Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 6.0 341/862] eth: sp7021: fix use after free bug in spl2sw_nvmem_get_mac_address | Date | Wed, 19 Oct 2022 10:27:08 +0200 |
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From: Zheng Wang <zyytlz.wz@163.com>
[ Upstream commit 12aece8b01507a2d357a1861f470e83621fbb6f2 ]
This frees "mac" and tries to display its address as part of the error message on the next line. Swap the order.
Fixes: fd3040b9394c ("net: ethernet: Add driver for Sunplus SP7021") Signed-off-by: Zheng Wang <zyytlz.wz@163.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/ethernet/sunplus/spl2sw_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/sunplus/spl2sw_driver.c b/drivers/net/ethernet/sunplus/spl2sw_driver.c index 546206640492..61d1d07dc070 100644 --- a/drivers/net/ethernet/sunplus/spl2sw_driver.c +++ b/drivers/net/ethernet/sunplus/spl2sw_driver.c @@ -248,8 +248,8 @@ static int spl2sw_nvmem_get_mac_address(struct device *dev, struct device_node * /* Check if mac address is valid */ if (!is_valid_ether_addr(mac)) { - kfree(mac); dev_info(dev, "Invalid mac address in nvmem (%pM)!\n", mac); + kfree(mac); return -EINVAL; } -- 2.35.1
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