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| author | Colin Ian King <colin.king@canonical.com> | 2020-01-14 14:54:48 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:21:35 +0100 |
| commit | c91e8519c67d0e20894751abdb11f8e4dc77ec21 (patch) | |
| tree | 99a29f0b38e237871ec14d1de3a3329943c5e10a | |
| parent | 6dc2025f3cd9fd65986e0cdf9705a653e05ad486 (diff) | |
| download | linux-stable-c91e8519c67d0e20894751abdb11f8e4dc77ec21.tar.gz linux-stable-c91e8519c67d0e20894751abdb11f8e4dc77ec21.tar.bz2 linux-stable-c91e8519c67d0e20894751abdb11f8e4dc77ec21.zip | |
net/wan/fsl_ucc_hdlc: fix out of bounds write on array utdm_info
[ Upstream commit ddf420390526ede3b9ff559ac89f58cb59d9db2f ]
Array utdm_info is declared as an array of MAX_HDLC_NUM (4) elements
however up to UCC_MAX_NUM (8) elements are potentially being written
to it. Currently we have an array out-of-bounds write error on the
last 4 elements. Fix this by making utdm_info UCC_MAX_NUM elements in
size.
Addresses-Coverity: ("Out-of-bounds write")
Fixes: c19b6d246a35 ("drivers/net: support hdlc function for QE-UCC")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wan/fsl_ucc_hdlc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index 0212f576a838..daeab33f623e 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -76,7 +76,7 @@ static struct ucc_tdm_info utdm_primary_info = { }, }; -static struct ucc_tdm_info utdm_info[MAX_HDLC_NUM]; +static struct ucc_tdm_info utdm_info[UCC_MAX_NUM]; static int uhdlc_init(struct ucc_hdlc_private *priv) { |