In the Linux kernel, the following vulnerability has been resolved:

iio: gyro: bmg160: bail out when bandwidth/filter is not in table

bmg160_get_filter() walks bmg160_samp_freq_table[] looking for the entry
matching the bw_bits value read from the chip:

	for (i = 0; i < ARRAY_SIZE(bmg160_samp_freq_table); ++i) {
		if (bmg160_samp_freq_table[i].bw_bits == bw_bits)
			break;
	}
	*val = bmg160_samp_freq_table[i].filter;

If no entry matches, i ends up equal to the array size and the next line
reads one slot past the end. bmg160_set_filter() has the same shape, driven
by 'val' instead of bw_bits.

smatch flags both:

  drivers/iio/gyro/bmg160_core.c:204 bmg160_get_filter() error:
  buffer overflow 'bmg160_samp_freq_table' 7 <= 7
  drivers/iio/gyro/bmg160_core.c:222 bmg160_set_filter() error:
  buffer overflow 'bmg160_samp_freq_table' 7 <= 7

Return -EINVAL when no entry matches.

The set_filter() path is reachable from userspace via the sysfs
in_anglvel_filter_low_pass_3db_frequency interface, so userspace can
trivially trigger the out-of-bounds read with a value that is not in
bmg160_samp_freq_table[].filter.

https://git.kernel.org/stable/c/029481cddb98697716f4bf3021d035eaf2ca0e1f

https://git.kernel.org/stable/c/1dc3a833be11e5d503038e3c701745fd0e03903c

https://git.kernel.org/stable/c/6c8675468862161d1c59130266852b66867d3861

https://git.kernel.org/stable/c/77e56ebb1786f4296afd5fa46975a989b285ae65

https://git.kernel.org/stable/c/7bbf02b63961fc1768c9c654392c11f2077d4c59

https://git.kernel.org/stable/c/8320c77e67382d5d55d77043a5f60a867d408a2b

https://git.kernel.org/stable/c/8d202515baea4e2e3be448d1590099af28f2346d

https://git.kernel.org/stable/c/d85ee50f58dd83fe74f6d0bf8bd345c657b216e8

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