CVE-2026-72479

Summary

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

iio: accel: mma8452: handle I2C read error(s) in mma8452_read()

Currently, If i2c_smbus_read_i2c_block_data() fails but mma8452_set_runtime_pm_state() succeeds, mma8452_read() returns 0.

As a result, the caller mma8452_read_raw() assumes the read was successful and proceeds to use a buffer containing uninitialized stack memory.

Add proper checking of the I2C read return value and propagate errors to the caller.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < b488055e81d9faaaf2f8aaff45f9944040ac4493affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < f9ec3f3e9cf27dd06cd3725eeaa44e3ce46be893affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < b4932fc325e84a3233413daf230b043818c8a824affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < eed69f8a10b82989ad732ace0fb43a9fb4e7fe35affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < f3d905ea1e4996d933074481e80d96ecd74a9904affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < 1cddef80a180af74c33d2f26c962ce92b60fded4affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < f3d413e701c5e54bef736b638967724dda880365affected
LinuxLinux96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 < 5bdff291d20c31b365d9ddfe9c426fbfb41da5bbaffected
LinuxLinux4.7affected
LinuxLinux0 < 4.7unaffected
LinuxLinux5.10.261 <= 5.10.*unaffected
LinuxLinux5.15.212 <= 5.15.*unaffected
LinuxLinux6.1.178 <= 6.1.*unaffected
LinuxLinux6.6.145 <= 6.6.*unaffected
LinuxLinux6.12.97 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References