[dev] frr 8.4.x and 8.5 trigger assertion in bgpd/bgp_lcommunity.c:236

Tue Apr 18 07:10:45 UTC 2023

Hi!

This caused bgpd to terminate on several boxes this morning:

2023/04/18 08:43:47 BGP: bgpd/bgp_lcommunity.c:236: set_lcommunity_string(): assertion ((unsigned int)len < str_buf_sz) failed
BGP: Received signal 6 at 1681800227 (si_addr 0x0); aborting...

OS: FreeBSD 13.1p3. frr was 8.4.x and 8.5. So someone is sending
strange things... ?

7.5.1 is not affected...

Any ideas on how to avoid the assert ?

-- 
pi at opsec.eu            +49 171 3101372                    Now what ?