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Among those, mtier also has an additional problem for handling of damon_stop() failures. wsse and prcl also have a problem in their damon_call() failure handling. As a result, memory leaks, next DAMON operation disruptions, and use-after-free can happen. Fix those. Note that only the damon_start() failure caused issues can reliably be reproduced. Reproducing those issues require the admin permission, though. Changes from RFC v3 - RFC v3: https://lore.kernel.org/20260610011420.3018-1-sj@kernel.org - Add damon_Call() failure handling fixes for wsse and prcl. Changes from RFC v2 - RFC v2: https://lore.kernel.org/20260609142119.68120-1-sj@kernel.org - Add damon_start() failure handling fixes for wsse and prcl. Changes from RFC v1 - RFC v1: https://lore.kernel.org/20260609005443.2122-1-sj@kernel.org - Add damon_stop() failure handling fix to the series. SeongJae Park (6): samples/damon/wsse: handle damon_start() failure samples/damon/prcl: handle damon_start() failure samples/damon/mtier: handle damon_start() failure samples/damon/mtier: handle damon_stop() failure samples/damon/wsse: stop and free damon ctx when damon_call() fails samples/damon/prcl: stop and free damon ctx when damon_call() fails samples/damon/mtier.c | 14 ++++++++++++-- samples/damon/prcl.c | 11 +++++++++-- samples/damon/wsse.c | 11 +++++++++-- 3 files changed, 30 insertions(+), 6 deletions(-) base-commit: 1fe919b2e7b6455d0b976d75dcbe44324361a83b -- 2.47.3