diff options
| author | Eric Dumazet <edumazet@google.com> | 2024-05-02 16:17:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:02:22 +0200 |
| commit | ee9e39a6cb3ca2a3d35b4ae25547ee3526a44d00 (patch) | |
| tree | 664f2f2405071123c2dc8ecd774abe7da1b0121a /net/phonet | |
| parent | d4c6b1807ce625df7d9c30861e3f9ef1277c92a2 (diff) | |
phonet: fix rtm_phonet_notify() skb allocation
[ Upstream commit d8cac8568618dcb8a51af3db1103e8d4cc4aeea7 ]
fill_route() stores three components in the skb:
- struct rtmsg
- RTA_DST (u8)
- RTA_OIF (u32)
Therefore, rtm_phonet_notify() should use
NLMSG_ALIGN(sizeof(struct rtmsg)) +
nla_total_size(1) +
nla_total_size(4)
Fixes: f062f41d0657 ("Phonet: routing table Netlink interface")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Rémi Denis-Courmont <courmisch@gmail.com>
Link: https://lore.kernel.org/r/20240502161700.1804476-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/phonet')
| -rw-r--r-- | net/phonet/pn_netlink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c index 59aebe296890..dd4c7e9a634f 100644 --- a/net/phonet/pn_netlink.c +++ b/net/phonet/pn_netlink.c @@ -193,7 +193,7 @@ void rtm_phonet_notify(int event, struct net_device *dev, u8 dst) struct sk_buff *skb; int err = -ENOBUFS; - skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct ifaddrmsg)) + + skb = nlmsg_new(NLMSG_ALIGN(sizeof(struct rtmsg)) + nla_total_size(1) + nla_total_size(4), GFP_KERNEL); if (skb == NULL) goto errout; |