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| author | Kees Cook <kees@kernel.org> | 2026-10-05 08:57:01 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-10-11 21:57:30 -0700 |
| commit | 9ac219976ecfd0ad9c54050ed14f1da5d197cb69 (patch) | |
| tree | 422eb294eceb252fd23293439d3ffdfbab4ad11f /tools/perf/scripts/python/stackcollapse.py | |
| parent | 63ae65caa98a20191c182b5c9c5d8505c9800584 (diff) | |
| download | linux-next-9ac219976ecfd0ad9c54050ed14f1da5d197cb69.tar.gz linux-next-9ac219976ecfd0ad9c54050ed14f1da5d197cb69.zip | |
nvdimm: ndtest: Return the string length from flags_show()
flags_show() build their output with a seq_buf and return seq_buf_used(),
which may include the trailing NUL byte when the seq_buf has
overflowed. Use seq_buf_strlen() instead.
The flag names are far shorter than the PAGE_SIZE buffer sysfs
provides, so this cannot overflow today.
Build tested ARCH=x86_64 with GCC 16.2.0, built out of tree with
make M=tools/testing/nvdimm:
tools/testing/nvdimm/test/ndtest.o
Assisted-by: LLM
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20261005155708.1471260-11-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions