diff options
author | Oleksandr Mazur <oleksandr.mazur@plvision.eu> | 2021-01-19 10:53:33 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-27 11:55:26 +0100 |
commit | 22c3cb558a4bbda0234186c8847d2243098cdbdc (patch) | |
tree | 59fe38f5fcbfeb5961bb8680ee8ae25d46043ebf /net/core | |
parent | 6a791693a0134f197784368965bc3ccbb32192c1 (diff) |
net: core: devlink: use right genl user_ptr when handling port param get/set
commit 7e238de8283acd32c26c2bc2a50672d0ea862ff7 upstream.
Fix incorrect user_ptr dereferencing when handling port param get/set:
idx [0] stores the 'struct devlink' pointer;
idx [1] stores the 'struct devlink_port' pointer;
Fixes: 637989b5d77e ("devlink: Always use user_ptr[0] for devlink and simplify post_doit")
CC: Parav Pandit <parav@mellanox.com>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
Link: https://lore.kernel.org/r/20210119085333.16833-1-vadym.kochan@plvision.eu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
-rw-r--r-- | net/core/devlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index 8c5ddffd707d..5d397838bceb 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4134,7 +4134,7 @@ out: static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, struct genl_info *info) { - struct devlink_port *devlink_port = info->user_ptr[0]; + struct devlink_port *devlink_port = info->user_ptr[1]; struct devlink_param_item *param_item; struct sk_buff *msg; int err; @@ -4163,7 +4163,7 @@ static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, struct genl_info *info) { - struct devlink_port *devlink_port = info->user_ptr[0]; + struct devlink_port *devlink_port = info->user_ptr[1]; return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, devlink_port->index, |