Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts.
executing program
executing program
BUG: memory leak
unreferenced object 0xffff888101c6e0c0 (size 168):
  comm "kworker/u4:1", pid 24, jiffies 4294942873 (age 14.420s)
  hex dump (first 32 bytes):
    02 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:
    [<00000000341663a6>] prepare_creds+0x27/0x410 kernel/cred.c:258
    [<000000003e546eae>] copy_creds+0x3a/0x230 kernel/cred.c:358
    [<00000000810908ad>] copy_process+0x6a3/0x25c0 kernel/fork.c:1973
    [<000000006c514c21>] kernel_clone+0xf3/0x670 kernel/fork.c:2462
    [<0000000031cda4df>] kernel_thread+0x61/0x80 kernel/fork.c:2514
    [<00000000149392e8>] call_usermodehelper_exec_work kernel/umh.c:172 [inline]
    [<00000000149392e8>] call_usermodehelper_exec_work+0xc4/0x120 kernel/umh.c:158
    [<000000007665b532>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
    [<000000004461ae5d>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
    [<00000000d559c5c4>] kthread+0x178/0x1b0 kernel/kthread.c:292
    [<00000000e301f39f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

BUG: memory leak
unreferenced object 0xffff88811116e800 (size 32):
  comm "kworker/u4:1", pid 24, jiffies 4294942873 (age 14.420s)
  hex dump (first 32 bytes):
    b0 8e 93 00 81 88 ff ff 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:
    [<0000000085e5fcb6>] lsm_cred_alloc security/security.c:534 [inline]
    [<0000000085e5fcb6>] security_prepare_creds+0x9f/0xc0 security/security.c:1633
    [<00000000b81d73fc>] prepare_creds+0x2c7/0x410 kernel/cred.c:285
    [<000000003e546eae>] copy_creds+0x3a/0x230 kernel/cred.c:358
    [<00000000810908ad>] copy_process+0x6a3/0x25c0 kernel/fork.c:1973
    [<000000006c514c21>] kernel_clone+0xf3/0x670 kernel/fork.c:2462
    [<0000000031cda4df>] kernel_thread+0x61/0x80 kernel/fork.c:2514
    [<00000000149392e8>] call_usermodehelper_exec_work kernel/umh.c:172 [inline]
    [<00000000149392e8>] call_usermodehelper_exec_work+0xc4/0x120 kernel/umh.c:158
    [<000000007665b532>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
    [<000000004461ae5d>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
    [<00000000d559c5c4>] kthread+0x178/0x1b0 kernel/kthread.c:292
    [<00000000e301f39f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

BUG: memory leak
unreferenced object 0xffff888101845600 (size 232):
  comm "kworker/u4:1", pid 8438, jiffies 4294942873 (age 14.420s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    60 4a 04 01 81 88 ff ff 40 bb ba 0f 81 88 ff ff  `J......@.......
  backtrace:
    [<00000000d767c548>] kmem_cache_zalloc include/linux/slab.h:672 [inline]
    [<00000000d767c548>] __alloc_file+0x1f/0xf0 fs/file_table.c:101
    [<00000000f6c394e5>] alloc_empty_file+0x69/0x120 fs/file_table.c:150
    [<0000000083084126>] alloc_file+0x33/0x1b0 fs/file_table.c:192
    [<0000000039e2ac26>] alloc_file_pseudo+0xb2/0x140 fs/file_table.c:232
    [<000000006d59e380>] create_pipe_files+0x138/0x2e0 fs/pipe.c:911
    [<000000008772486c>] umd_setup+0x33/0x220 kernel/usermode_driver.c:104
    [<0000000050e3330a>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101
    [<00000000e301f39f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

BUG: memory leak
unreferenced object 0xffff8881123ce7e0 (size 24):
  comm "kworker/u4:1", pid 8438, jiffies 4294942873 (age 14.420s)
  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:
    [<00000000a6f8978a>] kmem_cache_zalloc include/linux/slab.h:672 [inline]
    [<00000000a6f8978a>] lsm_file_alloc security/security.c:569 [inline]
    [<00000000a6f8978a>] security_file_alloc+0x2a/0xb0 security/security.c:1457
    [<00000000f90b866b>] __alloc_file+0x5d/0xf0 fs/file_table.c:106
    [<00000000f6c394e5>] alloc_empty_file+0x69/0x120 fs/file_table.c:150
    [<0000000083084126>] alloc_file+0x33/0x1b0 fs/file_table.c:192
    [<0000000039e2ac26>] alloc_file_pseudo+0xb2/0x140 fs/file_table.c:232
    [<000000006d59e380>] create_pipe_files+0x138/0x2e0 fs/pipe.c:911
    [<000000008772486c>] umd_setup+0x33/0x220 kernel/usermode_driver.c:104
    [<0000000050e3330a>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101
    [<00000000e301f39f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

BUG: memory leak
unreferenced object 0xffff88810d301900 (size 232):
  comm "kworker/u4:1", pid 8438, jiffies 4294942873 (age 14.420s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    60 4a 04 01 81 88 ff ff c0 bc ba 0f 81 88 ff ff  `J..............
  backtrace:
    [<00000000d767c548>] kmem_cache_zalloc include/linux/slab.h:672 [inline]
    [<00000000d767c548>] __alloc_file+0x1f/0xf0 fs/file_table.c:101
    [<00000000f6c394e5>] alloc_empty_file+0x69/0x120 fs/file_table.c:150
    [<0000000083084126>] alloc_file+0x33/0x1b0 fs/file_table.c:192
    [<00000000d5a11b5e>] alloc_file_clone+0x22/0x70 fs/file_table.c:244
    [<000000004fd5fecf>] create_pipe_files+0x182/0x2e0 fs/pipe.c:922
    [<00000000159ce6df>] umd_setup+0xad/0x220 kernel/usermode_driver.c:115
    [<0000000050e3330a>] call_usermodehelper_exec_async+0xb4/0x1b0 kernel/umh.c:101
    [<00000000e301f39f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296