http://bugs.dpdk.org/show_bug.cgi?id=1893
Bug ID: 1893
Summary: Possible memory leak in ipv4_frag_reassemble
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: critical
Priority: Normal
Component: other
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
In current ipv4_frag_reassemble version in case of invalid data memory leak is
possibble.
On every success packet search we remove mbuf from fp
https://github.com/DPDK/dpdk/blob/main/lib/ip_frag/rte_ipv4_reassembly.c#L48
and link it to result mbuf.
https://github.com/DPDK/dpdk/blob/main/lib/ip_frag/rte_ipv4_reassembly.c#L45
If for some reason on some fail iteration there will be invalid offset in some
packet
https://github.com/DPDK/dpdk/blob/main/lib/ip_frag/rte_ipv4_reassembly.c#L59
we will return NULL and all information chaned to m mbuf will be lost, as this
information was also deleted from fp.
So using fragmentation some client can create DDOS attack.
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