Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. syzkaller login: [ 34.150864] IPVS: ftp: loaded support on port[0] = 21 executing program [ 34.242555] FAULT_INJECTION: forcing a failure. [ 34.242555] name failslab, interval 1, probability 0, space 0, times 1 [ 34.254156] CPU: 1 PID: 8110 Comm: syz-executor868 Not tainted 4.19.211-syzkaller #0 [ 34.262020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.271352] Call Trace: [ 34.273923] dump_stack+0x1fc/0x2ef [ 34.277534] should_fail.cold+0xa/0xf [ 34.281314] ? setup_fault_attr+0x200/0x200 [ 34.285614] ? lock_acquire+0x170/0x3c0 [ 34.289571] __should_failslab+0x115/0x180 [ 34.293787] should_failslab+0x5/0x10 [ 34.297566] kmem_cache_alloc_node_trace+0x244/0x3b0 [ 34.302797] __kmalloc_node_track_caller+0x38/0x70 [ 34.307718] __alloc_skb+0xae/0x560 [ 34.311333] netlink_dump+0x55f/0xc10 [ 34.315123] __netlink_dump_start+0x4e9/0x6f0 [ 34.319599] ? genl_lock_dumpit+0x90/0x90 [ 34.323731] genl_family_rcv_msg+0xa76/0xc40 [ 34.328127] ? genl_rcv+0x40/0x40 [ 34.331559] ? genl_rcv_msg+0x12f/0x160 [ 34.335517] ? genl_lock_dumpit+0x90/0x90 [ 34.339652] ? genl_lock_done+0xc0/0xc0 [ 34.343606] ? genl_unlock+0x20/0x20 [ 34.347301] ? mark_held_locks+0xf0/0xf0 [ 34.351343] ? __radix_tree_lookup+0x216/0x370 [ 34.356023] genl_rcv_msg+0xbf/0x160 [ 34.359738] netlink_rcv_skb+0x160/0x440 [ 34.363792] ? genl_family_rcv_msg+0xc40/0xc40 [ 34.368356] ? netlink_ack+0xae0/0xae0 [ 34.372222] ? genl_rcv+0x15/0x40 [ 34.375658] genl_rcv+0x24/0x40 [ 34.378914] netlink_unicast+0x4d5/0x690 [ 34.382955] ? netlink_sendskb+0x110/0x110 [ 34.387168] ? _copy_from_iter_full+0x229/0x7c0 [ 34.391815] ? __phys_addr_symbol+0x2c/0x70 [ 34.396120] ? __check_object_size+0x17b/0x3e0 [ 34.400772] netlink_sendmsg+0x6c3/0xc50 [ 34.404834] ? aa_af_perm+0x230/0x230 [ 34.408634] ? nlmsg_notify+0x1f0/0x1f0 [ 34.412595] ? kernel_recvmsg+0x220/0x220 [ 34.416726] ? nlmsg_notify+0x1f0/0x1f0 [ 34.420682] sock_sendmsg+0xc3/0x120 [ 34.424375] ___sys_sendmsg+0x7bb/0x8e0 [ 34.428332] ? check_preemption_disabled+0x41/0x280 [ 34.433324] ? copy_msghdr_from_user+0x440/0x440 [ 34.438061] ? proc_fail_nth_write+0x95/0x1d0 [ 34.442538] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.447446] ? debug_check_no_obj_freed+0x201/0x490 [ 34.452444] ? __vfs_write+0xff/0x770 [ 34.456225] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.461133] ? common_file_perm+0x4e5/0x850 [ 34.465436] ? kernel_read+0x110/0x110 [ 34.469312] ? trace_hardirqs_off+0x64/0x200 [ 34.473697] ? fsnotify+0x84e/0xe10 [ 34.477301] ? vfs_write+0x3d7/0x540 [ 34.480995] ? __fdget+0x1a0/0x230 [ 34.484538] __x64_sys_sendmsg+0x132/0x220 [ 34.488750] ? __sys_sendmsg+0x1b0/0x1b0 [ 34.492788] ? vfs_write+0x393/0x540 [ 34.496484] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.501828] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.506822] ? do_syscall_64+0x21/0x620 [ 34.510774] do_syscall_64+0xf9/0x620 [ 34.514559] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.519728] RIP: 0033:0x7fec2cf97789 [ 34.523423] Code: 28 c3 e8 da 15 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 34.542304] RSP: 002b:00007fff2cef2018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.549999] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fec2cf97789 [ 34.557252] RDX: 0000000000000000 RSI: 000000002000b580 RDI: 0000000000000004 [ 34.564505] RBP: 00007fff2cef2060 R08: 0000000000000001 R09: 00007fff2cef2090 [ 34.571763] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 34.579015] R13: 00005555557d52b8 R14: 0000000000000013 R15: 00007fff2cef2058 [ 34.615840] kasan: CONFIG_KASAN_INLINE enabled [ 34.621161] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.631808] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.638043] CPU: 1 PID: 4384 Comm: kworker/1:2 Not tainted 4.19.211-syzkaller #0 [ 34.645554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.654892] Workqueue: events netlink_sock_destruct_work [ 34.660337] RIP: 0010:klist_iter_exit+0x21/0x80 [ 34.664986] Code: 66 0f 1f 84 00 00 00 00 00 41 54 55 53 48 89 fb e8 34 69 74 f9 48 8d 6b 08 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 <80> 3c 02 00 75 40 4c 8b 63 08 4d 85 e4 74 2e e8 0b 69 74 f9 31 f6 [ 34.683864] RSP: 0000:ffff8880a5317c48 EFLAGS: 00010202 [ 34.689205] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 34.696450] RDX: 0000000000000001 RSI: ffffffff87ee1c3c RDI: 0000000000000000 [ 34.703693] RBP: 0000000000000008 R08: 0000000000000000 R09: fffffbfff15cf8ac [ 34.710937] R10: ffffffff8ae7c567 R11: 0000000000074071 R12: 0000000000000000 [ 34.718183] R13: ffffffff896f11a0 R14: ffff8880ba12a8c0 R15: ffff8880ba12f000 [ 34.725503] FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 34.733707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.739563] CR2: 00007efc89a23000 CR3: 00000000b4ebd000 CR4: 00000000003406e0 [ 34.746813] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.754060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.761305] Call Trace: [ 34.763874] nfc_genl_dump_devices_done+0x31/0x50 [ 34.768692] genl_lock_done+0x82/0xc0 [ 34.772466] ? genl_unlock+0x20/0x20 [ 34.776154] netlink_sock_destruct+0x96/0x280 [ 34.780628] ? __netlink_create+0x270/0x270 [ 34.784928] __sk_destruct+0x4b/0x8a0 [ 34.788705] __sk_free+0x165/0x3b0 [ 34.792219] sk_free+0x3b/0x50 [ 34.795387] process_one_work+0x864/0x1570 [ 34.799598] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 34.804247] worker_thread+0x64c/0x1130 [ 34.808204] ? __kthread_parkme+0x133/0x1e0 [ 34.812502] ? process_one_work+0x1570/0x1570 [ 34.816971] kthread+0x33f/0x460 [ 34.820314] ? kthread_park+0x180/0x180 [ 34.824268] ret_from_fork+0x24/0x30 [ 34.827956] Modules linked in: [ 34.831852] ---[ end trace 4bbb0f042581d75d ]--- [ 34.837540] RIP: 0010:klist_iter_exit+0x21/0x80 [ 34.842220] Code: 66 0f 1f 84 00 00 00 00 00 41 54 55 53 48 89 fb e8 34 69 74 f9 48 8d 6b 08 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 <80> 3c 02 00 75 40 4c 8b 63 08 4d 85 e4 74 2e e8 0b 69 74 f9 31 f6 [ 34.861858] RSP: 0000:ffff8880a5317c48 EFLAGS: 00010202