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net: mctp: test: Use correct skb for route input check [ Upstream commit ce335db0621648472f9bb4b7191eb2e13a5793cf ] In the MCTP route input test, we're routing one skb, then (when delivery is expected) checking the resulting routed skb. However, we're currently checking the original skb length, rather than the routed skb. Check the routed skb instead; the original will have been freed at this point. Fixes: 8892c0490779 ("mctp: Add route input to socket tests") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/kernel-janitors/4ad204f0-94cf-46c5-bdab-49592addf315@kili.mountain/ Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240816-mctp-kunit-skb-fix-v1-1-3c367ac89c27@codeconstruct.com.au Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> | 1 年前 | |
mctp: make __mctp_dev_get() take a refcount hold Previously there was a race that could allow the mctp_dev refcount to hit zero: rcu_read_lock(); mdev = __mctp_dev_get(dev); // mctp_unregister() happens here, mdev->refs hits zero mctp_dev_hold(dev); rcu_read_unlock(); Now we make __mctp_dev_get() take the hold itself. It is safe to test against the zero refcount because __mctp_dev_get() is called holding rcu_read_lock and mctp_dev uses kfree_rcu(). Reported-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> | 4 年前 | |
mctp: Add test utils Add a new object for shared test utilities Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> | 4 年前 |
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