netdev - Re: [PATCH v11] net/bnx2x: Prevent access to a freed page in page

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Message-Id: 
 <171090422871.19504.16129773459568231603.git-patchwork-notify@kernel.org>
Date: Wed, 20 Mar 2024 03:10:28 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Thinh Tran <thinhtr@...ux.ibm.com>
Cc: jacob.e.keller@...el.com, kuba@...nel.org, netdev@...r.kernel.org,
 VENKATA.SAI.DUGGI@....com, abdhalee@...ibm.com, aelior@...vell.com,
 davem@...emloft.net, drc@...ux.vnet.ibm.com, edumazet@...gle.com,
 manishc@...vell.com, pabeni@...hat.com, simon.horman@...igine.com,
 skalluru@...vell.com
Subject: Re: [PATCH v11] net/bnx2x: Prevent access to a freed page in page_pool

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Fri, 15 Mar 2024 15:55:35 -0500 you wrote:
> Fix race condition leading to system crash during EEH error handling
> 
> During EEH error recovery, the bnx2x driver's transmit timeout logic
> could cause a race condition when handling reset tasks. The
> bnx2x_tx_timeout() schedules reset tasks via bnx2x_sp_rtnl_task(),
> which ultimately leads to bnx2x_nic_unload(). In bnx2x_nic_unload()
> SGEs are freed using bnx2x_free_rx_sge_range(). However, this could
> overlap with the EEH driver's attempt to reset the device using
> bnx2x_io_slot_reset(), which also tries to free SGEs. This race
> condition can result in system crashes due to accessing freed memory
> locations in bnx2x_free_rx_sge()
> 
> [...]

Here is the summary with links:
  - [v11] net/bnx2x: Prevent access to a freed page in page_pool
    https://git.kernel.org/netdev/net/c/d27e2da94a42

You are awesome, thank you!
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