From: patchwork-bot+netdevbpf@kernel.org
To: Petr Machata <petrm@nvidia.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
idosch@nvidia.com
Subject: Re: [PATCH net] af_netlink: Fix shift out of bounds in group mask calculation
Date: Sat, 19 Mar 2022 05:00:15 +0000 [thread overview]
Message-ID: <164766601513.31878.9967972263971698596.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <2bef6aabf201d1fc16cca139a744700cff9dcb04.1647527635.git.petrm@nvidia.com>
Hello:
This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 17 Mar 2022 15:53:06 +0100 you wrote:
> When a netlink message is received, netlink_recvmsg() fills in the address
> of the sender. One of the fields is the 32-bit bitfield nl_groups, which
> carries the multicast group on which the message was received. The least
> significant bit corresponds to group 1, and therefore the highest group
> that the field can represent is 32. Above that, the UB sanitizer flags the
> out-of-bounds shift attempts.
>
> [...]
Here is the summary with links:
- [net] af_netlink: Fix shift out of bounds in group mask calculation
https://git.kernel.org/netdev/net/c/0caf6d992219
You are awesome, thank you!
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prev parent reply other threads:[~2022-03-19 5:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-17 14:53 [PATCH net] af_netlink: Fix shift out of bounds in group mask calculation Petr Machata
2022-03-17 15:10 ` Ido Schimmel
2022-03-19 5:00 ` patchwork-bot+netdevbpf [this message]
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