From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [RFC v2 07/14] eal: avoid format overflow when handling addresses
Date: Thu, 4 Dec 2025 18:28:16 -0800 [thread overview]
Message-ID: <20251205022948.327743-8-stephen@networkplumber.org> (raw)
In-Reply-To: <20251205022948.327743-1-stephen@networkplumber.org>
The largest possible string in this code 0xFFFFFFFFFFFFFFFF
which will overflow with only 15 character buffer.
Increase to 20.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/eal/common/eal_common_memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/eal/common/eal_common_memory.c b/lib/eal/common/eal_common_memory.c
index c62edf5e55..2633857db5 100644
--- a/lib/eal/common/eal_common_memory.c
+++ b/lib/eal/common/eal_common_memory.c
@@ -1153,7 +1153,7 @@ rte_eal_memory_init(void)
#define EAL_MEMSEG_INFO_REQ "/eal/memseg_info"
#define EAL_ELEMENT_LIST_REQ "/eal/mem_element_list"
#define EAL_ELEMENT_INFO_REQ "/eal/mem_element_info"
-#define ADDR_STR 15
+#define ADDR_STR 20 /* 16 bytes 64 bit + 0x */
/* Telemetry callback handler to return heap stats for requested heap id. */
--
2.51.0
next prev parent reply other threads:[~2025-12-05 2:30 UTC|newest]
Thread overview: 29+ 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 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 ` Stephen Hemminger [this message]
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
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