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author | Zichen Xie <zichenxie0106@gmail.com> | 2024-10-23 17:51:47 +0300 |
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committer | Stephen Boyd <sboyd@kernel.org> | 2024-10-29 02:47:22 +0300 |
commit | 00f8f70a0e8c6601861628be26270a0b6f4bbb34 (patch) | |
tree | 47baf214f140a2abc78179a4527d66d057c6d1a4 /tools/perf/scripts/python/task-analyzer.py | |
parent | b961b659add795bb3315ef3afda300beab555f3f (diff) | |
download | linux-00f8f70a0e8c6601861628be26270a0b6f4bbb34.tar.xz |
clk: sophgo: avoid integer overflow in sg2042_pll_recalc_rate()
This was found by a static analyzer.
There may be a potential integer overflow issue in
sg2042_pll_recalc_rate(). numerator is defined as u64 while
parent_rate is defined as unsigned long and ctrl_table.fbdiv
is defined as unsigned int. On 32-bit machine, the result of
the calculation will be limited to "u32" without correct casting.
Integer overflow may occur on high-performance systems.
Fixes: 48cf7e01386e ("clk: sophgo: Add SG2042 clock driver")
Signed-off-by: Zichen Xie <zichenxie0106@gmail.com>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Link: https://lore.kernel.org/r/20241023145146.13130-1-zichenxie0106@gmail.com
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions