From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Waiman Long <longman@redhat.com>, David Sterba <dsterba@suse.com>,
Sasha Levin <sashal@kernel.org>,
linux-btrfs@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 05/27] btrfs: use kfree() in btrfs_ioctl_get_subvol_info()
Date: Wed, 1 Jul 2020 21:25:53 -0400 [thread overview]
Message-ID: <20200702012615.2701532-5-sashal@kernel.org> (raw)
In-Reply-To: <20200702012615.2701532-1-sashal@kernel.org>
From: Waiman Long <longman@redhat.com>
[ Upstream commit b091f7fede97cc64f7aaad3eeb37965aebee3082 ]
In btrfs_ioctl_get_subvol_info(), there is a classic case where kzalloc()
was incorrectly paired with kzfree(). According to David Sterba, there
isn't any sensitive information in the subvol_info that needs to be
cleared before freeing. So kzfree() isn't really needed, use kfree()
instead.
Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/btrfs/ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a5ae02bf3652b..60418b1fcef5b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2723,7 +2723,7 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp)
out:
btrfs_free_path(path);
- kzfree(subvol_info);
+ kfree(subvol_info);
return ret;
}
--
2.25.1
next prev parent reply other threads:[~2020-07-02 1:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 1:25 [PATCH AUTOSEL 4.19 01/27] regmap: fix alignment issue Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 02/27] ARM: dts: omap4-droid4: Fix spi configuration and increase rate Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 03/27] drm/tegra: hub: Do not enable orphaned window group Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 04/27] gpu: host1x: Detach driver on unregister Sasha Levin
2020-07-02 1:25 ` Sasha Levin [this message]
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 06/27] net: usb: ax88179_178a: fix packet alignment padding Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 07/27] usb: usbtest: fix missing kfree(dev->buf) in usbtest_disconnect Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 08/27] spi: spidev: fix a race between spidev_release and spidev_remove Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 09/27] spi: spidev: fix a potential use-after-free in spidev_release() Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 10/27] tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes Sasha Levin
2020-07-02 1:25 ` [PATCH AUTOSEL 4.19 11/27] ixgbe: protect ring accesses with READ- and WRITE_ONCE Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 12/27] i40e: " Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 13/27] usbnet: smsc95xx: Fix use-after-free after removal Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 14/27] drm: panel-orientation-quirks: Add quirk for Asus T101HA panel Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 15/27] drm: panel-orientation-quirks: Use generic orientation-data for Acer S1003 Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 16/27] s390/kasan: fix early pgm check handler execution Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 17/27] s390/debug: avoid kernel warning on too large number of pages Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 18/27] cifs: Fix double add page to memcg when cifs_readpages Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 19/27] drm/sun4i: mixer: Call of_dma_configure if there's an IOMMU Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 20/27] cifs: update ctime and mtime during truncate Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 21/27] ARM: imx6: add missing put_device() call in imx6q_suspend_init() Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 22/27] scsi: mptscsih: Fix read sense data size Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 23/27] usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 24/27] block: release bip in a right way in error path Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 25/27] nvme-rdma: assign completion vector correctly Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 26/27] x86/entry: Increase entry_stack size to a full page Sasha Levin
2020-07-02 1:26 ` [PATCH AUTOSEL 4.19 27/27] kgdb: Avoid suspicious RCU usage warning Sasha Levin
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