CVE-2025-40021 tracing: dynevent: Add a missing lockdown check on dynevent

In the Linux kernel, the following vulnerability has been resolved: tracing: dynevent: Add a missing lockdown check on dynevent Since dynamicevents interface on tracefs is compatible with kprobeevents and uprobeevents, it should also check the lockdown status and reject if it is set...

CVE-2022-50255: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix reading strings from synthetic events The follow commands caused a crash: cd /sys/kernel/tracing echo 's:open char file' dynamicevents echo 'hist:keys=commonpid:file=filename:onchange$file.traceopen,$file'...