From 5fc11a401a8dc491b326d2c916b07d22e7ac8833 Mon Sep 17 00:00:00 2001 From: Gavrilov Ilia Date: Thu, 8 Dec 2022 08:31:39 +0000 Subject: net: devlink: Add missing error check to devlink_resource_put() When the resource size changes, the return value of the 'nla_put_u64_64bit' function is not checked. That has been fixed to avoid rechecking at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE. Note that this is harmless, we'd error out at the next put(). Signed-off-by: Ilia.Gavrilov Link: https://lore.kernel.org/r/20221208082821.3927937-1-Ilia.Gavrilov@infotecs.ru Signed-off-by: Jakub Kicinski --- net/core/devlink.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'net/core/devlink.c') diff --git a/net/core/devlink.c b/net/core/devlink.c index ab40ebcb4aea..6004bd0ccee4 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4441,9 +4441,10 @@ static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, DEVLINK_ATTR_PAD)) goto nla_put_failure; - if (resource->size != resource->size_new) - nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, - resource->size_new, DEVLINK_ATTR_PAD); + if (resource->size != resource->size_new && + nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, + resource->size_new, DEVLINK_ATTR_PAD)) + goto nla_put_failure; if (devlink_resource_occ_put(resource, skb)) goto nla_put_failure; if (devlink_resource_size_params_put(resource, skb)) -- cgit