Commit 84a7c0b1 authored by Manuel Schölling's avatar Manuel Schölling Committed by David S. Miller

dns_resolver: assure that dns_query() result is null-terminated

dns_query() credulously assumes that keys are null-terminated and
returns a copy of a memory block that is off by one.
Signed-off-by: default avatarManuel Schölling <manuel.schoelling@gmx.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2346829e
...@@ -149,7 +149,9 @@ int dns_query(const char *type, const char *name, size_t namelen, ...@@ -149,7 +149,9 @@ int dns_query(const char *type, const char *name, size_t namelen,
if (!*_result) if (!*_result)
goto put; goto put;
memcpy(*_result, upayload->data, len + 1); memcpy(*_result, upayload->data, len);
*_result[len] = '\0';
if (_expiry) if (_expiry)
*_expiry = rkey->expiry; *_expiry = rkey->expiry;
......
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