Re: [PATCH v2 3/5] treewide: Replace 0-element memcpy() destinations with flexible arrays
From: Keith Packard <keithp@keithp.com>
Date: 2021-08-26 05:24:29
Also in:
linux-hardening, linux-scsi, linux-wireless, lkml, netdev
Kees Cook [off-list ref] writes:
In some cases, use of the flex_array() helper is needed when a flexible array is part of a union.
The code below seems to show that the helper is also needed when the flexible array is the only member of a struct? Or is this just an extension of the 'part of a union' clause?
quoted hunk ↗ jump to hunk
@@ -160,7 +160,7 @@ struct bmi_cmd { union bmi_resp { struct { - u8 payload[0]; + DECLARE_FLEX_ARRAY(u8, payload); } read_mem; struct { __le32 result;
-- -keith
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