From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Anand Jain <anand.jain@oracle.com>,
Johannes Thumshirn <jthumshirn@suse.de>, Qu Wenruo <wqu@suse.com>,
David Sterba <dsterba@suse.com>
Subject: [PATCH 4.4 35/41] btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
Date: Sun, 27 Oct 2019 22:01:13 +0100 [thread overview]
Message-ID: <20191027203129.173850606@linuxfoundation.org> (raw)
In-Reply-To: <20191027203056.220821342@linuxfoundation.org>
From: Qu Wenruo <wqu@suse.com>
commit 4b654acdae850f48b8250b9a578a4eaa518c7a6f upstream.
In btrfs_read_block_groups(), if we have an invalid block group which
has mixed type (DATA|METADATA) while the fs doesn't have MIXED_GROUPS
feature, we error out without freeing the block group cache.
This patch will add the missing btrfs_put_block_group() to prevent
memory leak.
Note for stable backports: the file to patch in versions <= 5.3 is
fs/btrfs/extent-tree.c
Fixes: 49303381f19a ("Btrfs: bail out if block group has different mixed flag")
CC: stable@vger.kernel.org # 4.9+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/btrfs/extent-tree.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9905,6 +9905,7 @@ int btrfs_read_block_groups(struct btrfs
btrfs_err(info,
"bg %llu is a mixed block group but filesystem hasn't enabled mixed block groups",
cache->key.objectid);
+ btrfs_put_block_group(cache);
ret = -EINVAL;
goto error;
}
next prev parent reply other threads:[~2019-10-27 21:37 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 21:00 [PATCH 4.4 00/41] 4.4.198-stable review Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 01/41] scsi: ufs: skip shutdown if hba is not powered Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 02/41] scsi: megaraid: disable device when probe failed after enabled device Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 03/41] scsi: qla2xxx: Fix unbound sleep in fcport delete path Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 04/41] ARM: OMAP2+: Fix missing reset done flag for am3 and am43 Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 05/41] ARM: dts: am4372: Set memory bandwidth limit for DISPC Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 06/41] nl80211: fix null pointer dereference Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 07/41] mips: Loongson: Fix the link time qualifier of serial_exit() Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 08/41] net: hisilicon: Fix usage of uninitialized variable in function mdio_sc_cfg_reg_write() Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 09/41] namespace: fix namespace.pl script to support relative paths Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 10/41] MIPS: Treat Loongson Extensions as ASEs Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 11/41] MIPS: elf_hwcap: Export userspace ASEs Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 12/41] loop: Add LOOP_SET_DIRECT_IO to compat ioctl Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 13/41] net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3 Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 14/41] net: bcmgenet: Set phydev->dev_flags only for internal PHYs Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 15/41] sctp: change sctp_prot .no_autobind with true Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 16/41] net: avoid potential infinite loop in tc_ctl_action() Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 17/41] ipv4: Return -ENETUNREACH if we cant create route but saddr is valid Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 18/41] memfd: Fix locking when tagging pins Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 19/41] USB: legousbtower: fix memleak on disconnect Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 20/41] usb: udc: lpc32xx: fix bad bit shift operation Greg Kroah-Hartman
2019-10-27 21:00 ` [PATCH 4.4 21/41] USB: serial: ti_usb_3410_5052: fix port-close races Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 22/41] USB: ldusb: fix memleak on disconnect Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 23/41] USB: usblp: fix use-after-free " Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 24/41] USB: ldusb: fix read info leaks Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 25/41] scsi: core: try to get module before removing device Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 26/41] ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 27/41] cfg80211: wext: avoid copying malformed SSIDs Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 28/41] mac80211: Reject malformed SSID elements Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 29/41] drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50 Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 30/41] scsi: zfcp: fix reaction on bit error threshold notification Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 31/41] mm/slub: fix a deadlock in show_slab_objects() Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 32/41] xtensa: drop EXPORT_SYMBOL for outs*/ins* Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 33/41] parisc: Fix vmap memory leak in ioremap()/iounmap() Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 34/41] CIFS: avoid using MID 0xFFFF Greg Kroah-Hartman
2019-10-27 21:01 ` Greg Kroah-Hartman [this message]
2019-10-27 21:01 ` [PATCH 4.4 36/41] memstick: jmb38x_ms: Fix an error handling path in jmb38x_ms_probe() Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 37/41] cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 38/41] xen/netback: fix error path of xenvif_connect_data() Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 39/41] PCI: PM: Fix pci_power_up() Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 40/41] net: sched: Fix memory exposure from short TCA_U32_SEL Greg Kroah-Hartman
2019-10-27 21:01 ` [PATCH 4.4 41/41] RDMA/cxgb4: Do not dma memory off of the stack Greg Kroah-Hartman
2019-10-28 3:55 ` [PATCH 4.4 00/41] 4.4.198-stable review kernelci.org bot
2019-10-28 9:07 ` Didik Setiawan
2019-10-28 13:32 ` Guenter Roeck
2019-10-28 13:49 ` Greg Kroah-Hartman
2019-10-28 13:57 ` Greg Kroah-Hartman
2019-10-28 18:12 ` Guenter Roeck
2019-10-29 8:19 ` Greg Kroah-Hartman
2019-10-28 13:33 ` Guenter Roeck
2019-10-28 21:36 ` Jon Hunter
2019-10-29 13:29 ` Naresh Kamboju
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