flex_array: fix the panic when calling flex_array_alloc() without __GFP_ZERO
memset() is called with the wrong address and the kernel panics. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Cc: Patrick McHardy <kaber@trash.net> Acked-by: David Rientjes <rientjes@google.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -99,7 +99,7 @@ struct flex_array *flex_array_alloc(int element_size, unsigned int total,
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ret->element_size = element_size;
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ret->total_nr_elements = total;
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if (elements_fit_in_base(ret) && !(flags & __GFP_ZERO))
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memset(ret->parts[0], FLEX_ARRAY_FREE,
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memset(&ret->parts[0], FLEX_ARRAY_FREE,
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FLEX_ARRAY_BASE_BYTES_LEFT);
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return ret;
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}
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