[ 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 '10.128.1.56' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 70.688010][ T8368] kmemleak: 6 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 72.819062][ T8368] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810ffc12a0 (size 608): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 32 bytes): 80 11 04 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ backtrace: [] alloc_inode+0xbe/0x100 [] new_inode_pseudo+0x13/0x70 [] create_pipe_files+0x2b/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff88811209f318 (size 24): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 24 bytes): 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: [] security_inode_alloc+0x2a/0xb0 [] inode_init_always+0x114/0x250 [] alloc_inode+0x44/0x100 [] new_inode_pseudo+0x13/0x70 [] create_pipe_files+0x2b/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff88810e110a80 (size 192): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 90 0a 11 0e 81 88 ff ff 90 0a 11 0e 81 88 ff ff ................ backtrace: [] alloc_pipe_info+0x8f/0x320 [] create_pipe_files+0x4d/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff888110c51800 (size 1024): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 32 bytes): c0 99 38 04 00 ea ff ff 28 00 00 00 00 00 00 00 ..8.....(....... 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 ................ backtrace: [] alloc_pipe_info+0x154/0x320 [] create_pipe_files+0x4d/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff88810ffd5e40 (size 192): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 32 bytes): 00 00 50 40 02 00 00 00 00 00 00 00 00 00 00 00 ..P@............ 00 00 00 00 00 00 00 00 40 5e fd 0f 81 88 ff ff ........@^...... backtrace: [] __d_alloc+0x2a/0x270 [] d_alloc_pseudo+0x19/0x40 [] alloc_file_pseudo+0x5f/0x140 [] create_pipe_files+0x138/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30 BUG: memory leak unreferenced object 0xffff888110c17c00 (size 232): comm "kworker/u4:6", pid 8374, jiffies 4294943260 (age 13.000s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ e0 e7 04 01 81 88 ff ff 40 5e fd 0f 81 88 ff ff ........@^...... backtrace: [] __alloc_file+0x1f/0xf0 [] alloc_empty_file+0x69/0x120 [] alloc_file+0x33/0x1b0 [] alloc_file_clone+0x22/0x70 [] create_pipe_files+0x182/0x2e0 [] umd_setup+0xad/0x220 [] call_usermodehelper_exec_async+0xb4/0x1b0 [] ret_from_fork+0x1f/0x30