Re: [PATCH v4] i2c: xgene-slimpro: Fix out-of-bounds bug in xgene_slimpro_i2c_xfer()

[Wolfram Sang]

On Tue, Mar 14, 2023 at 04:54:21PM +0000, Wei Chen wrote:
> The data->block[0] variable comes from user and is a number between
> 0-255. Without proper check, the variable may be very large to cause
> an out-of-bounds when performing memcpy in slimpro_i2c_blkwr.
> 
> Fix this bug by checking the value of writelen.
> 
> Fixes: f6505fbabc42 ("i2c: add SLIMpro I2C device driver on APM X-Gene platform")
> Signed-off-by: Wei Chen <harperchen1110@xxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

Applied to for-current, thanks!

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