Warning: Permanently added '10.128.0.179' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 71.712770][ T9848] ================================================================== [ 71.720862][ T9848] BUG: KASAN: null-ptr-deref in rxrpc_unuse_local+0x23/0x70 [ 71.728117][ T9848] Write of size 4 at addr 0000000000000010 by task syz-executor249/9848 [ 71.736408][ T9848] [ 71.738716][ T9848] CPU: 0 PID: 9848 Comm: syz-executor249 Not tainted 5.3.0-rc3-next-20190809 #63 [ 71.747795][ T9848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.757824][ T9848] Call Trace: [ 71.761093][ T9848] dump_stack+0x172/0x1f0 [ 71.765392][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 71.770300][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 71.775213][ T9848] __kasan_report.cold+0x5/0x36 [ 71.780040][ T9848] ? _raw_read_unlock_irqrestore+0xd1/0xe0 [ 71.785833][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 71.790745][ T9848] kasan_report+0x12/0x17 [ 71.795069][ T9848] check_memory_region+0x134/0x1a0 [ 71.800159][ T9848] __kasan_check_write+0x14/0x20 [ 71.805068][ T9848] rxrpc_unuse_local+0x23/0x70 [ 71.809826][ T9848] rxrpc_release+0x47d/0x840 [ 71.814394][ T9848] __sock_release+0xce/0x280 [ 71.818959][ T9848] sock_close+0x1e/0x30 [ 71.823088][ T9848] __fput+0x2ff/0x890 [ 71.827064][ T9848] ? __sock_release+0x280/0x280 [ 71.831910][ T9848] ____fput+0x16/0x20 [ 71.835880][ T9848] task_work_run+0x145/0x1c0 [ 71.840470][ T9848] do_exit+0x92f/0x2e50 [ 71.844603][ T9848] ? __sanitizer_cov_trace_cmp1+0x11/0x20 [ 71.850309][ T9848] ? mm_update_next_owner+0x640/0x640 [ 71.855656][ T9848] ? fd_install+0x4d/0x60 [ 71.859956][ T9848] ? __sys_socket+0x180/0x220 [ 71.864613][ T9848] ? move_addr_to_kernel+0x80/0x80 [ 71.869699][ T9848] ? __ia32_sys_fallocate+0xf0/0xf0 [ 71.874886][ T9848] do_group_exit+0x135/0x360 [ 71.879450][ T9848] __x64_sys_exit_group+0x44/0x50 [ 71.884451][ T9848] do_syscall_64+0xfa/0x760 [ 71.888932][ T9848] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.894797][ T9848] RIP: 0033:0x43ed68 [ 71.898684][ T9848] Code: Bad RIP value. [ 71.902725][ T9848] RSP: 002b:00007ffc23279e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 71.911109][ T9848] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ed68 [ 71.919058][ T9848] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 71.927005][ T9848] RBP: 00000000004be568 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 71.934947][ T9848] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 71.942904][ T9848] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 71.950853][ T9848] ================================================================== [ 71.959203][ T9848] Kernel panic - not syncing: panic_on_warn set ... [ 71.965892][ T9848] CPU: 0 PID: 9848 Comm: syz-executor249 Tainted: G B 5.3.0-rc3-next-20190809 #63 [ 71.976369][ T9848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.986420][ T9848] Call Trace: [ 71.989690][ T9848] dump_stack+0x172/0x1f0 [ 71.994026][ T9848] panic+0x2dc/0x755 [ 71.997899][ T9848] ? add_taint.cold+0x16/0x16 [ 72.002561][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 72.007483][ T9848] ? preempt_schedule+0x4b/0x60 [ 72.012307][ T9848] ? ___preempt_schedule+0x16/0x20 [ 72.018137][ T9848] ? trace_hardirqs_on+0x5e/0x240 [ 72.023138][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 72.028050][ T9848] end_report+0x47/0x4f [ 72.032180][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 72.037112][ T9848] __kasan_report.cold+0xe/0x36 [ 72.041958][ T9848] ? _raw_read_unlock_irqrestore+0xd1/0xe0 [ 72.047735][ T9848] ? rxrpc_unuse_local+0x23/0x70 [ 72.052645][ T9848] kasan_report+0x12/0x17 [ 72.056948][ T9848] check_memory_region+0x134/0x1a0 [ 72.062034][ T9848] __kasan_check_write+0x14/0x20 [ 72.066943][ T9848] rxrpc_unuse_local+0x23/0x70 [ 72.071682][ T9848] rxrpc_release+0x47d/0x840 [ 72.076265][ T9848] __sock_release+0xce/0x280 [ 72.080842][ T9848] sock_close+0x1e/0x30 [ 72.084986][ T9848] __fput+0x2ff/0x890 [ 72.088999][ T9848] ? __sock_release+0x280/0x280 [ 72.093823][ T9848] ____fput+0x16/0x20 [ 72.097793][ T9848] task_work_run+0x145/0x1c0 [ 72.102359][ T9848] do_exit+0x92f/0x2e50 [ 72.106519][ T9848] ? __sanitizer_cov_trace_cmp1+0x11/0x20 [ 72.112214][ T9848] ? mm_update_next_owner+0x640/0x640 [ 72.117558][ T9848] ? fd_install+0x4d/0x60 [ 72.121878][ T9848] ? __sys_socket+0x180/0x220 [ 72.126541][ T9848] ? move_addr_to_kernel+0x80/0x80 [ 72.131626][ T9848] ? __ia32_sys_fallocate+0xf0/0xf0 [ 72.136801][ T9848] do_group_exit+0x135/0x360 [ 72.141366][ T9848] __x64_sys_exit_group+0x44/0x50 [ 72.146364][ T9848] do_syscall_64+0xfa/0x760 [ 72.150849][ T9848] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.156716][ T9848] RIP: 0033:0x43ed68 [ 72.160589][ T9848] Code: Bad RIP value. [ 72.164646][ T9848] RSP: 002b:00007ffc23279e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 72.173028][ T9848] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ed68 [ 72.180970][ T9848] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 72.190434][ T9848] RBP: 00000000004be568 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 72.198393][ T9848] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 [ 72.206338][ T9848] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000 [ 72.215415][ T9848] Kernel Offset: disabled [ 72.219748][ T9848] Rebooting in 86400 seconds..