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authorKees Cook <[email protected]>2025-05-21 20:46:16 +0000
committerPaolo Abeni <[email protected]>2025-05-27 06:25:43 +0000
commitae9fcd5a0f8ab7e12619e1c66312a03b842935c3 (patch)
tree1b125a39db68d7241d227de66db8b3bef305fc35 /net/core/dev_api.c
parentrtnetlink: do_setlink: Use struct sockaddr_storage (diff)
downloadkernel-ae9fcd5a0f8ab7e12619e1c66312a03b842935c3.tar.gz
kernel-ae9fcd5a0f8ab7e12619e1c66312a03b842935c3.zip
net: core: Convert dev_set_mac_address_user() to use struct sockaddr_storage
Convert callers of dev_set_mac_address_user() to use struct sockaddr_storage. Add sanity checks on dev->addr_len usage. Signed-off-by: Kees Cook <[email protected]> Acked-by: Gustavo A. R. Silva <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'net/core/dev_api.c')
-rw-r--r--net/core/dev_api.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/core/dev_api.c b/net/core/dev_api.c
index 6011a5ef649d..1bf0153195f2 100644
--- a/net/core/dev_api.c
+++ b/net/core/dev_api.c
@@ -84,14 +84,15 @@ void dev_set_group(struct net_device *dev, int new_group)
netdev_unlock_ops(dev);
}
-int dev_set_mac_address_user(struct net_device *dev, struct sockaddr *sa,
+int dev_set_mac_address_user(struct net_device *dev,
+ struct sockaddr_storage *ss,
struct netlink_ext_ack *extack)
{
int ret;
down_write(&dev_addr_sem);
netdev_lock_ops(dev);
- ret = netif_set_mac_address(dev, (struct sockaddr_storage *)sa, extack);
+ ret = netif_set_mac_address(dev, ss, extack);
netdev_unlock_ops(dev);
up_write(&dev_addr_sem);