[PATCH 0/4] perf tools: Fix memory issues

Michalis Niarchos <[email protected]> Mon, 03 Aug 2026 12:33:19 +0200
Newsgroups org.kernel.feeds.b4-sent,org.kernel.vger.linux-kernel,org.kernel.vger.linux-perf-users
Message-ID <[email protected]>
Running:
  $ perf kvm stat record -a sleep 10

gives this output:
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 1.361 MB perf.data.guest ]
  double free or corruption (!prev)

In the process of resolving this, I came across some memory leaks.

Signed-off-by: Michalis Niarchos <[email protected]>
---
Michalis Niarchos (4):
      perf tools: Fix memory leak in cmd_kvm()
      perf tools: Fix memory leak in kvm_events_report()
      perf tools: Fix double free and memory leak in kvm_events_record()
      perf tools: Fix memory leak in cmd_kvm()

 tools/perf/builtin-kvm.c | 63 ++++++++++++++++++++++++++++--------------------
 1 file changed, 37 insertions(+), 26 deletions(-)
---
base-commit: 2162d9b24ba1a9a402baabe5382b33e792aa074f
change-id: 20260731-perf-kvm-fixes-a17f0aa048ad

Best regards,
--  
Michalis Niarchos <[email protected]>