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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, David Rientjes <rientjes@google.com>,
	"Huang, Ying" <ying.huang@intel.com>,
	"Darrick J. Wong" <darrick.wong@oracle.com>,
	Hugh Dickins <hughd@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH 4.12 12/22] mm/swapfile.c: fix swapon frontswap_map memory leak on error
Date: Tue, 12 Sep 2017 09:59:47 -0700	[thread overview]
Message-ID: <20170912165302.492677941@linuxfoundation.org> (raw)
In-Reply-To: <20170912165301.886822511@linuxfoundation.org>

4.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Rientjes <rientjes@google.com>

commit b6b1fd2a6bedd533aeed83924d7be0e944fded9f upstream.

Free frontswap_map if an error is encountered before enable_swap_info().

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/swapfile.c |    1 +
 1 file changed, 1 insertion(+)

--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2904,6 +2904,7 @@ bad_swap:
 	spin_unlock(&swap_lock);
 	vfree(swap_map);
 	kvfree(cluster_info);
+	kvfree(frontswap_map);
 	if (swap_file) {
 		if (inode && S_ISREG(inode->i_mode)) {
 			inode_unlock(inode);

  parent reply	other threads:[~2017-09-12 17:00 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-12 16:59 [PATCH 4.12 00/22] 4.12.13-stable review Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 02/22] mtd: nand: hynix: add support for 20nm NAND chips Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 03/22] mtd: nand: mxc: Fix mxc_v1 ooblayout Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 04/22] mtd: nand: qcom: fix read failure without complete bootchain Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 05/22] mtd: nand: qcom: fix config error for BCH Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 06/22] nvme-fabrics: generate spec-compliant UUID NQNs Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 07/22] btrfs: resume qgroup rescan on rw remount Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 08/22] rtlwifi: btcoexist: Fix breakage of ant_sel for rtl8723be Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 09/22] radix-tree: must check __radix_tree_preload() return value Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 10/22] selftests/x86/fsgsbase: Test selectors 1, 2, and 3 Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 11/22] mm: kvfree the swap cluster info if the swap file is unsatisfactory Greg Kroah-Hartman
2017-09-12 16:59 ` Greg Kroah-Hartman [this message]
2017-09-12 16:59 ` [PATCH 4.12 13/22] mm/memory.c: fix mem_cgroup_oom_disable() call missing Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 14/22] ALSA: msnd: Optimize / harden DSP and MIDI loops Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 16/22] rt2800: fix TX_PIN_CFG setting for non MT7620 chips Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 17/22] Bluetooth: Properly check L2CAP config option output buffer length Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 18/22] ARM64: dts: marvell: armada-37xx: Fix GIC maintenance interrupt Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 19/22] ARM: 8692/1: mm: abort uaccess retries upon fatal signal Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 20/22] NFS: Fix 2 use after free issues in the I/O code Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 21/22] NFS: Sync the correct byte range during synchronous writes Greg Kroah-Hartman
2017-09-12 16:59 ` [PATCH 4.12 22/22] NFSv4: Fix up mirror allocation Greg Kroah-Hartman
2017-09-13  0:12 ` [PATCH 4.12 00/22] 4.12.13-stable review Shuah Khan
2017-09-13 14:34 ` Guenter Roeck

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