Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. executing program executing program BUG: memory leak unreferenced object 0xffff88810ff94d00 (size 232): comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ a0 bb 67 40 81 88 ff ff 00 5f 08 10 81 88 ff ff ..g@....._...... backtrace: [<00000000092b340d>] kmem_cache_zalloc include/linux/slab.h:672 [inline] [<00000000092b340d>] __alloc_file+0x1f/0xf0 fs/file_table.c:101 [<000000009bf4fa17>] alloc_empty_file+0x69/0x120 fs/file_table.c:150 [<000000007c85b3c5>] alloc_file+0x33/0x1b0 fs/file_table.c:192 [<000000002f903ac5>] alloc_file_pseudo+0xb2/0x140 fs/file_table.c:232 [<0000000075feadc1>] create_pipe_files+0x138/0x2e0 fs/pipe.c:911 [<00000000a188c94b>] umd_setup+0x33/0x220 kernel/usermode_driver.c:104 [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101 [<0000000010c7afd4>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888111d4fe40 (size 24): comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s) hex dump (first 24 bytes): 00 00 00 00 00 00 00 00 b0 8e 93 00 81 88 ff ff ................ 00 00 00 00 00 00 00 00 ........ backtrace: [<00000000ea662a0c>] kmem_cache_zalloc include/linux/slab.h:672 [inline] [<00000000ea662a0c>] lsm_file_alloc security/security.c:569 [inline] [<00000000ea662a0c>] security_file_alloc+0x2a/0xb0 security/security.c:1457 [<000000000f53b60d>] __alloc_file+0x5d/0xf0 fs/file_table.c:106 [<000000009bf4fa17>] alloc_empty_file+0x69/0x120 fs/file_table.c:150 [<000000007c85b3c5>] alloc_file+0x33/0x1b0 fs/file_table.c:192 [<000000002f903ac5>] alloc_file_pseudo+0xb2/0x140 fs/file_table.c:232 [<0000000075feadc1>] create_pipe_files+0x138/0x2e0 fs/pipe.c:911 [<00000000a188c94b>] umd_setup+0x33/0x220 kernel/usermode_driver.c:104 [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101 [<0000000010c7afd4>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff88810ee81f00 (size 232): comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ a0 bb 67 40 81 88 ff ff c0 c0 07 10 81 88 ff ff ..g@............ backtrace: [<00000000092b340d>] kmem_cache_zalloc include/linux/slab.h:672 [inline] [<00000000092b340d>] __alloc_file+0x1f/0xf0 fs/file_table.c:101 [<000000009bf4fa17>] alloc_empty_file+0x69/0x120 fs/file_table.c:150 [<000000007c85b3c5>] alloc_file+0x33/0x1b0 fs/file_table.c:192 [<0000000042508054>] alloc_file_clone+0x22/0x70 fs/file_table.c:244 [<000000003c89954a>] create_pipe_files+0x182/0x2e0 fs/pipe.c:922 [<00000000fe43bf8e>] umd_setup+0xad/0x220 kernel/usermode_driver.c:115 [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101 [<0000000010c7afd4>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888111d4fe70 (size 24): comm "kworker/u4:6", pid 8426, jiffies 4294942371 (age 13.610s) hex dump (first 24 bytes): 00 00 00 00 00 00 00 00 b0 8e 93 00 81 88 ff ff ................ 00 00 00 00 00 00 00 00 ........ backtrace: [<00000000ea662a0c>] kmem_cache_zalloc include/linux/slab.h:672 [inline] [<00000000ea662a0c>] lsm_file_alloc security/security.c:569 [inline] [<00000000ea662a0c>] security_file_alloc+0x2a/0xb0 security/security.c:1457 [<000000000f53b60d>] __alloc_file+0x5d/0xf0 fs/file_table.c:106 [<000000009bf4fa17>] alloc_empty_file+0x69/0x120 fs/file_table.c:150 [<000000007c85b3c5>] alloc_file+0x33/0x1b0 fs/file_table.c:192 [<0000000042508054>] alloc_file_clone+0x22/0x70 fs/file_table.c:244 [<000000003c89954a>] create_pipe_files+0x182/0x2e0 fs/pipe.c:922 [<00000000fe43bf8e>] umd_setup+0xad/0x220 kernel/usermode_driver.c:115 [<000000005cd1d0c9>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101 [<0000000010c7afd4>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296