CVE-2026-97919

A flaw was found in the Linux kernel's tracing subsystem. When creating a named histogram trigger, the kernel registers the trigger before completing its setup. If initialization fails, the object is freed without being removed from the global tracking list. A local attacker can exploit this flaw...

UBUNTU-CVE-2026-97935

In the Linux kernel, the following vulnerability has been resolved: tracing: Set the trace clock before registering the histogram trigger histregistertrigger puts the trigger on the global namedtriggers list in cmdops-init, and only then sets the trace clock: if data-cmdops-init ret =...

CVE-2026-97935

In the Linux kernel, the following vulnerability has been resolved: tracing: Set the trace clock before registering the histogram trigger histregistertrigger puts the trigger on the global namedtriggers list in cmdops-init, and only then sets the trace clock: if data-cmdops-init ret =...

CVE-2026-97921 tracing: Free histogram the field rejected for a bad modifier

In the Linux kernel, the following vulnerability has been resolved: tracing: Free histogram the field rejected for a bad modifier Writing a hist trigger whose value or variable carries a modifier that is not allowed there leaks the fields that were built for it. createvalfield takes the field fro...

CVE-2026-97918 tracing: Undo the registration when enabling the histogram trigger fails

In the Linux kernel, the following vulnerability has been resolved: tracing: Undo the registration when enabling the histogram trigger fails Commit 6f86bdeab633 "tracing: Fix bad hist from corrupting namedtriggers list" described how a trigger that is registered but not on file-triggers ends up...

CVE-2026-97918 tracing: Undo the registration when enabling the histogram trigger fails

In the Linux kernel, the following vulnerability has been resolved: tracing: Undo the registration when enabling the histogram trigger fails Commit 6f86bdeab633 "tracing: Fix bad hist from corrupting namedtriggers list" described how a trigger that is registered but not on file-triggers ends up...

CVE-2026-97919

In the Linux kernel, the following vulnerability has been resolved: tracing: Take the reference before publishing the named histogram trigger eventhisttriggernamedinit puts the trigger on the global namedtriggers list and only then takes the reference on the trigger it shares its histogram with:...

PT-2026-98582

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A slab-use-after-free issue exists in the tracing component of the Linux kernel. The problem occurs when enabling a histogram trigger fails, causing a trigger to be freed while it remain...

PT-2026-98599

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A slab-use-after-free issue exists in the Linux kernel tracing subsystem. The hist register trigger function adds a trigger to the global named triggers list during cmd ops-init before t...

UBUNTU-CVE-2023-53560

In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Add histograms to histvars if they have referenced variables Hist triggers can have referenced variables without having direct variables fields. This can be the case if referenced variables are added for trigg...

SUSE CVE-2025-21899

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix bad hist from corrupting namedtriggers list The following commands causes a crash: cd /sys/kernel/tracing/events/rcu/rcucallback echo 'hist:name=bad:keys=commonpid:onmaxbogus.savecommonpid' trigger bash: echo: write...