CVE-2026-64495 is a vulnerability in Linux Kernel
Published on July 25, 2026
iio: gyro: bmg160: bail out when bandwidth/filter is not in table
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.
Products Associated with CVE-2026-64495
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Affected Versions
Linux:- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 1dc3a833be11e5d503038e3c701745fd0e03903c is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 77e56ebb1786f4296afd5fa46975a989b285ae65 is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 029481cddb98697716f4bf3021d035eaf2ca0e1f is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 8d202515baea4e2e3be448d1590099af28f2346d is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below d85ee50f58dd83fe74f6d0bf8bd345c657b216e8 is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 7bbf02b63961fc1768c9c654392c11f2077d4c59 is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 6c8675468862161d1c59130266852b66867d3861 is affected.
- Version 22b46c45fb9be8ec1fcb4d9b74810e6a20ff67cc and below 8320c77e67382d5d55d77043a5f60a867d408a2b is affected.
- Version 3.18 is affected.
- Before 3.18 is unaffected.
- Version 5.10.261, <= 5.10.* is unaffected.
- Version 5.15.212, <= 5.15.* is unaffected.
- Version 6.1.178, <= 6.1.* is unaffected.
- Version 6.6.145, <= 6.6.* is unaffected.
- Version 6.12.96, <= 6.12.* is unaffected.
- Version 6.18.39, <= 6.18.* is unaffected.
- Version 7.1.4, <= 7.1.* is unaffected.
- Version 7.2-rc1, <= * is unaffected.