mirror of https://gitee.com/openkylin/linux.git
8033120f36
The code looks in imx_enum_frame_size() looks like this:
2066 int index = fse->index;
2067 struct imx_device *dev = to_imx_sensor(sd);
2068
2069 mutex_lock(&dev->input_lock);
2070 if (index >= dev->entries_curr_table) {
2071 mutex_unlock(&dev->input_lock);
2072 return -EINVAL;
2073 }
2074
2075 fse->min_width = dev->curr_res_table[index].width;
"fse->index" is a u32 that comes from the user. We want negative values
of "index" to be -EINVAL so we don't read before the start of the
dev->curr_res_table[] array. I've made "entries_curr_table" unsigned
long to fix this. I thought about making it unsigned int, but because
of struct alignment, it doesn't use more memory either way.
Fixes:
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|---|---|---|
| .. | ||
| atomisp | ||
| bcm2048 | ||
| cxd2099 | ||
| davinci_vpfe | ||
| imx | ||
| lirc | ||
| omap4iss | ||
| Kconfig | ||
| Makefile | ||