INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.4' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 72.193447] ================================================================== [ 72.200871] BUG: KASAN: out-of-bounds in __unwind_start+0x37c/0x3c0 [ 72.207259] Read of size 8 at addr ffff8801d8d2f820 by task syzkaller558107/3833 [ 72.214758] [ 72.216359] CPU: 1 PID: 3833 Comm: syzkaller558107 Not tainted 4.9.95-gee0bcd6 #6 [ 72.223948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.233276] ffff8801d8fdf140 ffffffff81eb0f89 ffffea0007634bc0 ffff8801d8d2f820 executing program executing program [ 72.241267] 0000000000000000 ffff8801d8d2f828 ffff8801d8fdf278 ffff8801d8fdf178 [ 72.249246] ffffffff815653cb ffff8801d8d2f820 0000000000000008 0000000000000000 [ 72.257231] Call Trace: [ 72.259793] [] dump_stack+0xc1/0x128 [ 72.265133] [] print_address_description+0x6c/0x234 [ 72.271774] [] kasan_report.cold.6+0x242/0x2fe [ 72.277975] [] ? __unwind_start+0x37c/0x3c0 [ 72.283928] [] __asan_report_load8_noabort+0x14/0x20 executing program [ 72.290656] [] __unwind_start+0x37c/0x3c0 [ 72.296436] [] ? ptrace_may_access+0x24/0x50 [ 72.302471] [] __save_stack_trace+0x59/0xf0 [ 72.308418] [] save_stack_trace_tsk+0x48/0x70 [ 72.314541] [] proc_pid_stack+0x148/0x220 [ 72.320311] [] ? lock_trace+0xc0/0xc0 [ 72.325736] [] proc_single_show+0xfd/0x170 [ 72.331595] [] seq_read+0x4b6/0x12e0 [ 72.336938] [] ? seq_dentry+0x290/0x290 executing program executing program [ 72.342539] [] ? __fsnotify_update_child_dentry_flags.part.1+0x300/0x300 [ 72.350995] [] ? fsnotify+0x1100/0x1100 [ 72.356592] [] do_loop_readv_writev.part.18+0xd5/0x280 [ 72.363501] [] do_readv_writev+0x565/0x7a0 [ 72.369362] [] ? vfs_write+0x530/0x530 [ 72.374877] [] ? kasan_unpoison_shadow+0x35/0x50 [ 72.381259] [] ? push_pipe+0x3f4/0x780 [ 72.386771] [] ? iov_iter_get_pages_alloc+0x2bb/0xf10 executing program executing program [ 72.393584] [] vfs_readv+0x84/0xc0 [ 72.398751] [] default_file_splice_read+0x44b/0x7e0 [ 72.405388] [] ? do_splice_direct+0x270/0x270 [ 72.411505] [] ? __might_sleep+0x95/0x1a0 [ 72.417274] [] ? futex_wait_queue_me+0x3d1/0x5c0 [ 72.423650] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 72.430809] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 72.437622] [] ? security_file_permission+0x8f/0x1f0 executing program [ 72.444346] [] ? do_splice_direct+0x270/0x270 [ 72.450461] [] do_splice_to+0x10c/0x170 [ 72.456065] [] splice_direct_to_actor+0x23f/0x7e0 [ 72.462528] [] ? pipe_to_sendpage+0x330/0x330 [ 72.468642] [] ? do_splice_to+0x170/0x170 [ 72.474410] [] ? security_file_permission+0x8f/0x1f0 [ 72.481135] [] ? rw_verify_area+0xe5/0x2b0 [ 72.486989] [] do_splice_direct+0x1a3/0x270 executing program executing program [ 72.492930] [] ? splice_direct_to_actor+0x7e0/0x7e0 [ 72.499579] [] ? rw_verify_area+0xe5/0x2b0 [ 72.505440] [] do_sendfile+0x4f0/0xc60 [ 72.510969] [] ? do_compat_pwritev64+0x180/0x180 [ 72.517358] [] ? __might_fault+0x114/0x1d0 [ 72.523219] [] SyS_sendfile64+0xd1/0x160 [ 72.528902] [] ? SyS_sendfile+0x160/0x160 [ 72.534675] [] ? do_syscall_64+0x48/0x490 executing program executing program [ 72.540445] [] ? SyS_sendfile+0x160/0x160 [ 72.546216] [] do_syscall_64+0x1a6/0x490 [ 72.552045] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 72.558942] [ 72.560540] The buggy address belongs to the page: [ 72.565441] page:ffffea0007634bc0 count:0 mapcount:0 mapping: (null) index:0x0 [ 72.573683] flags: 0x8000000000000000() [ 72.577627] page dumped because: kasan: bad access detected [ 72.583305] [ 72.584904] Memory state around the buggy address: executing program [ 72.589813] ffff8801d8d2f700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.597145] ffff8801d8d2f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.604476] >ffff8801d8d2f800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.611807] ^ [ 72.616447] ffff8801d8d2f880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 72.623778] ffff8801d8d2f900: f2 f2 f2 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 [ 72.631108] ================================================================== [ 72.638437] Disabling lock debugging due to kernel taint [ 72.645441] Kernel panic - not syncing: panic_on_warn set ... [ 72.645441] [ 72.652831] CPU: 0 PID: 3833 Comm: syzkaller558107 Tainted: G B 4.9.95-gee0bcd6 #6 [ 72.661635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.670960] ffff8801d8fdf0a0 ffffffff81eb0f89 ffffffff841c45f5 00000000ffffffff [ 72.678970] 0000000000000000 0000000000000000 ffff8801d8fdf278 ffff8801d8fdf160 [ 72.686953] ffffffff8141f945 0000000041b58ab3 ffffffff841b7cf8 ffffffff8141f786 [ 72.694934] Call Trace: [ 72.697499] [] dump_stack+0xc1/0x128 [ 72.702837] [] panic+0x1bf/0x3bc [ 72.707823] [] ? add_taint.cold.6+0x16/0x16 [ 72.713777] [] ? ___preempt_schedule+0x16/0x18 [ 72.719981] [] kasan_end_report+0x47/0x4f [ 72.725750] [] kasan_report.cold.6+0x76/0x2fe [ 72.731866] [] ? __unwind_start+0x37c/0x3c0 [ 72.737817] [] __asan_report_load8_noabort+0x14/0x20 [ 72.744539] [] __unwind_start+0x37c/0x3c0 [ 72.750307] [] ? ptrace_may_access+0x24/0x50 [ 72.756336] [] __save_stack_trace+0x59/0xf0 [ 72.762277] [] save_stack_trace_tsk+0x48/0x70 [ 72.768394] [] proc_pid_stack+0x148/0x220 [ 72.774162] [] ? lock_trace+0xc0/0xc0 [ 72.779597] [] proc_single_show+0xfd/0x170 [ 72.785458] [] seq_read+0x4b6/0x12e0 [ 72.790795] [] ? seq_dentry+0x290/0x290 [ 72.796392] [] ? __fsnotify_update_child_dentry_flags.part.1+0x300/0x300 [ 72.804857] [] ? fsnotify+0x1100/0x1100 [ 72.810455] [] do_loop_readv_writev.part.18+0xd5/0x280 [ 72.817355] [] do_readv_writev+0x565/0x7a0 [ 72.823210] [] ? vfs_write+0x530/0x530 [ 72.828721] [] ? kasan_unpoison_shadow+0x35/0x50 [ 72.835127] [] ? push_pipe+0x3f4/0x780 [ 72.840640] [] ? iov_iter_get_pages_alloc+0x2bb/0xf10 [ 72.847455] [] vfs_readv+0x84/0xc0 [ 72.852616] [] default_file_splice_read+0x44b/0x7e0 [ 72.859253] [] ? do_splice_direct+0x270/0x270 [ 72.865376] [] ? __might_sleep+0x95/0x1a0 [ 72.871142] [] ? futex_wait_queue_me+0x3d1/0x5c0 [ 72.877513] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 72.884674] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 72.891484] [] ? security_file_permission+0x8f/0x1f0 [ 72.898206] [] ? do_splice_direct+0x270/0x270 [ 72.904333] [] do_splice_to+0x10c/0x170 [ 72.909932] [] splice_direct_to_actor+0x23f/0x7e0 [ 72.916393] [] ? pipe_to_sendpage+0x330/0x330 [ 72.922508] [] ? do_splice_to+0x170/0x170 [ 72.928275] [] ? security_file_permission+0x8f/0x1f0 [ 72.934994] [] ? rw_verify_area+0xe5/0x2b0 [ 72.940848] [] do_splice_direct+0x1a3/0x270 [ 72.946787] [] ? splice_direct_to_actor+0x7e0/0x7e0 [ 72.953423] [] ? rw_verify_area+0xe5/0x2b0 [ 72.959295] [] do_sendfile+0x4f0/0xc60 [ 72.964802] [] ? do_compat_pwritev64+0x180/0x180 [ 72.971184] [] ? __might_fault+0x114/0x1d0 [ 72.977136] [] SyS_sendfile64+0xd1/0x160 [ 72.982822] [] ? SyS_sendfile+0x160/0x160 [ 72.988601] [] ? do_syscall_64+0x48/0x490 [ 72.994367] [] ? SyS_sendfile+0x160/0x160 [ 73.000134] [] do_syscall_64+0x1a6/0x490 [ 73.005816] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 73.012772] Dumping ftrace buffer: [ 73.016281] (ftrace buffer empty) [ 73.019960] Kernel Offset: disabled [ 73.023555] Rebooting in 86400 seconds..