[ OK ] Started Permit User Sessions. [ OK ] Started System Logging Service. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. Starting Load/Save RF Kill Switch Status... [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.120' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.378012][ T7056] IPVS: ftp: loaded support on port[0] = 21 [ 56.511483][ T7056] infiniband syz0: set active [ 56.516796][ T7056] infiniband syz0: added syz_tun [ 56.553541][ T7056] general protection fault, probably for non-canonical address 0xdffffc000000008e: 0000 [#1] PREEMPT SMP KASAN [ 56.565628][ T7056] KASAN: null-ptr-deref in range [0x0000000000000470-0x0000000000000477] [ 56.574123][ T7056] CPU: 0 PID: 7056 Comm: syz-executor857 Not tainted 5.7.0-rc7-syzkaller #0 [ 56.582875][ T7056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.593424][ T7056] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 56.598806][ T7056] Code: 80 3c 02 00 0f 85 45 0a 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 5a [ 56.622333][ T7056] RSP: 0018:ffffc900018f6fe0 EFLAGS: 00010206 [ 56.628487][ T7056] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8750293a [ 56.636822][ T7056] RDX: 000000000000008e RSI: ffffffff87502958 RDI: 0000000000000470 [ 56.644987][ T7056] RBP: 0000000000000001 R08: ffff88808f5782c0 R09: ffffed101292589f [ 56.653228][ T7056] R10: ffff88809492c4f7 R11: ffffed101292589e R12: ffff88809492c000 [ 56.661214][ T7056] R13: ffffffff8a745600 R14: 1ffff9200031ee07 R15: ffff88809492c4e8 [ 56.670016][ T7056] FS: 00000000011c8880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 56.679618][ T7056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.686187][ T7056] CR2: 000055ed309898f8 CR3: 00000000a1bff000 CR4: 00000000001406f0 [ 56.694144][ T7056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.702707][ T7056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.711186][ T7056] Call Trace: [ 56.714479][ T7056] ? rds_ib_remove_one+0x280/0x280 [ 56.719572][ T7056] add_client_context+0x3b4/0x520 [ 56.724585][ T7056] ? ib_device_get_by_netdev+0x4f0/0x4f0 [ 56.730316][ T7056] ? rxe_enable_driver+0x63/0x90 [ 56.735349][ T7056] enable_device_and_get+0x1cd/0x3b0 [ 56.740910][ T7056] ? add_one_compat_dev+0x800/0x800 [ 56.746096][ T7056] ? rxe_ib_alloc_hw_stats+0xf9/0x130 [ 56.756236][ T7056] ib_register_device+0xa12/0xda0 [ 56.761415][ T7056] ? enable_device_and_get+0x3b0/0x3b0 [ 56.766851][ T7056] ? crypto_create_tfm+0x118/0x2f0 [ 56.771969][ T7056] ? crypto_alloc_tfm+0x124/0x340 [ 56.778322][ T7056] ? ib_device_set_netdev+0x499/0x680 [ 56.783985][ T7056] rxe_register_device+0x4fa/0x621 [ 56.790675][ T7056] rxe_add+0x1353/0x17df [ 56.795872][ T7056] rxe_net_add+0x8c/0xe0 [ 56.800398][ T7056] rxe_newlink+0x34/0x90 [ 56.805158][ T7056] nldev_newlink+0x29e/0x420 [ 56.809815][ T7056] ? nldev_set_doit+0x410/0x410 [ 56.814672][ T7056] ? lock_release+0x800/0x800 [ 56.819823][ T7056] ? apparmor_capable+0x454/0x8a0 [ 56.824818][ T7056] ? apparmor_capable+0x454/0x8a0 [ 56.829912][ T7056] ? apparmor_cred_prepare+0x750/0x750 [ 56.836482][ T7056] ? apparmor_cred_prepare+0x750/0x750 [ 56.841987][ T7056] ? cap_capable+0x1eb/0x250 [ 56.846678][ T7056] ? ns_capable_common+0xe2/0x100 [ 56.851698][ T7056] ? nldev_set_doit+0x410/0x410 [ 56.856558][ T7056] rdma_nl_rcv+0x586/0x900 [ 56.861257][ T7056] ? rdma_nl_multicast+0x310/0x310 [ 56.866375][ T7056] ? netlink_deliver_tap+0x227/0xb50 [ 56.871642][ T7056] netlink_unicast+0x537/0x740 [ 56.876396][ T7056] ? netlink_attachskb+0x810/0x810 [ 56.881845][ T7056] ? _copy_from_iter_full+0x25c/0x870 [ 56.889471][ T7056] ? __phys_addr_symbol+0x2c/0x70 [ 56.894817][ T7056] ? __check_object_size+0x171/0x437 [ 56.900093][ T7056] netlink_sendmsg+0x882/0xe10 [ 56.905019][ T7056] ? aa_af_perm+0x260/0x260 [ 56.909535][ T7056] ? netlink_unicast+0x740/0x740 [ 56.914448][ T7056] ? netlink_unicast+0x740/0x740 [ 56.919359][ T7056] sock_sendmsg+0xcf/0x120 [ 56.923759][ T7056] ____sys_sendmsg+0x6bf/0x7e0 [ 56.928517][ T7056] ? kernel_sendmsg+0x50/0x50 [ 56.933385][ T7056] ? lock_downgrade+0x840/0x840 [ 56.938250][ T7056] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.944786][ T7056] ___sys_sendmsg+0x100/0x170 [ 56.949841][ T7056] ? sendmsg_copy_msghdr+0x70/0x70 [ 56.955531][ T7056] ? mark_held_locks+0xe0/0xe0 [ 56.960346][ T7056] ? prep_transhuge_page+0xa0/0xa0 [ 56.965523][ T7056] ? pud_val+0x7c/0xf0 [ 56.970610][ T7056] ? pmd_val+0xf0/0xf0 [ 56.975200][ T7056] ? percpu_counter_add_batch+0x123/0x180 [ 56.981542][ T7056] ? find_held_lock+0x2d/0x110 [ 56.986389][ T7056] ? do_page_fault+0x59e/0x13da [ 56.991492][ T7056] ? vm_insert_pages+0x6a0/0x6a0 [ 56.996514][ T7056] ? lock_downgrade+0x840/0x840 [ 57.003107][ T7056] ? __fget_light+0x1ab/0x270 [ 57.008309][ T7056] __sys_sendmsg+0xec/0x1b0 [ 57.012888][ T7056] ? __sys_sendmsg_sock+0xb0/0xb0 [ 57.018044][ T7056] ? down_read_nested+0x420/0x420 [ 57.023443][ T7056] ? trace_hardirqs_off_caller+0x55/0x230 [ 57.029417][ T7056] ? do_syscall_64+0x21/0x7d0 [ 57.034187][ T7056] do_syscall_64+0xf6/0x7d0 [ 57.038918][ T7056] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 57.045009][ T7056] RIP: 0033:0x4413d9 [ 57.049200][ T7056] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 6b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.069919][ T7056] RSP: 002b:00007ffd7069eaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 57.078519][ T7056] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004413d9 [ 57.086481][ T7056] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 57.095480][ T7056] RBP: 00007ffd7069eac0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 57.103523][ T7056] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.111789][ T7056] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.119844][ T7056] Modules linked in: [ 57.125024][ T7056] ---[ end trace b6e419ad8c4dc6d7 ]--- [ 57.130591][ T7056] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 57.137168][ T7056] Code: 80 3c 02 00 0f 85 45 0a 00 00 49 8b 9c 24 f0 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 70 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 5a [ 57.159219][ T7056] RSP: 0018:ffffc900018f6fe0 EFLAGS: 00010206 [ 57.165754][ T7056] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8750293a [ 57.174058][ T7056] RDX: 000000000000008e RSI: ffffffff87502958 RDI: 0000000000000470 [ 57.182280][ T7056] RBP: 0000000000000001 R08: ffff88808f5782c0 R09: ffffed101292589f [ 57.190405][ T7056] R10: ffff88809492c4f7 R11: ffffed101292589e R12: ffff88809492c000 [ 57.198770][ T7056] R13: ffffffff8a745600 R14: 1ffff9200031ee07 R15: ffff88809492c4e8 [ 57.207689][ T7056] FS: 00000000011c8880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 57.217234][ T7056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.223866][ T7056] CR2: 000055ed309898f8 CR3: 00000000a1bff000 CR4: 00000000001406f0 [ 57.232212][ T7056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.240994][ T7056] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.249208][ T7056] Kernel panic - not syncing: Fatal exception [ 57.257003][ T7056] Kernel Offset: disabled [ 57.261462][ T7056] Rebooting in 86400 seconds..