters() now needs to make sure that the buffer     is allocated (with the irq_work allocated with it) before trying to wake waiters, as it will cause a NULL     pointer dereference. While debugging this, I added a NULL check for the buffer itself (which is OK to do),     and also NULL pointer checks against buffer->buffers (which is not fine, and will WARN) as well as making     sure the CPU number passed in is within the nr_cpu_ids (which is also not fine if it isn't). Bugzilla:
    https://bugzilla.opensuse.org/show_bug.cgi?id=1204705 (CVE-2022-49889)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2022-49889

medium Nessus Plugin ID 250061

Version 1.7

Version 1.6

Version 1.1

Version 1.7 Nov 7, 2026, 4:01 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202611070401
Version 1.6 Jul 18, 2026, 3:00 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:U/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:U/RC:C") Detection (updated detection logic) Plugin Feed: 202607181500
Version 1.1 Aug 15, 2025, 7:38 PM New Plugin Feed: 202508151938