[DPDK/core Bug 1820] pcapng: compile warning with gcc-16

[DPDK/core Bug 1820] pcapng: compile warning with gcc-16

[bugzilla]

http://bugs.dpdk.org/show_bug.cgi?id=1820

            Bug ID: 1820
           Summary: pcapng: compile warning with gcc-16
           Product: DPDK
           Version: 25.07
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: core
          Assignee: dev@dpdk.org
          Reporter: stephen@networkplumber.org
  Target Milestone: ---

../lib/pcapng/rte_pcapng.c:133:17: warning: ‘memcpy’ forming offset [2048,
65551] is out of the bounds [0, 2048] of object ‘buf’ with type ‘uint32_t[512]’
{aka ‘unsigned int[512]’} [-Warray-bounds=]
  133 |                 memcpy(popt->data, data, len);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../lib/pcapng/rte_pcapng.c: In function ‘rte_pcapng_write_stats’:
../lib/pcapng/rte_pcapng.c:336:18: note: ‘buf’ declared here
  336 |         uint32_t buf[PCAPNG_BLKSIZ];
      |                  ^~~


Likely because comment could have a large size and overrun buffer?

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