dbus/socket: protect against no-op arithmetic on NULL pointers #372
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The socket layer assumes that computing `NULL + 0` produces `NULL`. Unfortunately, this is UB. Protect against this pointer arithmetic and ensure we correctly skip empty IOVs when consuming socket buffers. Reported-by: Frantisek Sumsal <[email protected]> Signed-off-by: David Rheinsberg <[email protected]>
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The socket layer assumes that computing
NULL + 0producesNULL. Unfortunately, this is UB. Protect against this pointer arithmetic and ensure we correctly skip empty IOVs when consuming socket buffers.Reported in #365.