| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 14/76] wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle | Date | Wed, 22 Jan 2020 10:28:30 +0100 |
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From: Navid Emamdoost <navid.emamdoost@gmail.com>
commit 6f3ef5c25cc762687a7341c18cbea5af54461407 upstream.
In the implementation of i2400m_op_rfkill_sw_toggle() the allocated buffer for cmd should be released before returning. The documentation for i2400m_msg_to_dev() says when it returns the buffer can be reused. Meaning cmd should be released in either case. Move kfree(cmd) before return to be reached by all execution paths.
Fixes: 2507e6ab7a9a ("wimax: i2400: fix memory leak") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/wimax/i2400m/op-rfkill.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wimax/i2400m/op-rfkill.c +++ b/drivers/net/wimax/i2400m/op-rfkill.c @@ -142,12 +142,12 @@ int i2400m_op_rfkill_sw_toggle(struct wi "%d\n", result); result = 0; error_cmd: - kfree(cmd); kfree_skb(ack_skb); error_msg_to_dev: error_alloc: d_fnend(4, dev, "(wimax_dev %p state %d) = %d\n", wimax_dev, state, result); + kfree(cmd); return result; }
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