[PATCH net 00/19] rxrpc: Fix race between call connection, data transmit and call disconnect

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Sat Jan 7 15:20:18 PST 2023


Hello:

This series was applied to netdev/net.git (master)
by David Howells <dhowells at redhat.com>:

On Sat, 07 Jan 2023 09:52:51 +0000 you wrote:
> Here are patches to fix an oops[1] caused by a race between call
> connection, initial packet transmission and call disconnection which
> results in something like:
> 
> 	kernel BUG at net/rxrpc/peer_object.c:413!
> 
> when the syzbot test is run.  The problem is that the connection procedure
> is effectively split across two threads and can get expanded by taking an
> interrupt, thereby adding the call to the peer error distribution list
> *after* it has been disconnected (say by the rxrpc socket shutting down).
> 
> [...]

Here is the summary with links:
  - [net,01/19] rxrpc: Stash the network namespace pointer in rxrpc_local
    https://git.kernel.org/netdev/net/c/8a758d98dba3
  - [net,02/19] rxrpc: Make the local endpoint hold a ref on a connected call
    https://git.kernel.org/netdev/net/c/5040011d073d
  - [net,03/19] rxrpc: Separate call retransmission from other conn events
    https://git.kernel.org/netdev/net/c/30df927b936b
  - [net,04/19] rxrpc: Only set/transmit aborts in the I/O thread
    https://git.kernel.org/netdev/net/c/a343b174b4bd
  - [net,05/19] rxrpc: Only disconnect calls in the I/O thread
    https://git.kernel.org/netdev/net/c/03fc55adf876
  - [net,06/19] rxrpc: Implement a mechanism to send an event notification to a connection
    https://git.kernel.org/netdev/net/c/f2cce89a074e
  - [net,07/19] rxrpc: Clean up connection abort
    https://git.kernel.org/netdev/net/c/a00ce28b1778
  - [net,08/19] rxrpc: Tidy up abort generation infrastructure
    https://git.kernel.org/netdev/net/c/57af281e5389
  - [net,09/19] rxrpc: Make the set of connection IDs per local endpoint
    https://git.kernel.org/netdev/net/c/f06cb2918936
  - [net,10/19] rxrpc: Offload the completion of service conn security to the I/O thread
    https://git.kernel.org/netdev/net/c/2953d3b8d8fd
  - [net,11/19] rxrpc: Set up a connection bundle from a call, not rxrpc_conn_parameters
    https://git.kernel.org/netdev/net/c/1bab27af6b88
  - [net,12/19] rxrpc: Split out the call state changing functions into their own file
    https://git.kernel.org/netdev/net/c/0b9bb322f13d
  - [net,13/19] rxrpc: Wrap accesses to get call state to put the barrier in one place
    https://git.kernel.org/netdev/net/c/d41b3f5b9688
  - [net,14/19] rxrpc: Move call state changes from sendmsg to I/O thread
    https://git.kernel.org/netdev/net/c/2d689424b618
  - [net,15/19] rxrpc: Move call state changes from recvmsg to I/O thread
    https://git.kernel.org/netdev/net/c/93368b6bd58a
  - [net,16/19] rxrpc: Remove call->state_lock
    https://git.kernel.org/netdev/net/c/96b4059f43ce
  - [net,17/19] rxrpc: Move the client conn cache management to the I/O thread
    https://git.kernel.org/netdev/net/c/0d6bf319bc5a
  - [net,18/19] rxrpc: Move client call connection to the I/O thread
    https://git.kernel.org/netdev/net/c/9d35d880e0e4
  - [net,19/19] rxrpc: Fix incoming call setup race
    https://git.kernel.org/netdev/net/c/42f229c350f5

You are awesome, thank you!
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