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| author | Wei Chen <harperchen1110@gmail.com> | 2023-03-14 16:54:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-30 12:51:42 +0200 |
| commit | cc3c3ee6d035d38f116a6dec88acf7f74598aebd (patch) | |
| tree | 6df1a113a18508e14d7a30ba73013f91a3a015fa /lib/net_utils.c | |
| parent | a963bf055a6480d2b7b5312628cf52279ecd80ad (diff) | |
i2c: xgene-slimpro: Fix out-of-bounds bug in xgene_slimpro_i2c_xfer()
commit 92fbb6d1296f81f41f65effd7f5f8c0f74943d15 upstream.
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@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/net_utils.c')
0 files changed, 0 insertions, 0 deletions