From: patchwork-bot+netdevbpf@kernel.org
To: Yochai E <echelonh@gmail.com>
Cc: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us,
security@kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
Date: Tue, 31 Mar 2026 01:00:05 +0000 [thread overview]
Message-ID: <177491880562.2039242.10970042830045841478.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260328211436.1010152-1-echelonh@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Sun, 29 Mar 2026 00:14:36 +0300 you wrote:
> When building netlink messages, tc_chain_fill_node() never initializes
> the tcm_info field of struct tcmsg. Since the allocation is not zeroed,
> kernel heap memory is leaked to userspace through this 4-byte field.
>
> The fix simply zeroes tcm_info alongside the other fields that are
> already initialized.
>
> [...]
Here is the summary with links:
- net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
https://git.kernel.org/netdev/net/c/e6e3eb5ee89a
You are awesome, thank you!
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prev parent reply other threads:[~2026-03-31 1:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-28 21:14 [PATCH] net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak Yochai Eisenrich
2026-03-29 12:16 ` Jamal Hadi Salim
2026-03-31 1:00 ` patchwork-bot+netdevbpf [this message]
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