tree: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git testing head: 283d2403beb406f0906cfbb2c9d7aa61cbcbbeed commit: 77ed24daa40b3ce41610268d8307a50d82b382ad [17/95] iio: light: as73211: New driver config: mips-randconfig-m031-20200831 (attached as .config) compiler: mips-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: drivers/iio/light/as73211.c:213 as73211_integration_time_calc_avail() error: buffer overflow 'data->int_time_avail' 30 <= 58 # https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git/commit/?id=... git remote add iio https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git git fetch --no-tags iio testing git checkout 77ed24daa40b3ce41610268d8307a50d82b382ad vim +213 drivers/iio/light/as73211.c 77ed24daa40b3c Christian Eggers 2020-08-05 206 static void as73211_integration_time_calc_avail(struct as73211_data *data) 77ed24daa40b3c Christian Eggers 2020-08-05 207 { 77ed24daa40b3c Christian Eggers 2020-08-05 208 int i; 77ed24daa40b3c Christian Eggers 2020-08-05 209 77ed24daa40b3c Christian Eggers 2020-08-05 210 for (i = 0; i < ARRAY_SIZE(data->int_time_avail); i++) { ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 77ed24daa40b3c Christian Eggers 2020-08-05 211 unsigned int time_us = as73211_integration_time_us(data, BIT(i)); 77ed24daa40b3c Christian Eggers 2020-08-05 212 77ed24daa40b3c Christian Eggers 2020-08-05 @213 data->int_time_avail[i * 2 + 0] = time_us / USEC_PER_SEC; ^^^^^^^^^ Buffer overflow 77ed24daa40b3c Christian Eggers 2020-08-05 214 data->int_time_avail[i * 2 + 1] = time_us % USEC_PER_SEC; ^^^^^^^^^^^^^^^^^^^^^^^^ 77ed24daa40b3c Christian Eggers 2020-08-05 215 } 77ed24daa40b3c Christian Eggers 2020-08-05 216 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org