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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Javed Hasan <jhasan@marvell.com>,
	Girish Basrur <gbasrur@marvell.com>,
	Santosh Vernekar <svernekar@marvell.com>,
	Saurav Kashyap <skashyap@marvell.com>,
	Shyam Sundar <ssundar@marvell.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.4 21/22] scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
Date: Fri, 21 Aug 2020 12:20:13 -0400	[thread overview]
Message-ID: <20200821162014.349506-21-sashal@kernel.org> (raw)
In-Reply-To: <20200821162014.349506-1-sashal@kernel.org>

From: Javed Hasan <jhasan@marvell.com>

[ Upstream commit e95b4789ff4380733006836d28e554dc296b2298 ]

In fcoe_sysfs_fcf_del(), we first deleted the fcf from the list and then
freed it if ctlr_dev was not NULL. This was causing a memory leak.

Free the fcf even if ctlr_dev is NULL.

Link: https://lore.kernel.org/r/20200729081824.30996-3-jhasan@marvell.com
Reviewed-by: Girish Basrur <gbasrur@marvell.com>
Reviewed-by: Santosh Vernekar <svernekar@marvell.com>
Reviewed-by: Saurav Kashyap <skashyap@marvell.com>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/fcoe/fcoe_ctlr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 3bc610d160f57..53afdbe17d71d 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -264,9 +264,9 @@ static void fcoe_sysfs_fcf_del(struct fcoe_fcf *new)
 		WARN_ON(!fcf_dev);
 		new->fcf_dev = NULL;
 		fcoe_fcf_device_delete(fcf_dev);
-		kfree(new);
 		mutex_unlock(&cdev->lock);
 	}
+	kfree(new);
 }
 
 /**
-- 
2.25.1


  parent reply	other threads:[~2020-08-21 16:25 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-21 16:19 [PATCH AUTOSEL 4.4 01/22] ALSA: pci: delete repeated words in comments Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 02/22] ASoC: tegra: Fix reference count leaks Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 03/22] media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq() Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 04/22] scsi: target: tcmu: Fix crash on ARM during cmd completion Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 05/22] drm/amdkfd: Fix reference count leaks Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 06/22] drm/radeon: fix multiple reference count leak Sasha Levin
2020-08-21 16:19 ` [PATCH AUTOSEL 4.4 07/22] drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 08/22] drm/amd/display: fix ref count leak in amdgpu_drm_ioctl Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 09/22] drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 10/22] drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 11/22] scsi: lpfc: Fix shost refcount mismatch when deleting vport Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 12/22] selftests/powerpc: Purge extra count_pmc() calls of ebb selftests Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 13/22] PCI: Fix pci_create_slot() reference count leak Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 14/22] rtlwifi: rtl8192cu: Prevent leaking urb Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 15/22] mips/vdso: Fix resource leaks in genvdso.c Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 16/22] drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 17/22] drm/nouveau: Fix reference count leak in nouveau_connector_detect Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 18/22] locking/lockdep: Fix overflow in presentation of average lock-time Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 19/22] scsi: iscsi: Do not put host in iscsi_set_flashnode_param() Sasha Levin
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 20/22] ceph: fix potential mdsc use-after-free crash Sasha Levin
2020-08-21 16:20 ` Sasha Levin [this message]
2020-08-21 16:20 ` [PATCH AUTOSEL 4.4 22/22] EDAC/ie31200: Fallback if host bridge device is already initialized Sasha Levin

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