[linux-next:master] [maple_tree] 540335e987: BUG:kernel_NULL_pointer_dereference,address

[Wei Yang]

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 at 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
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