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Date:   Wed, 10 Aug 2022 12:50:15 +0000
To:     Ido Schimmel <>
Subject: Re: [PATCH net] devlink: Fix use-after-free after a failed reload


This patch was applied to netdev/net.git (master)
by David S. Miller <>:

On Tue,  9 Aug 2022 14:35:06 +0300 you wrote:
> After a failed devlink reload, devlink parameters are still registered,
> which means user space can set and get their values. In the case of the
> mlxsw "acl_region_rehash_interval" parameter, these operations will
> trigger a use-after-free [1].
> Fix this by rejecting set and get operations while in the failed state.
> Return the "-EOPNOTSUPP" error code which does not abort the parameters
> dump, but instead causes it to skip over the problematic parameter.
> [...]

Here is the summary with links:
  - [net] devlink: Fix use-after-free after a failed reload

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