iio: accel: mma8452: handle I2C read error(s) in mma8452_read()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1cddef80a180af74c33d2f26c962ce92b60fded4https://git.kernel.org/stable/c/5bdff291d20c31b365d9ddfe9c426fbfb41da5bbhttps://git.kernel.org/stable/c/b488055e81d9faaaf2f8aaff45f9944040ac4493https://git.kernel.org/stable/c/b4932fc325e84a3233413daf230b043818c8a824https://git.kernel.org/stable/c/eed69f8a10b82989ad732ace0fb43a9fb4e7fe35https://git.kernel.org/stable/c/f3d413e701c5e54bef736b638967724dda880365https://git.kernel.org/stable/c/f3d905ea1e4996d933074481e80d96ecd74a9904https://git.kernel.org/stable/c/f9ec3f3e9cf27dd06cd3725eeaa44e3ce46be893