In the Linux kernel, the following vulnerability has been resolved:
phonet: fix rtm_phonet_notify() skb allocation
fill_route() stores three components in the skb:
Therefore, rtm_phonet_notify() should use
NLMSG_ALIGN(sizeof(struct rtmsg)) + nla_total_size(1) + nla_total_size(4)
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:NI:NA:H5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H