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NFC: fdp: fix incorrect free object

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[ Upstream commit 517ce4e933 ]

The address of fw_vsc_cfg is on stack. Releasing it with devm_kfree() is
incorrect, which may result in a system crash or other security impacts.
The expected object to free is *fw_vsc_cfg.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pan Bian 2019-11-05 16:34:07 +08:00 committed by Greg Kroah-Hartman
parent 5580091ce7
commit 760a1f7f22
1 changed files with 1 additions and 1 deletions
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2
drivers/nfc/fdp/i2c.c
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@ -267,7 +267,7 @@ static void fdp_nci_i2c_read_device_properties(struct device *dev,
*fw_vsc_cfg, len);
if (r) {
devm_kfree(dev, fw_vsc_cfg);
devm_kfree(dev, *fw_vsc_cfg);
goto vsc_read_err;
}
} else {