Warning: Permanently added '10.128.15.197' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 114.671547][ T8455] list_del corruption. prev->next should be ffff888147a5bc68, but was ffff888021d39840 [ 114.682306][ T8455] ------------[ cut here ]------------ [ 114.687782][ T8455] kernel BUG at lib/list_debug.c:51! [ 114.693929][ T8455] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 114.700012][ T8455] CPU: 1 PID: 8455 Comm: syz-executor871 Not tainted 5.12.0-next-20210507-syzkaller #0 [ 114.709653][ T8455] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.719750][ T8455] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4a [ 114.726264][ T8455] Code: e8 26 a3 f2 ff 0f 0b 48 89 f1 48 c7 c7 c0 f6 c2 89 4c 89 e6 e8 12 a3 f2 ff 0f 0b 48 89 ee 48 c7 c7 60 f8 c2 89 e8 01 a3 f2 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 f7 c2 89 e8 ed a2 f2 ff 0f 0b [ 114.746122][ T8455] RSP: 0000:ffffc90000ebf928 EFLAGS: 00010282 [ 114.752192][ T8455] RAX: 0000000000000054 RBX: 0000000000000001 RCX: 0000000000000000 [ 114.760195][ T8455] RDX: ffff888027830000 RSI: ffffffff815ccd25 RDI: fffff520001d7f17 [ 114.768193][ T8455] RBP: ffff888147a5bc68 R08: 0000000000000054 R09: 0000000000000000 [ 114.776186][ T8455] R10: ffffffff815c6b8e R11: 0000000000000000 R12: ffff8881409cdc68 [ 114.784157][ T8455] R13: ffff8881409cdc68 R14: ffff888147a5bc60 R15: 0000000000000000 [ 114.792171][ T8455] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 114.801107][ T8455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.807703][ T8455] CR2: 00007f0f9b39b030 CR3: 0000000018e92000 CR4: 00000000001506e0 [ 114.815679][ T8455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.823668][ T8455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.831657][ T8455] Call Trace: [ 114.834953][ T8455] klist_release+0x66/0x480 [ 114.839467][ T8455] ? __device_link_free_srcu+0x120/0x120 [ 114.845115][ T8455] klist_put+0xf7/0x1d0 [ 114.849296][ T8455] device_del+0x245/0xd40 [ 114.853638][ T8455] ? klist_iter_exit+0xc/0x80 [ 114.858323][ T8455] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 114.864663][ T8455] hci_conn_del_sysfs+0xdc/0x180 [ 114.869605][ T8455] hci_conn_cleanup+0x2e7/0x6c0 [ 114.874573][ T8455] hci_conn_del+0x2a0/0x790 [ 114.879084][ T8455] hci_conn_hash_flush+0x19c/0x260 [ 114.884310][ T8455] hci_dev_do_close+0x569/0x1110 [ 114.889265][ T8455] ? hci_dev_open+0x300/0x300 [ 114.893950][ T8455] ? do_raw_read_unlock+0x70/0x70 [ 114.898987][ T8455] hci_unregister_dev+0x263/0x1130 [ 114.904141][ T8455] ? fsnotify+0x1070/0x1070 [ 114.908645][ T8455] ? hci_bdaddr_list_clear+0x200/0x200 [ 114.914284][ T8455] ? fcntl_setlk+0xe90/0xe90 [ 114.918888][ T8455] vhci_release+0x70/0xe0 [ 114.923390][ T8455] __fput+0x288/0x920 [ 114.927386][ T8455] ? vhci_close_dev+0x50/0x50 [ 114.932061][ T8455] task_work_run+0xdd/0x1a0 [ 114.936564][ T8455] do_exit+0xbfc/0x2a60 [ 114.940720][ T8455] ? mm_update_next_owner+0x7a0/0x7a0 [ 114.946099][ T8455] ? lock_downgrade+0x6e0/0x6e0 [ 114.950946][ T8455] ? lock_downgrade+0x6e0/0x6e0 [ 114.955797][ T8455] do_group_exit+0x125/0x310 [ 114.960396][ T8455] __x64_sys_exit_group+0x3a/0x50 [ 114.965423][ T8455] do_syscall_64+0x3a/0xb0 [ 114.969852][ T8455] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 114.975756][ T8455] RIP: 0033:0x444739 [ 114.979644][ T8455] Code: Unable to access opcode bytes at RIP 0x44470f. [ 114.986476][ T8455] RSP: 002b:00007ffee45719d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 114.994885][ T8455] RAX: ffffffffffffffda RBX: 00000000004cb370 RCX: 0000000000444739 [ 115.002852][ T8455] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 115.010840][ T8455] RBP: 0000000000000001 R08: ffffffffffffffbc R09: 000000ffe4571ad0 [ 115.018808][ T8455] R10: 00007ffee45714a0 R11: 0000000000000246 R12: 00000000004cb370 [ 115.026776][ T8455] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 115.034751][ T8455] Modules linked in: [ 115.038731][ T8455] ---[ end trace 4825748abd92c1fc ]--- [ 115.044253][ T8455] RIP: 0010:__list_del_entry_valid.cold+0xf/0x4a [ 115.050667][ T8455] Code: e8 26 a3 f2 ff 0f 0b 48 89 f1 48 c7 c7 c0 f6 c2 89 4c 89 e6 e8 12 a3 f2 ff 0f 0b 48 89 ee 48 c7 c7 60 f8 c2 89 e8 01 a3 f2 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 f7 c2 89 e8 ed a2 f2 ff 0f 0b [ 115.070385][ T8455] RSP: 0000:ffffc90000ebf928 EFLAGS: 00010282 [ 115.076497][ T8455] RAX: 0000000000000054 RBX: 0000000000000001 RCX: 0000000000000000 [ 115.084589][ T8455] RDX: ffff888027830000 RSI: ffffffff815ccd25 RDI: fffff520001d7f17 [ 115.092724][ T8455] RBP: ffff888147a5bc68 R08: 0000000000000054 R09: 0000000000000000 [ 115.100762][ T8455] R10: ffffffff815c6b8e R11: 0000000000000000 R12: ffff8881409cdc68 [ 115.108759][ T8455] R13: ffff8881409cdc68 R14: ffff888147a5bc60 R15: 0000000000000000 [ 115.116802][ T8455] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 115.125831][ T8455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 115.132499][ T8455] CR2: 00007f0f9b39b030 CR3: 0000000018e92000 CR4: 00000000001506e0 [ 115.141273][ T8455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 115.149456][ T8455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 115.157451][ T8455] Kernel panic - not syncing: Fatal exception [ 115.164323][ T8455] Kernel Offset: disabled [ 115.168653][ T8455] Rebooting in 86400 seconds..