In the Linux kernel, the following vulnerability has been resolved:
net: mvpp2: limit XDP frame size to the RX buffer
mvpp2 has short and long BM pools, and short pool buffers can be smaller
than PAGE_SIZE. The XDP path nevertheless initializes every xdp_buff with
PAGE_SIZE as frame size.
XDP helpers use frame_sz to validate tail growth and to derive the hard
end of the data area. Advertising PAGE_SIZE for short buffers can let
bpf_xdp_adjust_tail() grow a packet past the real allocation, corrupting
memory or later tripping skb tailroom checks.
Initialize the XDP buffer with bm_pool->frag_size so XDP tailroom matches
the actual buffer backing the packet.
from 07dd0a7aae7f72af7cec18909581c2bb570edddc before a3ee9231ccec6ec3be2de89c56f897055fd9eab1; from 07dd0a7aae7f72af7cec18909581c2bb570edddc before ec8e1e5842bc0dbd4c272761f4db3651eecd0339; 07dd0a7aae7f72af7cec18909581c2bb570edddc builds before 3b8b0c3631b19faee53f0d15a49924129b063eec; from 07dd0a7aae7f72af7cec18909581c2bb570edddc before 994bd2b58d2bd08aa97ec0836cc813cfcb00d749; from 07dd0a7aae7f72af7cec18909581c2bb570edddc before 910617a4e67dbdd5fdb39d9dc6a51e491e1b2c3e; from 07dd0a7aae7f72af7cec18909581c2bb570edddc before 9545cc5ef18ca22d031f2f47c157192460652359; from 07dd0a7aae7f72af7cec18909581c2bb570edddc before f3c6aa078927e6fe8121c9c591ddee8716c5305a
from 5.9 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; and 5 more ranges
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.
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