CVE-2026-99140

A flaw was found in the Linux kernel's tracing subsystem. A local user with access to the tracing interface can cause a Denial of Service DoS due to a race condition when attaching histogram triggers to filtered events. Under specific timing conditions, buffered trace events are processed without...

CVE-2026-99141

A flaw was found in the Linux kernel's tracing subsystem. This vulnerability allows a local user with access to tracing controls to cause a Denial of Service DoS by triggering a kernel crash. When switching tracers, the kernel leaves trace flags unassigned if the new tracer lacks default flags. I...

CVE-2026-99143

A flaw was found in the Linux kernel's tracing subsystem. A local attacker could cause a Denial of Service DoS or memory corruption by exploiting an out-of-bounds memory access vulnerability during filter parsing. The predicate parsing mechanism improperly calculates boundary limits for event...

CVE-2026-99142

A flaw was found in the Linux kernel's tracing subsystem. In the event filter parser, insufficient boundary checks allow the operator stack to be written past its allocated limit. A local attacker could exploit this vulnerability by submitting a specially crafted trace filter expression, triggeri...

CVE-2026-90014

A flaw was found in the Linux kernel's tracing subsystem. The showeventfilters and showeventtriggers files, which display event filters and triggers, do not correctly maintain a reference to the trace array. This allows the trace array to be freed while a user is actively reading these files...

CVE-2026-90013

A flaw was found in the Linux kernel's tracing subsystem. When an options file is opened, it fails to properly manage references to the associated trace array. This oversight allows a local attacker to trigger a use-after-free condition by removing the trace array instance while the options file ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: tracing: Fixed an out-of-bounds write in traceseqtobuffer. syzbot reported this bug: ================================================================== Bug: KASAN: Out-of-bounds access in traceseqtobuffer in...

CVE-2026-97936

A flaw was found in the Linux kernel's tracing subsystem. A local user with permissions to configure event triggers could cause a Denial of Service DoS or memory corruption by applying a stacktrace modifier to an unsupported field. Because the kernel fails to validate the field type, it performs ...

CVE-2026-97935

A flaw was found in the Linux kernel's tracing subsystem. A local user with access to configure event triggers can trigger a use-after-free condition, leading to a system crash, Denial of Service DoS, or potential privilege escalation. This issue occurs when registering a named histogram trigger...

CVE-2026-97934

A flaw was found in the Linux kernel. An unbounded memory copy vulnerability exists in the tracing subsystem when processing event histogram keys like STACKTRACE due to improper field pointer handling. A local user with access to the kernel tracing interface can exploit this flaw by setting a...

CVE-2026-97933

A flaw was found in the Linux kernel's tracing subsystem. A race condition can occur when opening a tracer option file while the corresponding trace instance is being removed, causing the kernel to access memory that has already been released. A local user could exploit this use-after-free...

CVE-2026-97932

A flaw was found in the Linux kernel's tracing subsystem. A use-after-free vulnerability occurs when an event trigger performs deferred cleanup while a tracing instance is removed, leading to the access of already freed memory. A local user could exploit this flaw to cause memory corruption,...

CVE-2026-97923

A flaw was found in the Linux kernel's tracing subsystem. When initialization of a histogram variable reference fails during trace event configuration, the allocated memory is not properly released. A local user with administrative or tracing privileges can exploit this vulnerability by repeatedl...

CVE-2026-97924

A flaw was found in the Linux kernel's tracing subsystem. When attempting to remove a user-defined trace event, the kernel destroys the event's field list before confirming whether unregistering the event succeeds. If event removal fails because the event is still enabled or active, the event...

CVE-2026-97922

A flaw was found in the Linux kernel's tracing subsystem. This vulnerability allows a privileged local user to cause a Denial of Service DoS through memory exhaustion. By repeatedly creating and removing histogram event triggers that reference the same variable multiple times, the kernel fails to...

CVE-2026-97921

A flaw was found in the Linux kernel's tracing subsystem. When configuring event histogram triggers, specifying an unpermitted modifier for a value or variable fails to release previously allocated memory on error. A local user with tracing access can exploit this flaw by repeatedly submitting...

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...

CVE-2026-97918

A flaw was found in the Linux kernel's tracing subsystem. When enabling a histogram event trigger fails, improper registration cleanup can leave an already freed trigger referenced on an internal tracking list. A local attacker with permission to configure event tracing could exploit this flaw to...

CVE-2026-98032

A flaw was found in the Linux kernel's tracing subsystem. A race condition occurs when concurrent subbuffer resizing takes place while raw trace data is being read. A local user could exploit this flaw to cause a Denial of Service DoS or disclose uninitialized kernel memory due to stale buffer si...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.4 contains security vulnerabilities. These vulnerabilities stem from improper handling of the STACKTRACE histogram key by the tracing subsystem. As a result, data is read from offset 0 and used as the length for unbounded memcopy operations, leading to memory corruption...