* libs/libc/misc/lib_getrandom.c, in function getrandom():
We were assigning the return value of _NX_READ() to nbytes, a
variable of the unsigned type size_t. Note that _NX_READ() resolves
to either read() or nx_read(), both of which return the signed type
ssize_t to indicate either the number of bytes read successfully
(>= 0) or an error (< 0). Then we were testing for a negative
size_t value, a condition that can never occur. The end result is
that if an error occured in _NX_READ(), it would never be detected
and getrandom() would return some large positive value. This bug is
corrected by assigning the return value of _NX_READ() to a new local
variable, ret, of size ssize_t.
