[v2] Fix slab-out-of-bounds Write in dbgfs_rm_context_write

[PATCH v2 0/2] Fix slab-out-of-bounds Write in dbgfs_rm_context_write

SeongJae Park posted 2 patches 3 years, 5 months ago

Diff against v1
Download series mbox

mm/damon/dbgfs.c                              |  7 +++++++
tools/testing/selftests/damon/Makefile        |  1 +
.../damon/debugfs_rm_non_contexts.sh          | 19 +++++++++++++++++++
3 files changed, 27 insertions(+)
create mode 100755 tools/testing/selftests/damon/debugfs_rm_non_contexts.sh

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[PATCH v2 0/2] Fix slab-out-of-bounds Write in dbgfs_rm_context_write

Posted by SeongJae Park 3 years, 5 months ago

Changes from v1
(https://lore.kernel.org/damon/20221031182554.7882-1-sj@kernel.org/)
- Rebase on latest mm-unstable

---

This patchset is for fixing (patch 1) the syzbot-reported
slab-out-of-bounds write in dbgfs_rm_context_write[1], and adding a
selftest for the bug (patch 2).

[1] https://lore.kernel.org/damon/000000000000ede3ac05ec4abf8e@google.com/

SeongJae Park (2):
  mm/damon/dbgfs: check if rm_contexts input is for a real context
  selftests/damon: test non-context inputs to rm_contexts file

 mm/damon/dbgfs.c                              |  7 +++++++
 tools/testing/selftests/damon/Makefile        |  1 +
 .../damon/debugfs_rm_non_contexts.sh          | 19 +++++++++++++++++++
 3 files changed, 27 insertions(+)
 create mode 100755 tools/testing/selftests/damon/debugfs_rm_non_contexts.sh

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2.25.1