From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: stable@dpdk.org
Subject: [PATCH 06/10] cmdline: fix highest bit port list parsing
Date: Thu, 19 Jun 2025 09:10:32 +0200 [thread overview]
Message-ID: <20250619071037.37325-7-david.marchand@redhat.com> (raw)
In-Reply-To: <20250619071037.37325-1-david.marchand@redhat.com>
pl->map is a uint32_t.
Caught by UBSan:
../lib/cmdline/cmdline_parse_portlist.c:27:17: runtime error:
left shift of 1 by 31 places cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
../lib/cmdline/cmdline_parse_portlist.c:27:17 in
Fixes: af75078fece3 ("first public release")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
---
lib/cmdline/cmdline_parse_portlist.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/cmdline/cmdline_parse_portlist.c b/lib/cmdline/cmdline_parse_portlist.c
index 0c07cc02b5..3ef427d32a 100644
--- a/lib/cmdline/cmdline_parse_portlist.c
+++ b/lib/cmdline/cmdline_parse_portlist.c
@@ -11,7 +11,9 @@
#include <errno.h>
#include <eal_export.h>
+#include <rte_bitops.h>
#include <rte_string_fns.h>
+
#include "cmdline_parse.h"
#include "cmdline_parse_portlist.h"
@@ -27,7 +29,7 @@ static void
parse_set_list(cmdline_portlist_t *pl, size_t low, size_t high)
{
do {
- pl->map |= (1 << low++);
+ pl->map |= RTE_BIT32(low++);
} while (low <= high);
}
--
2.49.0
next prev parent reply other threads:[~2025-06-19 7:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 7:10 [PATCH 00/10] Run with UBSan in GHA David Marchand
2025-06-19 7:10 ` [PATCH 01/10] ci: save ccache on failure David Marchand
2025-06-19 7:10 ` [PATCH 02/10] test/telemetry: fix test calling all commands David Marchand
2025-06-19 7:10 ` [PATCH 03/10] test/mempool: fix test without stack driver David Marchand
2025-06-19 7:10 ` [PATCH 04/10] eal: fix plugin dir walk David Marchand
2025-06-19 7:10 ` [PATCH 05/10] cmdline: fix port list parsing David Marchand
2025-06-19 7:10 ` David Marchand [this message]
2025-06-19 7:10 ` [PATCH 07/10] tailq: fix cast macro for null pointer David Marchand
2025-06-19 7:10 ` [PATCH 08/10] hash: fix unaligned access in predictable RSS David Marchand
2025-06-19 7:10 ` [PATCH 09/10] stack: fix unaligned accesses on 128-bit David Marchand
2025-06-19 7:10 ` [PATCH 10/10] build: support Undefined Behavior Sanitizer David Marchand
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