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| author | Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> | 2023-03-06 11:18:24 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-05 11:23:46 +0200 |
| commit | ac63f78d9aca3cd10802b2d9e6c12a3f03b262c7 (patch) | |
| tree | ff8871417b6c3cb9b3c7d0a31bd4ad440c891eb7 | |
| parent | 8b1269b709c9d3314cb2c6283474c4e5340621b7 (diff) | |
| download | linux-ac63f78d9aca3cd10802b2d9e6c12a3f03b262c7.tar.gz linux-ac63f78d9aca3cd10802b2d9e6c12a3f03b262c7.tar.bz2 linux-ac63f78d9aca3cd10802b2d9e6c12a3f03b262c7.zip | |
ca8210: Fix unsigned mac_len comparison with zero in ca8210_skb_tx()
[ Upstream commit 748b2f5e82d17480404b3e2895388fc2925f7caf ]
mac_len is of type unsigned, which can never be less than zero.
mac_len = ieee802154_hdr_peek_addrs(skb, &header);
if (mac_len < 0)
return mac_len;
Change this to type int as ieee802154_hdr_peek_addrs() can return negative
integers, this is found by static analysis with smatch.
Fixes: 6c993779ea1d ("ca8210: fix mac_len negative array access")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230306191824.4115839-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ieee802154/ca8210.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index 5beb447529f9..1c5d70c60354 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -1945,10 +1945,9 @@ static int ca8210_skb_tx( struct ca8210_priv *priv ) { - int status; struct ieee802154_hdr header = { }; struct secspec secspec; - unsigned int mac_len; + int mac_len, status; dev_dbg(&priv->spi->dev, "%s called\n", __func__); |