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* [DPDK/other Bug 2105] pdcp: rte_pktmbuf_prepend() result not checked
@ 2026-11-12 17:31 bugzilla
  0 siblings, 0 replies; only message in thread
From: bugzilla @ 2026-11-12 17:31 UTC (permalink / raw)
  To: dev

https://bugs.dpdk.org/show_bug.cgi?id=2105

            Bug ID: 2105
           Summary: pdcp: rte_pktmbuf_prepend() result not checked
           Product: DPDK
           Version: 26.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: other
          Assignee: dev@dpdk.org
          Reporter: stephen@networkplumber.org
  Target Milestone: ---

Found by building with GCC 16 and -fanalyzer

lib/pdcp/pdcp_process.c:59, :146 and :167 call rte_pktmbuf_prepend(mb, 8) and
write through the result with rte_memcpy(). With less than 8 bytes of headroom
the result is NULL and the datapath crashes.

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2026-11-12 17:31 [DPDK/other Bug 2105] pdcp: rte_pktmbuf_prepend() result not checked bugzilla

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