Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.132177][ T7048] dummy0 speed is unknown, defaulting to 1000 [ 56.138822][ T7048] dummy0 speed is unknown, defaulting to 1000 [ 56.146598][ T7048] dummy0 speed is unknown, defaulting to 1000 [ 56.234490][ T7048] infiniband syz0: set down [ 56.239502][ T22] dummy0 speed is unknown, defaulting to 1000 [ 56.245717][ T7048] infiniband syz0: added dummy0 [ 56.287036][ T7048] general protection fault, probably for non-canonical address 0xdffffc000000008e: 0000 [#1] PREEMPT SMP KASAN [ 56.298770][ T7048] KASAN: null-ptr-deref in range [0x0000000000000470-0x0000000000000477] [ 56.307186][ T7048] CPU: 1 PID: 7048 Comm: syz-executor602 Not tainted 5.7.0-rc5-syzkaller #0 [ 56.315844][ T7048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.325908][ T7048] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 56.331269][ T7048] 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 [ 56.350905][ T7048] RSP: 0018:ffffc90001826fe0 EFLAGS: 00010206 [ 56.356966][ T7048] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87501fca [ 56.364933][ T7048] RDX: 000000000000008e RSI: ffffffff87501fe8 RDI: 0000000000000470 [ 56.372924][ T7048] RBP: 0000000000000001 R08: ffff8880a84a8600 R09: ffffed1012a0f89f [ 56.380925][ T7048] R10: ffff88809507c4f7 R11: ffffed1012a0f89e R12: ffff88809507c000 [ 56.388974][ T7048] R13: ffffffff8a744f40 R14: 1ffff92000304e07 R15: ffff88809507c4e8 [ 56.397031][ T7048] FS: 000000000233f880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 56.405937][ T7048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.412508][ T7048] CR2: 00007ffc0f7659f0 CR3: 000000009611f000 CR4: 00000000001406e0 [ 56.420454][ T7048] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.428486][ T7048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.436690][ T7048] Call Trace: [ 56.439973][ T7048] ? rds_ib_remove_one+0x280/0x280 [ 56.445074][ T7048] add_client_context+0x3b4/0x520 [ 56.450085][ T7048] ? ib_device_get_by_netdev+0x4f0/0x4f0 [ 56.455690][ T7048] ? rxe_enable_driver+0x63/0x90 [ 56.460602][ T7048] enable_device_and_get+0x1cd/0x3b0 [ 56.465863][ T7048] ? add_one_compat_dev+0x800/0x800 [ 56.471043][ T7048] ? rxe_ib_alloc_hw_stats+0xf9/0x130 [ 56.476394][ T7048] ib_register_device+0xa12/0xda0 [ 56.481410][ T7048] ? enable_device_and_get+0x3b0/0x3b0 [ 56.486841][ T7048] ? crypto_create_tfm+0x118/0x2f0 [ 56.492096][ T7048] ? crypto_alloc_tfm+0x124/0x340 [ 56.497106][ T7048] ? ib_device_set_netdev+0x499/0x680 [ 56.502451][ T7048] rxe_register_device+0x4fa/0x621 [ 56.507547][ T7048] rxe_add+0x1353/0x17df [ 56.512642][ T7048] rxe_net_add+0x8c/0xe0 [ 56.516863][ T7048] rxe_newlink+0x34/0x90 [ 56.521093][ T7048] nldev_newlink+0x29e/0x420 [ 56.525656][ T7048] ? nldev_set_doit+0x410/0x410 [ 56.530494][ T7048] ? lock_release+0x800/0x800 [ 56.535156][ T7048] ? apparmor_capable+0x454/0x8a0 [ 56.541121][ T7048] ? apparmor_capable+0x454/0x8a0 [ 56.546123][ T7048] ? apparmor_cred_prepare+0x750/0x750 [ 56.551556][ T7048] ? apparmor_cred_prepare+0x750/0x750 [ 56.556993][ T7048] ? cap_capable+0x1eb/0x250 [ 56.561667][ T7048] ? ns_capable_common+0xe2/0x100 [ 56.566665][ T7048] ? nldev_set_doit+0x410/0x410 [ 56.571487][ T7048] rdma_nl_rcv+0x586/0x900 [ 56.576140][ T7048] ? rdma_nl_multicast+0x310/0x310 [ 56.581227][ T7048] ? __this_cpu_preempt_check+0x84/0x190 [ 56.586835][ T7048] ? smp_apic_timer_interrupt+0x1b6/0x600 [ 56.592542][ T7048] ? retint_kernel+0x2b/0x2b [ 56.597222][ T7048] ? netlink_unicast+0x513/0x740 [ 56.602156][ T7048] netlink_unicast+0x537/0x740 [ 56.606900][ T7048] ? netlink_attachskb+0x810/0x810 [ 56.612100][ T7048] ? _copy_from_iter_full+0x25c/0x870 [ 56.617468][ T7048] ? __phys_addr_symbol+0x2c/0x70 [ 56.622467][ T7048] ? __check_object_size+0x171/0x437 [ 56.627735][ T7048] netlink_sendmsg+0x882/0xe10 [ 56.632472][ T7048] ? aa_af_perm+0x260/0x260 [ 56.636943][ T7048] ? netlink_unicast+0x740/0x740 [ 56.641857][ T7048] ? netlink_unicast+0x740/0x740 [ 56.646774][ T7048] sock_sendmsg+0xcf/0x120 [ 56.651210][ T7048] ____sys_sendmsg+0x6bf/0x7e0 [ 56.656008][ T7048] ? kernel_sendmsg+0x50/0x50 [ 56.660695][ T7048] ? lock_downgrade+0x840/0x840 [ 56.665520][ T7048] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 56.671037][ T7048] ___sys_sendmsg+0x100/0x170 [ 56.675685][ T7048] ? sendmsg_copy_msghdr+0x70/0x70 [ 56.680771][ T7048] ? mark_held_locks+0xe0/0xe0 [ 56.685507][ T7048] ? prep_transhuge_page+0xa0/0xa0 [ 56.690673][ T7048] ? pud_val+0x7c/0xf0 [ 56.694724][ T7048] ? pmd_val+0xf0/0xf0 [ 56.698776][ T7048] ? percpu_counter_add_batch+0x123/0x180 [ 56.704481][ T7048] ? find_held_lock+0x2d/0x110 [ 56.709224][ T7048] ? do_page_fault+0x59e/0x13da [ 56.714045][ T7048] ? vm_insert_pages+0x6a0/0x6a0 [ 56.718964][ T7048] ? lock_downgrade+0x840/0x840 [ 56.723786][ T7048] ? __fget_light+0x1ab/0x270 [ 56.728434][ T7048] __sys_sendmsg+0xec/0x1b0 [ 56.732908][ T7048] ? __sys_sendmsg_sock+0xb0/0xb0 [ 56.737903][ T7048] ? down_read_nested+0x420/0x420 [ 56.742910][ T7048] ? trace_hardirqs_off_caller+0x55/0x230 [ 56.748683][ T7048] ? do_syscall_64+0x21/0x7d0 [ 56.753369][ T7048] do_syscall_64+0xf6/0x7d0 [ 56.757852][ T7048] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 56.763742][ T7048] RIP: 0033:0x440349 [ 56.767618][ T7048] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.787256][ T7048] RSP: 002b:00007ffe54e44938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.795771][ T7048] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440349 [ 56.803718][ T7048] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003 [ 56.811715][ T7048] RBP: 00000000006ca018 R08: 0000000000000014 R09: 00000000004002c8 [ 56.819668][ T7048] R10: 0000000000000041 R11: 0000000000000246 R12: 0000000000401bd0 [ 56.827627][ T7048] R13: 0000000000401c60 R14: 0000000000000000 R15: 0000000000000000 [ 56.835587][ T7048] Modules linked in: [ 56.840390][ T7048] ---[ end trace b496bb5197491ecb ]--- [ 56.845928][ T7048] RIP: 0010:rds_ib_add_one+0xbb/0xc90 [ 56.851420][ T7048] 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 [ 56.871467][ T7048] RSP: 0018:ffffc90001826fe0 EFLAGS: 00010206 [ 56.877575][ T7048] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87501fca [ 56.885592][ T7048] RDX: 000000000000008e RSI: ffffffff87501fe8 RDI: 0000000000000470 [ 56.893616][ T7048] RBP: 0000000000000001 R08: ffff8880a84a8600 R09: ffffed1012a0f89f [ 56.901871][ T7048] R10: ffff88809507c4f7 R11: ffffed1012a0f89e R12: ffff88809507c000 [ 56.909829][ T7048] R13: ffffffff8a744f40 R14: 1ffff92000304e07 R15: ffff88809507c4e8 [ 56.917846][ T7048] FS: 000000000233f880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 56.926869][ T7048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.933471][ T7048] CR2: 00007fe882938ab4 CR3: 000000009611f000 CR4: 00000000001406f0 [ 56.941479][ T7048] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.949608][ T7048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.957618][ T7048] Kernel panic - not syncing: Fatal exception [ 56.964986][ T7048] Kernel Offset: disabled [ 56.969297][ T7048] Rebooting in 86400 seconds..