Re: [PATCH net] net/smc: fix qentry overwrite for CONFIRM_LINK and ADD_LINK_CONT in smc_llc_event_handler()

[email protected] Fri, 31 Jul 2026 23:40:06 +0000

Newsgroups	org.kernel.vger.linux-s390,org.kernel.vger.netdev
Message-ID	<178554120689.949682.10784934094137290193.git-patchwork-notify@kernel.org>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email protected]>:

On Wed, 29 Jul 2026 15:01:53 +0200 you wrote:
> The SMC_LLC_CONFIRM_LINK / SMC_LLC_ADD_LINK_CONT branch in
> smc_llc_event_handler() stores an incoming qentry into the local LLC flow
> without first checking whether a qentry is already pending. If a malicious or
> buggy peer sends a second CONFIRM_LINK or ADD_LINK_CONT request while a flow is
> active and flow->qentry is already set, smc_llc_flow_qentry_set() overwrites the
> pointer without freeing the previous allocation, leaking one kmalloc-96 object
> per spurious message.
> 
> [...]

Here is the summary with links:
  - [net] net/smc: fix qentry overwrite for CONFIRM_LINK and ADD_LINK_CONT in smc_llc_event_handler()
    https://git.kernel.org/netdev/net/c/976245094925

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