Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.113' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 59.844087][ T7184] IPVS: ftp: loaded support on port[0] = 21 [ 59.982047][ T7184] infiniband syz0: set active [ 59.988212][ T7184] infiniband syz0: added syz_tun [ 60.027506][ T7184] general protection fault, probably for non-canonical address 0xdffffc000000008e: 0000 [#1] PREEMPT SMP KASAN [ 60.039253][ T7184] KASAN: null-ptr-deref in range [0x0000000000000470-0x0000000000000477] [ 60.047682][ T7184] CPU: 1 PID: 7184 Comm: syz-executor761 Not tainted 5.7.0-rc7-syzkaller #0 [ 60.056888][ T7184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.067108][ T7184] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 60.072454][ T7184] 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 [ 60.092590][ T7184] RSP: 0018:ffffc900016b6fe0 EFLAGS: 00010206 [ 60.098639][ T7184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8753d08a [ 60.106648][ T7184] RDX: 000000000000008e RSI: ffffffff8753d0a8 RDI: 0000000000000470 [ 60.114605][ T7184] RBP: 0000000000000001 R08: ffff88809147e000 R09: ffffed10128dd89f [ 60.122665][ T7184] R10: ffff8880946ec4f7 R11: ffffed10128dd89e R12: ffff8880946ec000 [ 60.130636][ T7184] R13: ffffffff8a74ea40 R14: 1ffff920002d6e07 R15: ffff8880946ec4e8 [ 60.138619][ T7184] FS: 0000000001817880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 60.147614][ T7184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.154190][ T7184] CR2: 00007f6cdd123710 CR3: 00000000a64e6000 CR4: 00000000001406e0 [ 60.162159][ T7184] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.170138][ T7184] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.178119][ T7184] Call Trace: [ 60.181396][ T7184] ? rds_ib_remove_one+0x280/0x280 [ 60.186498][ T7184] add_client_context+0x3b4/0x520 [ 60.191530][ T7184] ? ib_device_get_by_netdev+0x4f0/0x4f0 [ 60.197152][ T7184] ? rxe_enable_driver+0x63/0x90 [ 60.202157][ T7184] enable_device_and_get+0x1cd/0x3b0 [ 60.207476][ T7184] ? add_one_compat_dev+0x800/0x800 [ 60.212673][ T7184] ? rxe_ib_alloc_hw_stats+0xf9/0x130 [ 60.218036][ T7184] ib_register_device+0xa12/0xda0 [ 60.223139][ T7184] ? enable_device_and_get+0x3b0/0x3b0 [ 60.228659][ T7184] ? crypto_create_tfm+0x118/0x2f0 [ 60.233758][ T7184] ? crypto_alloc_tfm+0x124/0x340 [ 60.239045][ T7184] ? ib_device_set_netdev+0x499/0x680 [ 60.244744][ T7184] rxe_register_device+0x4fa/0x621 [ 60.250215][ T7184] rxe_add+0x1353/0x17df [ 60.254461][ T7184] rxe_net_add+0x8c/0xe0 [ 60.258711][ T7184] rxe_newlink+0x34/0x90 [ 60.262933][ T7184] nldev_newlink+0x29e/0x420 [ 60.268218][ T7184] ? nldev_set_doit+0x410/0x410 [ 60.273067][ T7184] ? lock_release+0x800/0x800 [ 60.277722][ T7184] ? apparmor_capable+0x454/0x8a0 [ 60.282733][ T7184] ? apparmor_capable+0x454/0x8a0 [ 60.287754][ T7184] ? apparmor_cred_prepare+0x750/0x750 [ 60.293200][ T7184] ? apparmor_cred_prepare+0x750/0x750 [ 60.298680][ T7184] ? cap_capable+0x1eb/0x250 [ 60.303382][ T7184] ? ns_capable_common+0xe2/0x100 [ 60.308474][ T7184] ? nldev_set_doit+0x410/0x410 [ 60.313626][ T7184] rdma_nl_rcv+0x586/0x900 [ 60.318613][ T7184] ? rdma_nl_multicast+0x310/0x310 [ 60.323911][ T7184] ? netlink_deliver_tap+0x227/0xb50 [ 60.329336][ T7184] netlink_unicast+0x537/0x740 [ 60.334100][ T7184] ? netlink_attachskb+0x810/0x810 [ 60.339336][ T7184] ? _copy_from_iter_full+0x25c/0x870 [ 60.344785][ T7184] ? __phys_addr_symbol+0x2c/0x70 [ 60.349797][ T7184] ? __check_object_size+0x171/0x437 [ 60.355064][ T7184] netlink_sendmsg+0x882/0xe10 [ 60.359825][ T7184] ? aa_af_perm+0x260/0x260 [ 60.364306][ T7184] ? netlink_unicast+0x740/0x740 [ 60.369238][ T7184] ? netlink_unicast+0x740/0x740 [ 60.374425][ T7184] sock_sendmsg+0xcf/0x120 [ 60.378951][ T7184] ____sys_sendmsg+0x6e6/0x810 [ 60.383816][ T7184] ? kernel_sendmsg+0x50/0x50 [ 60.388640][ T7184] ? lock_downgrade+0x840/0x840 [ 60.393485][ T7184] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 60.399205][ T7184] ___sys_sendmsg+0x100/0x170 [ 60.404107][ T7184] ? sendmsg_copy_msghdr+0x70/0x70 [ 60.409201][ T7184] ? mark_held_locks+0xe0/0xe0 [ 60.413949][ T7184] ? prep_transhuge_page+0xa0/0xa0 [ 60.419058][ T7184] ? pud_val+0x7c/0xf0 [ 60.423657][ T7184] ? pmd_val+0xf0/0xf0 [ 60.427823][ T7184] ? percpu_counter_add_batch+0x123/0x180 [ 60.433525][ T7184] ? find_held_lock+0x2d/0x110 [ 60.438269][ T7184] ? do_page_fault+0x59e/0x13da [ 60.443202][ T7184] ? vm_insert_pages+0x6a0/0x6a0 [ 60.448114][ T7184] ? lock_downgrade+0x840/0x840 [ 60.452939][ T7184] ? __fget_light+0x1ab/0x270 [ 60.457703][ T7184] __sys_sendmsg+0xe5/0x1b0 [ 60.462187][ T7184] ? __sys_sendmsg_sock+0xb0/0xb0 [ 60.467190][ T7184] ? down_read_nested+0x420/0x420 [ 60.472232][ T7184] ? trace_hardirqs_off_caller+0x55/0x230 [ 60.477953][ T7184] ? do_syscall_64+0x21/0x7d0 [ 60.482676][ T7184] do_syscall_64+0xf6/0x7d0 [ 60.487175][ T7184] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 60.493052][ T7184] RIP: 0033:0x4413d9 [ 60.497046][ T7184] 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 [ 60.516655][ T7184] RSP: 002b:00007ffc4f6ddba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.525069][ T7184] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004413d9 [ 60.533075][ T7184] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 60.541020][ T7184] RBP: 00007ffc4f6ddbc0 R08: 00000000bb1414ac R09: 00000000bb1414ac [ 60.549079][ T7184] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 60.557039][ T7184] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.565020][ T7184] Modules linked in: [ 60.570218][ T7184] ---[ end trace a53a33e2d32c895f ]--- [ 60.575866][ T7184] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 60.582069][ T7184] 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 [ 60.602578][ T7184] RSP: 0018:ffffc900016b6fe0 EFLAGS: 00010206 [ 60.609033][ T7184] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8753d08a [ 60.617226][ T7184] RDX: 000000000000008e RSI: ffffffff8753d0a8 RDI: 0000000000000470 [ 60.625344][ T7184] RBP: 0000000000000001 R08: ffff88809147e000 R09: ffffed10128dd89f [ 60.633690][ T7184] R10: ffff8880946ec4f7 R11: ffffed10128dd89e R12: ffff8880946ec000 [ 60.641880][ T7184] R13: ffffffff8a74ea40 R14: 1ffff920002d6e07 R15: ffff8880946ec4e8 [ 60.650256][ T7184] FS: 0000000001817880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 60.659616][ T7184] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.666355][ T7184] CR2: 0000562b6ae4e750 CR3: 00000000a64e6000 CR4: 00000000001406e0 [ 60.674848][ T7184] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.683412][ T7184] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.691438][ T7184] Kernel panic - not syncing: Fatal exception [ 60.698756][ T7184] Kernel Offset: disabled [ 60.703088][ T7184] Rebooting in 86400 seconds..