Thread (3 messages) 3 messages, 3 authors, 2026-09-18

Re: [PATCH net] net/sched: act_ct: don't WARN on benign flow_offload_alloc() failure

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From: patchwork-bot+netdevbpf@kernel.org
Date: 2026-09-18 23:41:12
Also in: lkml

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Tue, 15 Sep 2026 22:08:16 +0700 you wrote:
flow_offload_alloc() returns NULL when the conntrack entry is dying
(e.g. raced with a conntrack flush) or when the GFP_ATOMIC allocation
fails; both are expected under load and neither is a kernel bug. This
path runs from softirq on every committed packet, so with
panic_on_warn=1 an unprivileged user can panic the box just by racing
a conntrack flush against a `tc ... action ct commit` classifier.

[...]
Here is the summary with links:
  - [net] net/sched: act_ct: don't WARN on benign flow_offload_alloc() failure
    https://git.kernel.org/netdev/net/c/47abe7a5c4eb

You are awesome, thank you!
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