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From: Anatoly Burakov <anatoly.burakov@intel.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, anatoly.burakov@intel.com
Subject: [dpdk-dev] [PATCH v2 04/10] mem: fix potential resource leak
Date: Wed, 18 Apr 2018 11:37:37 +0100	[thread overview]
Message-ID: <3119e07e2329b9078960ac26d5348df4552021a6.1524047073.git.anatoly.burakov@intel.com> (raw)
In-Reply-To: <cover.1524047073.git.anatoly.burakov@intel.com>
In-Reply-To: <cover.1524047073.git.anatoly.burakov@intel.com>

We close fd if we managed to find it in the list of allocated
segment lists (which should always be the case under normal
conditions), but if we didn't, the fd was leaking. Close it if
we couldn't find it in the segment list. This is not an issue
as if the segment is zero length, we're getting rid of it
anyway, so there's no harm in not storing the fd anywhere.

Coverity issue: 272568

Fixes: 2a04139f66b4 ("eal: add single file segments option")
Cc: anatoly.burakov@intel.com

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 lib/librte_eal/linuxapp/eal/eal_memalloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/librte_eal/linuxapp/eal/eal_memalloc.c b/lib/librte_eal/linuxapp/eal/eal_memalloc.c
index 9156f8b..fab5a98 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memalloc.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memalloc.c
@@ -569,6 +569,8 @@ free_seg(struct rte_memseg *ms, struct hugepage_info *hi,
 			if (te != NULL && te->fd >= 0) {
 				close(te->fd);
 				te->fd = -1;
+			} else {
+				close(fd);
 			}
 			unlink(path);
 		}
-- 
2.7.4

  parent reply	other threads:[~2018-04-18 10:37 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-17 15:50 [dpdk-dev] [PATCH 00/10] Coverity fixes for EAL memory Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 01/10] mem: use strlcpy instead of snprintf Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 02/10] mem: fix resource leak Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 03/10] mem: fix potential double close Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 04/10] mem: fix potential resource leak Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 05/10] " Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 06/10] mem: fix comparing pointer to value Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 07/10] mem: fix potential bad unmap Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 08/10] mem: fix statement having no effect Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 09/10] mem: fix negative return value Anatoly Burakov
2018-04-17 15:50 ` [dpdk-dev] [PATCH 10/10] mem: fix possible use-after-free Anatoly Burakov
2018-04-17 15:56 ` [dpdk-dev] [PATCH 00/10] Coverity fixes for EAL memory Thomas Monjalon
2018-04-17 16:09   ` Burakov, Anatoly
2018-04-17 18:59     ` Thomas Monjalon
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 " Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 01/10] mem: use strlcpy instead of snprintf Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 02/10] mem: fix resource leak Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 03/10] mem: fix potential double close Anatoly Burakov
2018-04-18 10:37 ` Anatoly Burakov [this message]
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 05/10] mem: fix potential resource leak Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 06/10] mem: fix comparing pointer to value Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 07/10] mem: fix potential bad unmap Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 08/10] mem: fix statement having no effect Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 09/10] mem: fix negative return value Anatoly Burakov
2018-04-18 10:37 ` [dpdk-dev] [PATCH v2 10/10] mem: fix possible use-after-free Anatoly Burakov
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 0/9] Coverity fixes for EAL memory Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 " Anatoly Burakov
2018-04-27 21:25     ` Thomas Monjalon
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 1/9] mem: use strlcpy instead of snprintf Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 2/9] mem: fix resource leak Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 3/9] mem: fix potential double close Anatoly Burakov
2018-04-30  9:00     ` Bruce Richardson
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 4/9] mem: fix potential resource leak Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 5/9] " Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 6/9] mem: fix comparing pointer to value Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 7/9] mem: fix potential bad unmap Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 8/9] mem: fix statement having no effect Anatoly Burakov
2018-04-27 17:07   ` [dpdk-dev] [PATCH v4 9/9] mem: fix possible use-after-free Anatoly Burakov
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 1/9] mem: use strlcpy instead of snprintf Anatoly Burakov
2018-04-27 15:08   ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 2/9] mem: fix resource leak Anatoly Burakov
2018-04-27 15:13   ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 3/9] mem: fix potential double close Anatoly Burakov
2018-04-27 15:15   ` Bruce Richardson
2018-04-27 16:56     ` Burakov, Anatoly
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 4/9] mem: fix potential resource leak Anatoly Burakov
2018-04-27 15:18   ` Bruce Richardson
2018-04-27 15:28     ` Burakov, Anatoly
2018-04-27 15:39     ` Burakov, Anatoly
2018-04-27 15:48       ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 5/9] " Anatoly Burakov
2018-04-27 15:21   ` Bruce Richardson
2018-04-27 15:49     ` Burakov, Anatoly
2018-04-27 15:52       ` Bruce Richardson
2018-04-27 15:55     ` Burakov, Anatoly
2018-04-27 16:27       ` Bruce Richardson
2018-04-27 16:42         ` Burakov, Anatoly
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 6/9] mem: fix comparing pointer to value Anatoly Burakov
2018-04-27 15:22   ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 7/9] mem: fix potential bad unmap Anatoly Burakov
2018-04-27 15:37   ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 8/9] mem: fix statement having no effect Anatoly Burakov
2018-04-27 15:39   ` Bruce Richardson
2018-04-25  9:56 ` [dpdk-dev] [PATCH v3 9/9] mem: fix possible use-after-free Anatoly Burakov
2018-04-27 15:45   ` Bruce Richardson

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