diff options
| author | Josh Law <objecting@objecting.org> | 2026-03-21 10:54:24 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-03-27 20:48:37 -0700 |
| commit | 7fe000eb32904758a85e62f6ea9483f89d5dabfc (patch) | |
| tree | 539d9a89b49fdce04f6dda8bb80273d510e4e7f1 /fs/devfs/git@git.tavy.me:linux.git | |
| parent | 9e0d0ddfbc0e3491da7e2db73faa08d8d4f322b2 (diff) | |
mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
Patch series "mm/damon/sysfs: fix memory leak and NULL dereference
issues", v4.
DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer
dereference when a privileged user make wrong sequences of control. Fix
those.
This patch (of 3):
When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(),
param_ctx is leaked because the early return skips the cleanup at the out
label. Destroy param_ctx before returning.
Link: https://lkml.kernel.org/r/20260321175427.86000-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20260321175427.86000-2-sj@kernel.org
Fixes: f0c5118ebb0e ("mm/damon/sysfs: catch commit test ctx alloc failure")
Signed-off-by: Josh Law <objecting@objecting.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> [6.18+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/devfs/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions