Linux kernel tracing flaw can touch freed memory
A tracing fault in a core part of Linux can make systems unstable.
Summary
In the Linux kernel's tracing code, removing a trace instance at the same time as a module load or unload can make the kernel access memory already freed. Check the CVE record for the affected kernel version ranges.
Affected when
- Persistent tracing instances in use
- Instance removal running at the same time as a module load or unload
What to do
Check that the kernel you run is newer than the fixed release for its branch, and read your distribution's security advisory.
Products and platforms
CVE IDs
Times
First published
First seen