The patch titled Subject: damon/sysfs: fix possible memleak on damon_sysfs_add_target has been added to the -mm mm-hotfixes-unstable branch. Its filename is damon-sysfs-fix-possible-memleak-on-damon_sysfs_add_target.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: Levi Yun ppbuk5246@gmail.com Subject: damon/sysfs: fix possible memleak on damon_sysfs_add_target Date: Mon, 26 Sep 2022 16:06:11 +0000

When damon_sysfs_add_target couldn't find proper task, New allocated damon_target structure isn't registered yet, So, it's impossible to free new allocated one by damon_sysfs_destroy_targets.

By calling daemon_add_target as soon as allocating new target, Fix this possible memory leak.

Link: https://lkml.kernel.org/r/20220926160611.48536-1-sj@kernel.org Fixes: a61ea561c871 ("mm/damon/sysfs: link DAMON for virtual address spaces monitoring") Signed-off-by: Levi Yun ppbuk5246@gmail.com Signed-off-by: SeongJae Park sj@kernel.org Reviewed-by: SeongJae Park sj@kernel.org Cc: stable@vger.kernel.org [5.17.x] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

--- a/mm/damon/sysfs.c~damon-sysfs-fix-possible-memleak-on-damon_sysfs_add_target +++ a/mm/damon/sysfs.c @@ -2182,12 +2182,12 @@ static int damon_sysfs_add_target(struct

if (!t) return -ENOMEM; + damon_add_target(ctx, t); if (damon_target_has_pid(ctx)) { t->pid = find_get_pid(sys_target->pid); if (!t->pid) goto destroy_targets_out; } - damon_add_target(ctx, t); err = damon_sysfs_set_regions(t, sys_target->regions); if (err) goto destroy_targets_out; _

Patches currently in -mm which might be from ppbuk5246@gmail.com are

damon-sysfs-fix-possible-memleak-on-damon_sysfs_add_target.patch