linux-kernel - Re: [f2fs-dev] [PATCH 1/2] f2fs: fix iostat lock protection

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <168054661859.14597.6329451701329861497.git-patchwork-notify@kernel.org>
Date:   Mon, 03 Apr 2023 18:30:18 +0000
From:   patchwork-bot+f2fs@...nel.org
To:     Bo Ye <bo.ye@...iatek.com>
Cc:     jaegeuk@...nel.org, chao@...nel.org, matthias.bgg@...il.com,
        angelogioacchino.delregno@...labora.com, qilin.tan@...iatek.com,
        yongdong.zhang@...iatek.com, linux-kernel@...r.kernel.org,
        light.hsieh@...iatek.com, linux-f2fs-devel@...ts.sourceforge.net,
        linux-mediatek@...ts.infradead.org, browse.zhang@...iatek.com,
        linux-arm-kernel@...ts.infradead.org, peng.zhou@...iatek.com
Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: fix iostat lock protection

Hello:

This series was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@...nel.org>:

On Fri, 31 Mar 2023 17:26:56 +0800 you wrote:
> From: Qilin Tan <qilin.tan@...iatek.com>
> 
> Made iostat lock irq safe to avoid potentinal deadlock.
> 
> Deadlock scenario:
> f2fs_attr_store
>   -> f2fs_sbi_store
>   -> _sbi_store
>   -> spin_lock(sbi->iostat_lock)
>     <interrupt request>
>     -> scsi_end_request
>     -> bio_endio
>     -> f2fs_dio_read_end_io
>     -> f2fs_update_iostat
>     -> spin_lock_irqsave(sbi->iostat_lock)  ===> Dead lock here
> 
> [...]

Here is the summary with links:
  - [f2fs-dev,1/2] f2fs: fix iostat lock protection
    https://git.kernel.org/jaegeuk/f2fs/c/daa080db4e7e
  - [f2fs-dev,2/2] f2fs: add __pack attribute for extent_info
    (no matching commit)

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html