From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Bruce Richardson <bruce.richardson@intel.com>,
Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Subject: [PATCH v3 02/16] lpm: restrict name size
Date: Fri, 5 Dec 2025 12:11:31 -0800 [thread overview]
Message-ID: <20251205201537.251131-3-stephen@networkplumber.org> (raw)
In-Reply-To: <20251205201537.251131-1-stephen@networkplumber.org>
Since LPM uses ring internally with a prefix, limit the
maximum allowed LPM name.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/lpm/rte_lpm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/lpm/rte_lpm.h b/lib/lpm/rte_lpm.h
index edfe77b458..21a93b7e44 100644
--- a/lib/lpm/rte_lpm.h
+++ b/lib/lpm/rte_lpm.h
@@ -26,7 +26,7 @@ extern "C" {
#endif
/** Max number of characters in LPM name. */
-#define RTE_LPM_NAMESIZE 32
+#define RTE_LPM_NAMESIZE (RTE_RING_NAMESIZE - sizeof("LPM_RCU_") + 1)
/** Maximum depth value possible for IPv4 LPM. */
#define RTE_LPM_MAX_DEPTH 32
--
2.51.0
next prev parent reply other threads:[~2025-12-05 20:15 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-02 17:24 [RFC 0/8] first steps in fixing buffer overflow Stephen Hemminger
2025-12-02 17:24 ` [RFC 1/8] eal: use C library to parse filesystem table Stephen Hemminger
2025-12-02 17:24 ` [RFC 2/8] hash: fix possible ring name overflow Stephen Hemminger
2025-12-02 17:24 ` [RFC 3/8] eal: warn if thread name is truncated Stephen Hemminger
2025-12-02 17:24 ` [RFC 4/8] eal: avoid format overflow when handling addresses Stephen Hemminger
2025-12-02 17:24 ` [RFC 5/8] ethdev: avoid possible overflow in xstat names Stephen Hemminger
2025-12-02 17:24 ` [RFC 6/8] efd: avoid overflowing ring name Stephen Hemminger
2025-12-02 17:24 ` [RFC 7/8] eal: add check for sysfs path overflow Stephen Hemminger
2025-12-02 17:24 ` [RFC 8/8] eal: limit maximum runtime directory and socket paths Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 00/14] lib: check for string overflow Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 01/14] eal: use C library to parse filesystem table Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 02/14] test: avoid long hash names Stephen Hemminger
2025-12-05 8:29 ` Bruce Richardson
2025-12-05 17:00 ` Stephen Hemminger
2025-12-05 18:19 ` Bruce Richardson
2025-12-05 2:28 ` [RFC v2 03/14] lpm: restrict name size Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 04/14] hash: avoid possible ring name overflow Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 05/14] graph: avoid overflowing comment buffer Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 06/14] eal: warn if thread name is truncated Stephen Hemminger
2025-12-05 8:32 ` Bruce Richardson
2025-12-05 2:28 ` [RFC v2 07/14] eal: avoid format overflow when handling addresses Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 08/14] ethdev: avoid possible overflow in xstat names Stephen Hemminger
2025-12-05 8:34 ` Bruce Richardson
2025-12-05 2:28 ` [RFC v2 09/14] vhost: check for overflow in xstat name Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 10/14] efd: avoid overflowing ring name Stephen Hemminger
2025-12-05 8:37 ` Bruce Richardson
2025-12-05 2:28 ` [RFC v2 11/14] eal: add check for sysfs path overflow Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 12/14] eal: limit maximum runtime directory and socket paths Stephen Hemminger
2025-12-05 8:46 ` Bruce Richardson
2025-12-05 2:28 ` [RFC v2 13/14] eal: check for hugefile path overflow Stephen Hemminger
2025-12-05 2:28 ` [RFC v2 14/14] lib: enable format overflow warnings Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 00/16] lib: find and fix possible string overflows Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 01/16] eal: use C library to parse filesystem table Stephen Hemminger
2025-12-05 20:11 ` Stephen Hemminger [this message]
2025-12-05 20:11 ` [PATCH v3 03/16] hash: add checks for hash name length Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 04/16] graph: avoid overflowing comment buffer Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 05/16] latencystats: add check for string overflow Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 06/16] efd: handle possible name truncation Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 07/16] eal: warn if thread name is truncated Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 08/16] eal: avoid format overflow when handling addresses Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 09/16] eal: add check for sysfs path overflow Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 10/16] eal: limit maximum runtime directory and socket paths Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 11/16] eal: check for hugefile path overflow Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 12/16] eal: check tailq length Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 13/16] eal: handle long shared library path Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 14/16] ethdev: avoid possible overflow in xstat names Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 15/16] vhost: check for overflow in xstat name Stephen Hemminger
2025-12-05 20:11 ` [PATCH v3 16/16] lib: enable format overflow warnings Stephen Hemminger
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