iio: light: veml6075: add bounds check to veml6075_it_ms index

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veml6075_it_ms has 5 elements but VEML6075_CONF_IT can yield values 0-7.
If it returns a value >= 5, this causes an out-of-bounds array access.
Add a bounds check and return -EINVAL if the index is out of range.

The problem values are reserved so should never be read from the
register. Hence this is hardening against fault device, missprogramming
or bus corruption.

Assisted-by: gkh_clanker_2000
Cc: stable <stable@kernel.org>
Signed-off-by: Sam Daly <sam@samdaly.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

...

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Sam Daly 2026-05-14 18:23:21 +02:00 • committed by Jonathan Cameron

parent a5b7991d5a

commit 307dc4240b

1 changed files with 6 additions and 2 deletions

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drivers/iio/light/veml6075.c

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