Merge tag 'probes-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceHEADmaster

Pull probes fixes from Masami Hiramatsu:
 "fprobe fixes and spelling typos:

   - Fix NULL pointer dereference in fprobe_fgraph_entry(). Prevent
     general protection faults by checking shadow-stack reservation
     bounds. Skip mid-flight registered fprobes that were not counted
     during sizing.

  eprobe: fix string pointer extraction

   - Correct the casting of string pointers read from the ringbuffer to
     prevent truncation of base event pointer variables when
     dereferencing FILTER_PTR_STRING fields.

  tracing/probes: clean up argument parsing and BTF helper logic

   - Make the $ prefix mandatory for comm access: Require the $ prefix
     for special fetcharg variables like $comm and $COMM, preventing
     naming conflicts with regular BTF-based event fields.

   - Fix double addition of offset for @+FOFFSET: Clear the temporary
     offset variable after setting the FETCH_OP_FOFFS instruction to
     avoid applying the offset multiple times.

   - Remove WARN_ON_ONCE from parse_btf_arg: Prevent triggering a kernel
     warning via user-space input when creating a kprobe event on a raw
     address.

   - Fix typo in a log message: Correct a spelling error ("$-valiable")
     in trace probe log messages.

  samples/trace_events: improve error checking

   - Validate the thread pointer returned from kthread_run() in the
     trace events sample code to properly handle thread creation
     failures"

* tag 'probes-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/probes: Make the $ prefix mandatory for comm access
  tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()
  tracing/probes: Fix double addition of offset for @+FOFFSET
  tracing: eprobe: read the complete FILTER_PTR_STRING pointer
  tracing/events: Fix to check the simple_tsk_fn creation
  tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg
  tracing: probes: fix typo in a log message

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