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From: okaya@kernel.org
To: dev@dpdk.org
Cc: Sinan Kaya <okaya@kernel.org>
Subject: [PATCH RESEND v2 07/11] malloc: check result of rte_fbarray_get
Date: Tue, 22 Nov 2022 10:30:49 -0500	[thread overview]
Message-ID: <20221122153053.1172434-8-okaya@kernel.org> (raw)
In-Reply-To: <20221122153053.1172434-1-okaya@kernel.org>

From: Sinan Kaya <okaya@kernel.org>

In eal_memalloc_is_contig result of call to rte_fbarray_get
is dereferenced here and may be null.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 lib/eal/common/eal_common_memalloc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/eal/common/eal_common_memalloc.c b/lib/eal/common/eal_common_memalloc.c
index ab04479c1c..24506f8447 100644
--- a/lib/eal/common/eal_common_memalloc.c
+++ b/lib/eal/common/eal_common_memalloc.c
@@ -126,6 +126,9 @@ eal_memalloc_is_contig(const struct rte_memseg_list *msl, void *start,
 
 		/* skip first iteration */
 		ms = rte_fbarray_get(&msl->memseg_arr, start_seg);
+		if (ms == NULL)
+			return false;
+
 		cur = ms->iova;
 		expected = cur + pgsz;
 
@@ -137,7 +140,7 @@ eal_memalloc_is_contig(const struct rte_memseg_list *msl, void *start,
 				cur_seg++, expected += pgsz) {
 			ms = rte_fbarray_get(&msl->memseg_arr, cur_seg);
 
-			if (ms->iova != expected)
+			if ((ms != NULL) && (ms->iova != expected))
 				return false;
 		}
 	}
-- 
2.25.1


  parent reply	other threads:[~2022-11-22 15:31 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-22 15:30 [PATCH RESEND v2 00/11] codeql fixes for various subsystems okaya
2022-11-22 15:30 ` [PATCH RESEND v2 01/11] ethdev: check return result of rte_eth_dev_info_get okaya
2023-01-18  8:42   ` Thomas Monjalon
2023-01-19  5:22     ` Sinan Kaya
2023-01-19 14:20   ` Ferruh Yigit
2022-11-22 15:30 ` [PATCH RESEND v2 02/11] net/tap: check if name is null okaya
2023-01-18 10:57   ` Ferruh Yigit
2023-01-19  5:21     ` Sinan Kaya
2022-11-22 15:30 ` [PATCH RESEND v2 03/11] memzone: check result of rte_fbarray_get okaya
2022-11-22 15:30 ` [PATCH RESEND v2 04/11] memzone: check result of malloc_elem_from_data okaya
2022-11-22 15:30 ` [PATCH RESEND v2 05/11] malloc: malloc_elem_join_adjacent_free can return null okaya
2022-11-22 15:30 ` [PATCH RESEND v2 06/11] malloc: check result of rte_mem_virt2memseg_list okaya
2022-11-22 15:30 ` okaya [this message]
2022-11-22 15:30 ` [PATCH RESEND v2 08/11] malloc: check result of rte_mem_virt2memseg okaya
2022-11-22 15:30 ` [PATCH RESEND v2 09/11] malloc: check result of malloc_elem_free okaya
2022-11-22 15:30 ` [PATCH RESEND v2 10/11] malloc: check result of elem_start_pt okaya
2022-11-22 15:30 ` [PATCH RESEND v2 11/11] bus/vdev: check result of rte_vdev_device_name okaya
2022-12-13 16:43 ` [PATCH RESEND v2 00/11] codeql fixes for various subsystems Sinan Kaya
2022-12-13 16:59   ` Dmitry Kozlyuk
2022-12-13 17:02     ` Sinan Kaya
2022-12-16 15:26       ` Sinan Kaya

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