INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-3,10.128.0.50' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program syzkaller login: [ 24.554610] kasan: CONFIG_KASAN_INLINE enabled [ 24.555454] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.555527] RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? [ 24.557765] general protection fault: 0000 [#1] SMP KASAN [ 24.558498] Dumping ftrace buffer: [ 24.558973] (ftrace buffer empty) [ 24.559480] Modules linked in: [ 24.559915] CPU: 0 PID: 3083 Comm: syzkaller171547 Not tainted 4.14.0-mm1+ #24 [ 24.560877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.562126] task: ffff8801cb68e0c0 task.stack: ffff8801cb4f8000 [ 24.562947] RIP: 0010:__rds_rdma_map+0x133/0x1050 [ 24.563586] RSP: 0018:ffff8801cb4ffa28 EFLAGS: 00010206 [ 24.564316] RAX: dffffc0000000000 RBX: ffff8801cb4ffbd0 RCX: ffffffff84c0f6ad [ 24.565278] RDX: 0000000000000018 RSI: ffff8801cb4ffbd0 RDI: 00000000000000c0 [ 24.566229] RBP: ffff8801cb4ffb90 R08: ffffed003969ff96 R09: ffffed003969ff96 [ 24.567217] R10: 0000000000000000 R11: ffffed003969ff95 R12: 0000000000000000 [ 24.568187] R13: ffff8801cb77f480 R14: 0000000000000000 R15: ffff8801cb77f480 [ 24.569174] FS: 00007f111abc5700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 24.570249] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.571022] CR2: 00007f111abc4e78 CR3: 00000001ce19c000 CR4: 00000000001406f0 [ 24.571973] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.572925] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.573875] Call Trace: [ 24.574238] ? lock_release+0xda0/0xda0 [ 24.574772] ? rds_pin_pages+0x300/0x300 [ 24.575313] ? lock_release+0xda0/0xda0 [ 24.579259] ? __might_sleep+0x95/0x190 [ 24.583204] ? kasan_check_write+0x14/0x20 [ 24.588461] ? _copy_from_user+0x99/0x110 [ 24.592575] rds_get_mr_for_dest+0x1bb/0x290 [ 24.596949] ? rds_get_mr+0xf0/0xf0 [ 24.600557] rds_setsockopt+0x6b9/0x970 [ 24.604497] ? rds_setsockopt+0x6b9/0x970 [ 24.608611] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 24.614291] ? rds_getsockopt+0x280/0x280 [ 24.618408] ? lock_release+0xda0/0xda0 [ 24.622349] ? selinux_socket_setsockopt+0x64/0x80 [ 24.627247] ? security_socket_setsockopt+0x89/0xb0 [ 24.632232] SyS_setsockopt+0x189/0x360 [ 24.636175] ? SyS_recv+0x40/0x40 [ 24.639597] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 24.644405] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.649390] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.654115] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.658833] RIP: 0033:0x44a789 [ 24.661987] RSP: 002b:00007f111abc4dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 24.669657] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a789 [ 24.676889] RDX: 0000000000000007 RSI: 0000400000000114 RDI: 0000000000000004 [ 24.684122] RBP: 0000000000000086 R08: 00000000000000a0 R09: 00007f111abc5700 [ 24.691355] R10: 0000000020000ffc R11: 0000000000000202 R12: 0000000000000000 [ 24.698598] R13: 00000000007efe3f R14: 00007f111abc59c0 R15: 0000000000000000 [ 24.705840] Code: 57 0d 00 00 48 8b 85 f0 fe ff ff 4c 8b a0 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 c0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6a 0e 00 00 49 83 bc 24 c0 00 00 00 00 0f 84 [ 24.724902] RIP: __rds_rdma_map+0x133/0x1050 RSP: ffff8801cb4ffa28 [ 24.731239] ---[ end trace db6c20612384eaa9 ]--- [ 24.736044] Kernel panic - not syncing: Fatal exception [ 24.741813] Dumping ftrace buffer: [ 24.745344] (ftrace buffer empty) [ 24.749022] Kernel Offset: disabled [ 24.752618] Rebooting in 86400 seconds..