From: Eric Dumazet <edumazet@xxxxxxxxxx> Subject: mm/madvise: fix memory leak from process_madvise The early return in process_madvise() will produce a memory leak. Fix it. Link: https://lkml.kernel.org/r/20201116155132.GA3805951@xxxxxxxxxx Fixes: ecb8ac8b1f14 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API") Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx> Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/madvise.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/madvise.c~mm-madvise-fix-memory-leak-from-process_madvise +++ a/mm/madvise.c @@ -1231,8 +1231,6 @@ SYSCALL_DEFINE5(process_madvise, int, pi ret = total_len - iov_iter_count(&iter); mmput(mm); - return ret; - release_task: put_task_struct(task); put_pid: _
