From: Wei Yang <richard.weiyang@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: kernel test robot <oliver.sang@intel.com>,
Wei Yang <richard.weiyang@gmail.com>,
oe-lkp@lists.linux.dev, lkp@intel.com,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Matthew Wilcox <willy@infradead.org>,
maple-tree@lists.infradead.org, linux-mm@kvack.org
Subject: Re: [linux-next:master] [maple_tree] 540335e987: BUG:kernel_NULL_pointer_dereference,address
Date: Fri, 20 Jun 2025 02:14:20 +0000 [thread overview]
Message-ID: <20250620021420.7rgehvgrveyagqdd@master> (raw)
In-Reply-To: <20250619154446.e9543f52bbc47e4bbd2cec29@linux-foundation.org>
On Thu, Jun 19, 2025 at 03:44:46PM -0700, Andrew Morton wrote:
>On Thu, 19 Jun 2025 15:32:12 +0800 kernel test robot <oliver.sang@intel.com> wrote:
>
>> kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on:
>>
>> commit: 540335e9878005bf238ab4e1f91e8df0e3091a03 ("maple_tree: restart walk on correct status")
>> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>>
>> [test failed on linux-next/master 6e5ab6fee68df8c40b338baeae6e269fa25a7e25]
>>
>> ...
>>
>> [ 85.008687][ T5293] RIP: 0010:mtree_range_walk (lib/maple_tree.c:2773)
>
>Seems this is
>
> if (pivots[0] >= mas->index) {
>
>It seems odd that mtree_range_walk() doesn't (and didn't) check for
>ma_pivots() returning NULL.
>
>Oh well, thanks, the report is solid - I'll drop the series.
Sorry for the trouble. It is better to drop it.
--
Wei Yang
Help you, Help me
next prev parent reply other threads:[~2025-06-20 2:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 7:32 kernel test robot
2025-06-19 22:44 ` Andrew Morton
2025-06-20 2:14 ` Wei Yang [this message]
2025-06-23 21:19 ` Liam R. Howlett
2025-06-24 6:59 ` Wei Yang
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