Messages in this thread | | | Subject | Re: [PATCH net] rxrpc: Fix call timer start racing with call destruction | From | patchwork-bot+netdevbpf@kernel ... | Date | Thu, 31 Mar 2022 10:50:10 +0000 |
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Hello:
This patch was applied to netdev/net.git (master) by Paolo Abeni <pabeni@redhat.com>:
On Wed, 30 Mar 2022 15:39:16 +0100 you wrote: > The rxrpc_call struct has a timer used to handle various timed events > relating to a call. This timer can get started from the packet input > routines that are run in softirq mode with just the RCU read lock held. > Unfortunately, because only the RCU read lock is held - and neither ref or > other lock is taken - the call can start getting destroyed at the same time > a packet comes in addressed to that call. This causes the timer - which > was already stopped - to get restarted. Later, the timer dispatch code may > then oops if the timer got deallocated first. > > [...]
Here is the summary with links: - [net] rxrpc: Fix call timer start racing with call destruction https://git.kernel.org/netdev/net/c/4a7f62f91933
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