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| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2024-03-27 19:52:49 +0300 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2024-03-27 17:05:07 -0500 |
| commit | a1aa5390cc912934fee76ce80af5f940452fa987 (patch) | |
| tree | 6b7c0b89a30267467d890822958087927706b989 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | b5237d0bdb3cb164b7792cc4f1ff2ecafbfac661 (diff) | |
of: module: prevent NULL pointer dereference in vsnprintf()
In of_modalias(), we can get passed the str and len parameters which would
cause a kernel oops in vsnprintf() since it only allows passing a NULL ptr
when the length is also 0. Also, we need to filter out the negative values
of the len parameter as these will result in a really huge buffer since
snprintf() takes size_t parameter while ours is ssize_t...
Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1d211023-3923-685b-20f0-f3f90ea56e1f@omp.ru
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions