main/quagga: segfault in nhrpd-1.2.4

Not sure how to reproduce, but nhrpd 1.2.4 crashed due to a segfault

nhrpd[2870]: segfault at 55c6ee781bd0 ip 000055c6ee781bd0 sp 00007ffebf20b958 error 15
Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe 7f 00 00 40 67 77 ee c6 55 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <21> 01 00 00 00 00 00 00 c0 23 00 00 00 00 00 00 a0 6e f9 25 2f 7f
nhrpd[24345]: segfault at 0 ip 0000563a8b11df8e sp 00007fff7bc74620 error 4 in nhrpd[563a8b118000+d000]
Code: 15 48 8b 3d 14 2c 09 00 48 89 ee e8 2c a8 ff ff 48 89 ef 5d eb 9b 5d c3 c3 41 54 49 89 f4 55 48 89 fd 53 48 8b 07 c6 47 11 01 <48> 8b 18 48 39 c5 74 11 48 89 c7 4c 89 e6 ff 50 10 48 89 d8 48 8b