CVE-2026-68176 — tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PC…
Published: 2026-08-10 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev If the mmio_pipe_open() fails to find a PCI device, the hiter->dev will be assigned to NULL. The mmiotrace read() function dereferences the hiter->dev if hiter exists. Change the test of the read to not only check hiter being NULL, but also the hiter->dev before dereferencing it.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7