Re: [PATCH v2 1/1] net/sched: cls_u32: Fix reference counter leak leading to overflow

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Thu,  8 Jun 2023 08:29:03 +0100 you wrote:
> In the event of a failure in tcf_change_indev(), u32_set_parms() will
> immediately return without decrementing the recently incremented
> reference counter.  If this happens enough times, the counter will
> rollover and the reference freed, leading to a double free which can be
> used to do 'bad things'.
> 
> In order to prevent this, move the point of possible failure above the
> point where the reference counter is incremented.  Also save any
> meaningful return values to be applied to the return data at the
> appropriate point in time.
> 
> [...]

Here is the summary with links:
  - [v2,1/1] net/sched: cls_u32: Fix reference counter leak leading to overflow
    https://git.kernel.org/netdev/net/c/04c55383fa56

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html