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net: fool proof dev_valid_name()
We want to use dev_valid_name() to validate tunnel names, so better use strnlen(name, IFNAMSIZ) than strlen(name) to make sure to not upset KASAN. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1027,7 +1027,7 @@ bool dev_valid_name(const char *name)
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{
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if (*name == '\0')
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return false;
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if (strlen(name) >= IFNAMSIZ)
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if (strnlen(name, IFNAMSIZ) == IFNAMSIZ)
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return false;
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if (!strcmp(name, ".") || !strcmp(name, ".."))
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return false;
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