We were just affected by this bug on one of our server. I was able to get some information from the kernel log (see attachment).
It appears to crash at net/ipv4/ip_output.c:636:
Sep 4 07:54:04 gonzo kernel: [ 145.912955] kernel BUG at /build/linux-5mCauq/linux-4.15.0/net/ipv4/ip_output.c:636! Sep 4 07:54:04 gonzo kernel: [ 146.005576] invalid opcode: 0000 [#1] SMP PTI
We were just affected by this bug on one of our server. I was able to get some information from the kernel log (see attachment).
It appears to crash at net/ipv4/ ip_output. c:636:
Sep 4 07:54:04 gonzo kernel: [ 145.912955] kernel BUG at /build/ linux-5mCauq/ linux-4. 15.0/net/ ipv4/ip_ output. c:636!
Sep 4 07:54:04 gonzo kernel: [ 146.005576] invalid opcode: 0000 [#1] SMP PTI