random: sshd: uninitialized urandom read (32 bytes read, 107 bits of entropy available) random: sshd: uninitialized urandom read (32 bytes read, 113 bits of entropy available) IPVS: Creating netns size=2552 id=1 ip (3821) used greatest stack depth: 25016 bytes left BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor0/4000 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 1 PID: 4000 Comm: syz-executor0 Not tainted 4.4.115-g55a366596 #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 cd4af439e4eb773b ffff8801d84d7740 ffffffff81d03d8d 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d9544800 0000000000000003 ffff8801d84d7780 ffffffff81d63cd4 ffffffff81237470 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 [] tcp_prune_queue net/ipv4/tcp_input.c:4861 [inline] [] tcp_try_rmem_schedule+0xf2/0x1180 net/ipv4/tcp_input.c:4337 [] tcp_send_rcvq+0x1ba/0x450 net/ipv4/tcp_input.c:4520 [] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962 [] __sys_sendmsg+0xd3/0x190 net/socket.c:1996 [] SYSC_sendmsg net/socket.c:2007 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2003 [] entry_SYSCALL_64_fastpath+0x1c/0x98 BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor0/4000 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 1 PID: 4000 Comm: syz-executor0 Not tainted 4.4.115-g55a366596 #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 cd4af439e4eb773b ffff8801d84d7740 ffffffff81d03d8d 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d9544800 0000000000000003 ffff8801d84d7780 ffffffff81d63cd4 ffffffff8313163a Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 [] tcp_prune_queue net/ipv4/tcp_input.c:4891 [inline] [] tcp_try_rmem_schedule+0xe33/0x1180 net/ipv4/tcp_input.c:4337 [] tcp_send_rcvq+0x1ba/0x450 net/ipv4/tcp_input.c:4520 [] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962 [