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 'ci-android-49-kasan-gce-9,10.128.15.224' (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 syzkaller login: [ 78.094428] ================================================================== [ 78.095536] BUG: KASAN: out-of-bounds in __unwind_start+0x3a7/0x3c0 at addr ffff8801cf5d7aa8 [ 78.096689] Read of size 8 by task syzkaller285268/6878 [ 78.097480] page:ffffea00073d75c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 78.098638] flags: 0x8000000000000000() [ 78.099166] page dumped because: kasan: bad access detected [ 78.099947] CPU: 1 PID: 6878 Comm: syzkaller285268 Not tainted 4.9.66-gb763480 #103 [ 78.101106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.102377] ffff8801cfeff1a0 ffffffff81d90749 ffffed0039ebaf56 0000000000000008 [ 78.103575] 0000000000000000 ffffed0039ebaf56 ffff8801cf5d7aa8 ffff8801cfeff228 [ 78.104707] ffffffff8153a893 ffff8801cfee0000 ffffffff8389f09e ffffffff810d41b7 [ 78.105855] Call Trace: [ 78.106212] [] dump_stack+0xc1/0x128 [ 78.106933] [] kasan_report.part.1+0x4c3/0x500 [ 78.107789] [] ? mutex_lock_killable_nested+0x60e/0x960 [ 78.108713] [] ? __unwind_start+0x3a7/0x3c0 [ 78.109501] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 78.110398] [] __asan_report_load8_noabort+0x29/0x30 [ 78.111344] [] __unwind_start+0x3a7/0x3c0 [ 78.112152] [] ? ptrace_may_access+0x24/0x50 [ 78.113055] [] __save_stack_trace+0x59/0xf0 [ 78.113856] [] save_stack_trace_tsk+0x48/0x70 [ 78.115621] [] proc_pid_stack+0x146/0x230 [ 78.121381] [] ? lock_trace+0xc0/0xc0 [ 78.126809] [] proc_single_show+0xf8/0x170 [ 78.132668] [] seq_read+0x32f/0x1290 [ 78.138001] [] ? seq_escape+0x200/0x200 [ 78.143602] [] ? fsnotify+0x86/0xf30 [ 78.148928] [] ? fsnotify+0xf30/0xf30 [ 78.154344] [] ? avc_policy_seqno+0x9/0x20 [ 78.160198] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 78.167176] [] ? security_file_permission+0x89/0x1e0 [ 78.173893] [] ? seq_escape+0x200/0x200 [ 78.179488] [] ? seq_escape+0x200/0x200 [ 78.185076] [] do_readv_writev+0x520/0x750 [ 78.190925] [] ? vfs_write+0x530/0x530 [ 78.196438] [] ? kasan_unpoison_shadow+0x35/0x50 [ 78.202811] [] ? push_pipe+0x372/0x770 [ 78.208310] [] ? sanity+0x1ff/0x610 [ 78.213550] [] ? iov_iter_get_pages_alloc+0x2c7/0xf10 [ 78.220356] [] ? __unwind_start+0x1e3/0x3c0 [ 78.226294] [] vfs_readv+0x84/0xc0 [ 78.231459] [] default_file_splice_read+0x43f/0x7a0 [ 78.238089] [] ? depot_save_stack+0x122/0x4a0 [ 78.244199] [] ? do_splice_direct+0x270/0x270 [ 78.250307] [] ? save_stack+0x43/0xd0 [ 78.255723] [] ? kasan_kmalloc+0xad/0xe0 [ 78.261401] [] ? __kmalloc+0x11d/0x310 [ 78.266904] [] ? alloc_pipe_info+0x135/0x350 [ 78.272925] [] ? splice_direct_to_actor+0x64a/0x800 [ 78.279558] [] ? do_splice_direct+0x1a7/0x270 [ 78.285669] [] ? do_sendfile+0x54b/0xd30 [ 78.291359] [] ? entry_SYSCALL_64_fastpath+0x23/0xc6 [ 78.298077] [] ? __alloc_pages_slowpath+0x1d90/0x1d90 [ 78.304882] [] ? __fsnotify_parent+0xbc/0x340 [ 78.310992] [] ? fsnotify+0x86/0xf30 [ 78.316322] [] ? fsnotify+0xf30/0xf30 [ 78.321745] [] ? avc_policy_seqno+0x9/0x20 [ 78.327853] [] ? selinux_file_permission+0x82/0x460 [ 78.334484] [] ? security_file_permission+0x89/0x1e0 [ 78.341720] [] ? rw_verify_area+0xe5/0x2b0 [ 78.347570] [] ? do_splice_direct+0x270/0x270 [ 78.353677] [] do_splice_to+0x10a/0x160 [ 78.359274] [] splice_direct_to_actor+0x24d/0x800 [ 78.365737] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 78.372372] [] ? do_splice_to+0x160/0x160 [ 78.378134] [] ? security_file_permission+0x89/0x1e0 [ 78.384858] [] ? rw_verify_area+0xe5/0x2b0 [ 78.390708] [] do_splice_direct+0x1a7/0x270 [ 78.396643] [] ? splice_direct_to_actor+0x800/0x800 [ 78.403275] [] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 78.409819] [] ? __sb_start_write+0x14a/0x310 [ 78.415929] [] do_sendfile+0x54b/0xd30 [ 78.421430] [] ? do_compat_pwritev64+0x100/0x100 [ 78.427808] [] ? __might_fault+0x114/0x1d0 [ 78.433668] [] SyS_sendfile64+0xd1/0x160 [ 78.439352] [] ? SyS_sendfile+0x160/0x160 [ 78.445117] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 78.451924] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 78.458477] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 78.465022] Memory state around the buggy address: [ 78.469917] ffff8801cf5d7980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.477241] ffff8801cf5d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.484563] >ffff8801cf5d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 executing program executing program executing program [ 78.492000] ^ [ 78.496990] ffff8801cf5d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.504313] ffff8801cf5d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 78.511896] ================================================================== [ 78.519304] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 80.055511] ================================================================== [ 80.062899] BUG: KASAN: out-of-bounds in __unwind_start+0x3a7/0x3c0 at addr ffff8801cf5d7aa8 [ 80.071443] Read of size 8 by task syzkaller285268/8379 [ 80.076773] page:ffffea00073d75c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 80.084998] flags: 0x8000000000000000() [ 80.088933] page dumped because: kasan: bad access detected [ 80.094610] CPU: 1 PID: 8379 Comm: syzkaller285268 Tainted: G B 4.9.66-gb763480 #103 [ 80.103582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.112903] ffff8801d69871a0 ffffffff81d90749 ffffed0039ebaf56 0000000000000008 [ 80.120855] 0000000000000000 ffffed0039ebaf56 ffff8801cf5d7aa8 ffff8801d6987228 [ 80.128802] ffffffff8153a893 0000000000000000 0000000000000000 ffffffff810d41b7 [ 80.136752] Call Trace: [ 80.139307] [] dump_stack+0xc1/0x128 [ 80.144640] [] kasan_report.part.1+0x4c3/0x500 [ 80.150840] [] ? __unwind_start+0x3a7/0x3c0 [ 80.156777] [] __asan_report_load8_noabort+0x29/0x30 [ 80.163493] [] __unwind_start+0x3a7/0x3c0 [ 80.169256] [] ? ptrace_may_access+0x24/0x50 [ 80.175279] [] __save_stack_trace+0x59/0xf0 [ 80.181214] [] save_stack_trace_tsk+0x48/0x70 [ 80.187332] [] proc_pid_stack+0x146/0x230 [ 80.193794] [] ? lock_trace+0xc0/0xc0 [ 80.199214] [] proc_single_show+0xf8/0x170 [ 80.205063] [] seq_read+0x32f/0x1290 [ 80.210397] [] ? __check_object_size+0x174/0x3a9 [ 80.216768] [] ? seq_escape+0x200/0x200 [ 80.222356] [] ? fsnotify+0x86/0xf30 [ 80.227684] [] ? fsnotify+0xf30/0xf30 [ 80.233102] [] ? avc_policy_seqno+0x9/0x20 [ 80.238953] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 80.245937] [] ? security_file_permission+0x89/0x1e0 [ 80.252654] [] ? seq_escape+0x200/0x200 [ 80.258241] [] ? seq_escape+0x200/0x200 [ 80.263829] [] do_readv_writev+0x520/0x750 [ 80.269677] [] ? vfs_write+0x530/0x530 [ 80.275181] [] ? kasan_unpoison_shadow+0x35/0x50 [ 80.281555] [] ? push_pipe+0x372/0x770 [ 80.287068] [] ? sanity+0x1ff/0x610 [ 80.292312] [] ? iov_iter_get_pages_alloc+0x2c7/0xf10 [ 80.299117] [] ? __unwind_start+0x1e3/0x3c0 [ 80.305052] [] vfs_readv+0x84/0xc0 [ 80.310214] [] default_file_splice_read+0x43f/0x7a0 [ 80.316847] [] ? depot_save_stack+0x122/0x4a0 [ 80.322956] [] ? do_splice_direct+0x270/0x270 [ 80.329066] [] ? save_stack+0x43/0xd0 [ 80.334480] [] ? kasan_kmalloc+0xad/0xe0 [ 80.340155] [] ? __kmalloc+0x11d/0x310 [ 80.345659] [] ? alloc_pipe_info+0x135/0x350 [ 80.351681] [] ? splice_direct_to_actor+0x64a/0x800 [ 80.358312] [] ? do_splice_direct+0x1a7/0x270 [ 80.364424] [] ? do_sendfile+0x54b/0xd30 [ 80.370103] [] ? entry_SYSCALL_64_fastpath+0x23/0xc6 [ 80.376822] [] ? select_energy_cpu_brute+0x521/0x2200 [ 80.383628] [] ? select_energy_cpu_brute+0xd5/0x2200 [ 80.390354] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 80.397333] [] ? debug_smp_processor_id+0x1c/0x20 [ 80.403791] [] ? __fsnotify_parent+0xbc/0x340 [ 80.409899] [] ? fsnotify+0x86/0xf30 [ 80.415226] [] ? fsnotify+0xf30/0xf30 [ 80.420648] [] ? avc_policy_seqno+0x9/0x20 [ 80.426497] [] ? selinux_file_permission+0x82/0x460 [ 80.433129] [] ? security_file_permission+0x89/0x1e0 [ 80.439846] [] ? rw_verify_area+0xe5/0x2b0 [ 80.445695] [] ? do_splice_direct+0x270/0x270 [ 80.451807] [] do_splice_to+0x10a/0x160 [ 80.457397] [] splice_direct_to_actor+0x24d/0x800 [ 80.463854] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 80.470486] [] ? do_splice_to+0x160/0x160 [ 80.476250] [] ? security_file_permission+0x89/0x1e0 [ 80.482967] [] ? rw_verify_area+0xe5/0x2b0 [ 80.488815] [] do_splice_direct+0x1a7/0x270 [ 80.494752] [] ? splice_direct_to_actor+0x800/0x800 [ 80.501383] [] ? check_preemption_disabled+0x3b/0x200 [ 80.508187] [] ? rcu_sync_lockdep_assert+0xd/0xb0 [ 80.514645] [] ? __sb_start_write+0x14a/0x310 [ 80.520753] [] do_sendfile+0x54b/0xd30 [ 80.526255] [] ? do_compat_pwritev64+0x100/0x100 [ 80.532626] [] ? __might_fault+0xe4/0x1d0 [ 80.538388] [] ? __might_fault+0x114/0x1d0 [ 80.544236] [] SyS_sendfile64+0xd1/0x160 [ 80.549912] [] ? SyS_sendfile+0x160/0x160 [ 80.555674] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 80.562221] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 80.568763] Memory state around the buggy address: [ 80.573658] ffff8801cf5d7980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 80.580981] ffff8801cf5d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 80.588303] >ffff8801cf5d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 80.595626] ^ [ 80.600518] ffff8801cf5d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 executing program executing program executing program executing program executing program [ 80.607849] ffff8801cf5d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 80.615170] ================================================================== executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 83.690595] ================================================================== [ 83.697984] BUG: KASAN: out-of-bounds in __unwind_start+0x3a7/0x3c0 at addr ffff8801cf5d7aa8 [ 83.706527] Read of size 8 by task syzkaller285268/11351 [ 83.711942] page:ffffea00073d75c0 count:0 mapcount:0 mapping: (null) index:0x0 [ 83.720159] flags: 0x8000000000000000() [ 83.724095] page dumped because: kasan: bad access detected [ 83.729773] CPU: 1 PID: 11351 Comm: syzkaller285268 Tainted: G B 4.9.66-gb763480 #103 [ 83.738833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.748155] ffff8801c65171a0 ffffffff81d90749 ffffed0039ebaf56 0000000000000008 [ 83.756105] 0000000000000000 ffffed0039ebaf56 ffff8801cf5d7aa8 ffff8801c6517228 [ 83.764057] ffffffff8153a893 0000000000000000 0000000000000000 ffffffff810d41b7 [ 83.772042] Call Trace: [ 83.774605] [] dump_stack+0xc1/0x128 [ 83.779935] [] kasan_report.part.1+0x4c3/0x500 [ 83.786131] [] ? __unwind_start+0x3a7/0x3c0 [ 83.792067] [] __asan_report_load8_noabort+0x29/0x30 [ 83.798784] [] __unwind_start+0x3a7/0x3c0 [ 83.804546] [] ? ptrace_may_access+0x24/0x50 [ 83.810569] [] __save_stack_trace+0x59/0xf0 [ 83.816506] [] save_stack_trace_tsk+0x48/0x70 [ 83.822618] [] proc_pid_stack+0x146/0x230 [ 83.828382] [] ? lock_trace+0xc0/0xc0 [ 83.833807] [] proc_single_show+0xf8/0x170 [ 83.839657] [] seq_read+0x32f/0x1290 [ 83.844985] [] ? __check_object_size+0x174/0x3a9 [ 83.851355] [] ? seq_escape+0x200/0x200 [ 83.856947] [] ? fsnotify+0x86/0xf30 [ 83.862294] [] ? fsnotify+0xf30/0xf30 [ 83.867719] [] ? avc_policy_seqno+0x9/0x20 [ 83.873568] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 83.880546] [] ? security_file_permission+0x89/0x1e0 [ 83.887282] [] ? seq_escape+0x200/0x200 [ 83.892870] [] ? seq_escape+0x200/0x200 [ 83.898460] [] do_readv_writev+0x520/0x750 [ 83.904311] [] ? vfs_write+0x530/0x530 [ 83.909812] [] ? kasan_unpoison_shadow+0x35/0x50 [ 83.916183] [] ? push_pipe+0x372/0x770 [ 83.921684] [] ? sanity+0x1ff/0x610 [ 83.926925] [] ? iov_iter_get_pages_alloc+0x2c7/0xf10 [ 83.934163] [] ? __unwind_start+0x1e3/0x3c0 [ 83.940098] [] vfs_readv+0x84/0xc0 [ 83.945256] [] default_file_splice_read+0x43f/0x7a0 [ 83.951889] [] ? depot_save_stack+0x122/0x4a0 [ 83.958000] [] ? do_splice_direct+0x270/0x270 [ 83.964108] [] ? save_stack+0x43/0xd0 [ 83.969524] [] ? kasan_kmalloc+0xad/0xe0 [ 83.975198] [] ? __kmalloc+0x11d/0x310 [ 83.980704] [] ? alloc_pipe_info+0x135/0x350 [ 83.986736] [] ? splice_direct_to_actor+0x64a/0x800 [ 83.993367] [] ? do_splice_direct+0x1a7/0x270 [ 83.999476] [] ? do_sendfile+0x54b/0xd30 [ 84.005154] [] ? entry_SYSCALL_64_fastpath+0x23/0xc6 [ 84.011873] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 84.018851] [] ? save_stack_trace+0x16/0x20 [ 84.024791] [] ? debug_smp_processor_id+0x1c/0x20 [ 84.031248] [] ? __fsnotify_parent+0xbc/0x340 [ 84.037356] [] ? fsnotify+0x86/0xf30 [ 84.042683] [] ? fsnotify+0xf30/0xf30 [ 84.048098] [] ? avc_policy_seqno+0x9/0x20 [ 84.053959] [] ? selinux_file_permission+0x82/0x460 [ 84.060590] [] ? security_file_permission+0x89/0x1e0 [ 84.067306] [] ? rw_verify_area+0xe5/0x2b0 [ 84.073330] [] ? do_splice_direct+0x270/0x270 [ 84.079440] [] do_splice_to+0x10a/0x160 [ 84.085032] [] splice_direct_to_actor+0x24d/0x800 [ 84.091491] [] ? generic_pipe_buf_nosteal+0x10/0x10 [ 84.098120] [] ? do_splice_to+0x160/0x160 [ 84.103882] [] ? security_file_permission+0x89/0x1e0 [ 84.110606] [] ? rw_verify_area+0xe5/0x2b0 [ 84.116455] [] do_splice_direct+0x1a7/0x270 [ 84.122394] [] ? splice_direct_to_actor+0x800/0x800 [ 84.129029] [] ? check_preemption_disabled+0x3b/0x200 [ 84.135834] [] ? rcu_sync_lockdep_assert+0xd/0xb0 [ 84.142292] [] ? __sb_start_write+0x14a/0x310 [ 84.148403] [] do_sendfile+0x54b/0xd30 [ 84.153904] [] ? do_compat_pwritev64+0x100/0x100 [ 84.160275] [] ? __might_fault+0xe4/0x1d0 [ 84.166037] [] ? __might_fault+0x114/0x1d0 [ 84.171887] [] SyS_sendfile64+0xd1/0x160 [ 84.177563] [] ? SyS_sendfile+0x160/0x160 [ 84.183329] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 84.189875] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 84.196994] Memory state around the buggy address: [ 84.201891] ffff8801cf5d7980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 84.209215] ffff8801cf5d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 84.216539] >ffff8801cf5d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 84.223863] ^ [ 84.228758] ffff8801cf5d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 executing program executing program executing program executing program [ 84.236081] ffff8801cf5d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 84.243402] ================================================================== executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program