linux-kernel - Re: [PATCH] zsmalloc: don't underflow size calculation in zs_obj

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Message-ID: <o5xq2ojelmu5tuhiea56xctpnm7thfpkzxd56acxewbws4hwac@zgixe7zk27de>
Date: Wed, 7 May 2025 14:40:17 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Johannes Weiner <hannes@...xchg.org>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, Minchan Kim <minchan@...nel.org>, 
	Yosry Ahmed <yosry.ahmed@...ux.dev>, Vitaly Wool <vitaly.wool@...sulko.se>, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, Igor Belousov <igor.b@...dev.am>, 
	stable@...r.kernel.org
Subject: Re: [PATCH] zsmalloc: don't underflow size calculation in
 zs_obj_write()

On (25/05/06 09:56), Johannes Weiner wrote:
> Could you please include user-visible effects and circumstances that
> Igor reported? Crash, backtrace etc, 16k pages etc. in the changelog?
> 
> This type of information helps tremendously with backports, or finding
> this patch when encountering the issue in the wild.

Fair enough.   I'll send a v2 with updated commit message.