From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/core Bug 1820] pcapng: compile warning with gcc-16
Date: Tue, 04 Nov 2025 05:16:57 +0000 [thread overview]
Message-ID: <bug-1820-3@http.bugs.dpdk.org/> (raw)
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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