[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.49' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory syzkaller login: [ 309.734385][ T8444] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 19.980s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 20.030s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 21.960s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 22.020s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 22.070s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff8881011cf900 (size 120): comm "kworker/u4:3", pid 210, jiffies 4294967629 (age 23.070s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000299728a4>] alloc_pid+0x66/0x560 [<00000000794a1abb>] copy_process+0x143b/0x25c0 [<00000000a7f9127b>] kernel_clone+0xf3/0x670 [<000000006bc36879>] kernel_thread+0x61/0x80 [<000000008f670f46>] call_usermodehelper_exec_work+0xc4/0x120 [<0000000049ba13fd>] process_one_work+0x2c9/0x600 [<00000000674611e5>] worker_thread+0x59/0x5d0 [<00000000c0a5ac2d>] kthread+0x178/0x1b0 [<00000000f7b9c053>] ret_from_fork+0x1f/0x30 write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory