From: Pavel Machek <pavel@denx.de>
To: cip-dev@lists.cip-project.org
Cc: uli+cip@fpond.eu
Subject: Re: [cip-dev] [PATCH 4.4 0/3] ALSA: control: Fix locking around snd_ctl_elem_read/write
Date: Sun, 2 Apr 2023 18:30:27 +0200 [thread overview]
Message-ID: <ZCmtowC1mia0A1Cx@duo.ucw.cz> (raw)
In-Reply-To: <20230324171812.221086-1-theflamefire89@gmail.com>
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Hi!
> I found a bug in v4.4-st38 caused by e8064dec769e6 "ALSA: pcm: Move
> rwsem lock inside snd_ctl_elem_read to prevent UAF"
One option would be to revert e8064dec769e6.
Second option is to cherry-pick these:
> Richard Fitzgerald (1):
> ALSA: control: Fix memory corruption risk in snd_ctl_elem_read
>
> Takashi Sakamoto (2):
> ALSA: control: code refactoring for ELEM_READ/ELEM_WRITE operations
> ALSA: control: use counting semaphore as write lock for ELEM_WRITE
> operation
They are in 4.14, it is probably easiest to cherry-pick them from
there.
Thanks for submission!
Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2023-04-02 16:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-24 17:18 [PATCH 4.4 0/3] ALSA: control: Fix locking around snd_ctl_elem_read/write Alexander Grund
2023-03-24 17:18 ` [PATCH 4.4 1/3] ALSA: control: code refactoring for ELEM_READ/ELEM_WRITE operations Alexander Grund
2023-03-29 22:29 ` [cip-dev] " nobuhiro1.iwamatsu
2023-03-31 15:45 ` Alexander Grund
2023-03-24 17:18 ` [PATCH 4.4 2/3] ALSA: control: Fix memory corruption risk in snd_ctl_elem_read Alexander Grund
2023-03-29 22:33 ` [cip-dev] " nobuhiro1.iwamatsu
2023-03-31 15:52 ` Alexander Grund
2023-03-24 17:18 ` [PATCH 4.4 3/3] ALSA: control: use counting semaphore as write lock for ELEM_WRITE operation Alexander Grund
2023-03-29 22:39 ` [cip-dev] " nobuhiro1.iwamatsu
2023-03-31 15:51 ` Alexander Grund
2023-04-03 8:56 ` [cip-dev] " Ulrich Hecht
2023-04-03 17:13 ` Alexander Grund
2023-04-02 16:30 ` Pavel Machek [this message]
2023-04-02 18:34 ` [PATCH 4.4 0/3] ALSA: control: Fix locking around snd_ctl_elem_read/write Alexander Grund
2023-04-03 8:56 ` [cip-dev] " Ulrich Hecht
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