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BUG: memory leak
unreferenced object 0xffff88810501da80 (size 176):
  comm "syz-executor296", pid 5104, jiffies 4294960957 (age 19.080s)
  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:
    [<ffffffff812a54a7>] prepare_creds+0x27/0x470 kernel/cred.c:260
    [<ffffffff81c16c7d>] ovl_fill_super+0xad/0x2760 fs/overlayfs/super.c:1917
    [<ffffffff8160f59c>] mount_nodev+0x5c/0xc0 fs/super.c:1405
    [<ffffffff81673a1b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff8160d088>] vfs_get_tree+0x28/0x100 fs/super.c:1489
    [<ffffffff81650f27>] do_new_mount fs/namespace.c:3145 [inline]
    [<ffffffff81650f27>] path_mount+0xc37/0x10d0 fs/namespace.c:3475
    [<ffffffff81651b5e>] do_mount fs/namespace.c:3488 [inline]
    [<ffffffff81651b5e>] __do_sys_mount fs/namespace.c:3697 [inline]
    [<ffffffff81651b5e>] __se_sys_mount fs/namespace.c:3674 [inline]
    [<ffffffff81651b5e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3674
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810ac9b820 (size 32):
  comm "syz-executor296", pid 5104, jiffies 4294960957 (age 19.080s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 a8 f1 e1 00 81 88 ff ff  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814f9f46>] __do_kmalloc_node mm/slab_common.c:967 [inline]
    [<ffffffff814f9f46>] __kmalloc+0x46/0x120 mm/slab_common.c:981
    [<ffffffff8222e6a5>] kmalloc include/linux/slab.h:584 [inline]
    [<ffffffff8222e6a5>] kzalloc include/linux/slab.h:720 [inline]
    [<ffffffff8222e6a5>] lsm_cred_alloc security/security.c:568 [inline]
    [<ffffffff8222e6a5>] security_prepare_creds+0xa5/0xd0 security/security.c:1780
    [<ffffffff812a5766>] prepare_creds+0x2e6/0x470 kernel/cred.c:291
    [<ffffffff81c16c7d>] ovl_fill_super+0xad/0x2760 fs/overlayfs/super.c:1917
    [<ffffffff8160f59c>] mount_nodev+0x5c/0xc0 fs/super.c:1405
    [<ffffffff81673a1b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff8160d088>] vfs_get_tree+0x28/0x100 fs/super.c:1489
    [<ffffffff81650f27>] do_new_mount fs/namespace.c:3145 [inline]
    [<ffffffff81650f27>] path_mount+0xc37/0x10d0 fs/namespace.c:3475
    [<ffffffff81651b5e>] do_mount fs/namespace.c:3488 [inline]
    [<ffffffff81651b5e>] __do_sys_mount fs/namespace.c:3697 [inline]
    [<ffffffff81651b5e>] __se_sys_mount fs/namespace.c:3674 [inline]
    [<ffffffff81651b5e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3674
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff8881050e6200 (size 256):
  comm "syz-executor296", pid 5100, jiffies 4294960958 (age 19.070s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a0 24 46 0a 81 88 ff ff 00 c6 99 0e 81 88 ff ff  .$F.............
  backtrace:
    [<ffffffff8160bdef>] kmem_cache_zalloc include/linux/slab.h:710 [inline]
    [<ffffffff8160bdef>] __alloc_file+0x1f/0xf0 fs/file_table.c:138
    [<ffffffff8160c9f9>] alloc_empty_file_noaccount+0x19/0x50 fs/file_table.c:209
    [<ffffffff81620436>] vfs_tmpfile_open+0x26/0x90 fs/namei.c:3645
    [<ffffffff81c2d663>] ovl_do_tmpfile fs/overlayfs/overlayfs.h:331 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:785 [inline]
    [<ffffffff81c2d663>] ovl_do_copy_up fs/overlayfs/copy_up.c:877 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_one+0xeb3/0x1710 fs/overlayfs/copy_up.c:1045
    [<ffffffff81c2dfc7>] ovl_copy_up_flags+0x107/0x170 fs/overlayfs/copy_up.c:1091
    [<ffffffff81c1fe8b>] ovl_setattr+0xdb/0x270 fs/overlayfs/inode.c:47
    [<ffffffff8164303f>] notify_change+0x7cf/0xb20 fs/attr.c:482
    [<ffffffff8160156a>] do_truncate+0xca/0x130 fs/open.c:65
    [<ffffffff816017dd>] vfs_truncate+0x20d/0x240 fs/open.c:111
    [<ffffffff816018d8>] do_sys_truncate.part.0+0xc8/0xe0 fs/open.c:134
    [<ffffffff81601973>] do_sys_truncate fs/open.c:128 [inline]
    [<ffffffff81601973>] __do_sys_truncate fs/open.c:146 [inline]
    [<ffffffff81601973>] __se_sys_truncate fs/open.c:144 [inline]
    [<ffffffff81601973>] __x64_sys_truncate+0x33/0x50 fs/open.c:144
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810df007e0 (size 32):
  comm "syz-executor296", pid 5100, jiffies 4294960958 (age 19.070s)
  hex dump (first 32 bytes):
    ff 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a8 f1 e1 00 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8222de6a>] kmem_cache_zalloc include/linux/slab.h:710 [inline]
    [<ffffffff8222de6a>] lsm_file_alloc security/security.c:603 [inline]
    [<ffffffff8222de6a>] security_file_alloc+0x2a/0xb0 security/security.c:1599
    [<ffffffff8160be2d>] __alloc_file+0x5d/0xf0 fs/file_table.c:143
    [<ffffffff8160c9f9>] alloc_empty_file_noaccount+0x19/0x50 fs/file_table.c:209
    [<ffffffff81620436>] vfs_tmpfile_open+0x26/0x90 fs/namei.c:3645
    [<ffffffff81c2d663>] ovl_do_tmpfile fs/overlayfs/overlayfs.h:331 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:785 [inline]
    [<ffffffff81c2d663>] ovl_do_copy_up fs/overlayfs/copy_up.c:877 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_one+0xeb3/0x1710 fs/overlayfs/copy_up.c:1045
    [<ffffffff81c2dfc7>] ovl_copy_up_flags+0x107/0x170 fs/overlayfs/copy_up.c:1091
    [<ffffffff81c1fe8b>] ovl_setattr+0xdb/0x270 fs/overlayfs/inode.c:47
    [<ffffffff8164303f>] notify_change+0x7cf/0xb20 fs/attr.c:482
    [<ffffffff8160156a>] do_truncate+0xca/0x130 fs/open.c:65
    [<ffffffff816017dd>] vfs_truncate+0x20d/0x240 fs/open.c:111
    [<ffffffff816018d8>] do_sys_truncate.part.0+0xc8/0xe0 fs/open.c:134
    [<ffffffff81601973>] do_sys_truncate fs/open.c:128 [inline]
    [<ffffffff81601973>] __do_sys_truncate fs/open.c:146 [inline]
    [<ffffffff81601973>] __se_sys_truncate fs/open.c:144 [inline]
    [<ffffffff81601973>] __x64_sys_truncate+0x33/0x50 fs/open.c:144
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810501da80 (size 176):
  comm "syz-executor296", pid 5104, jiffies 4294960957 (age 22.410s)
  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:
    [<ffffffff812a54a7>] prepare_creds+0x27/0x470 kernel/cred.c:260
    [<ffffffff81c16c7d>] ovl_fill_super+0xad/0x2760 fs/overlayfs/super.c:1917
    [<ffffffff8160f59c>] mount_nodev+0x5c/0xc0 fs/super.c:1405
    [<ffffffff81673a1b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff8160d088>] vfs_get_tree+0x28/0x100 fs/super.c:1489
    [<ffffffff81650f27>] do_new_mount fs/namespace.c:3145 [inline]
    [<ffffffff81650f27>] path_mount+0xc37/0x10d0 fs/namespace.c:3475
    [<ffffffff81651b5e>] do_mount fs/namespace.c:3488 [inline]
    [<ffffffff81651b5e>] __do_sys_mount fs/namespace.c:3697 [inline]
    [<ffffffff81651b5e>] __se_sys_mount fs/namespace.c:3674 [inline]
    [<ffffffff81651b5e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3674
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810ac9b820 (size 32):
  comm "syz-executor296", pid 5104, jiffies 4294960957 (age 22.410s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 a8 f1 e1 00 81 88 ff ff  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814f9f46>] __do_kmalloc_node mm/slab_common.c:967 [inline]
    [<ffffffff814f9f46>] __kmalloc+0x46/0x120 mm/slab_common.c:981
    [<ffffffff8222e6a5>] kmalloc include/linux/slab.h:584 [inline]
    [<ffffffff8222e6a5>] kzalloc include/linux/slab.h:720 [inline]
    [<ffffffff8222e6a5>] lsm_cred_alloc security/security.c:568 [inline]
    [<ffffffff8222e6a5>] security_prepare_creds+0xa5/0xd0 security/security.c:1780
    [<ffffffff812a5766>] prepare_creds+0x2e6/0x470 kernel/cred.c:291
    [<ffffffff81c16c7d>] ovl_fill_super+0xad/0x2760 fs/overlayfs/super.c:1917
    [<ffffffff8160f59c>] mount_nodev+0x5c/0xc0 fs/super.c:1405
    [<ffffffff81673a1b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff8160d088>] vfs_get_tree+0x28/0x100 fs/super.c:1489
    [<ffffffff81650f27>] do_new_mount fs/namespace.c:3145 [inline]
    [<ffffffff81650f27>] path_mount+0xc37/0x10d0 fs/namespace.c:3475
    [<ffffffff81651b5e>] do_mount fs/namespace.c:3488 [inline]
    [<ffffffff81651b5e>] __do_sys_mount fs/namespace.c:3697 [inline]
    [<ffffffff81651b5e>] __se_sys_mount fs/namespace.c:3674 [inline]
    [<ffffffff81651b5e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3674
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff8881050e6200 (size 256):
  comm "syz-executor296", pid 5100, jiffies 4294960958 (age 22.400s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a0 24 46 0a 81 88 ff ff 00 c6 99 0e 81 88 ff ff  .$F.............
  backtrace:
    [<ffffffff8160bdef>] kmem_cache_zalloc include/linux/slab.h:710 [inline]
    [<ffffffff8160bdef>] __alloc_file+0x1f/0xf0 fs/file_table.c:138
    [<ffffffff8160c9f9>] alloc_empty_file_noaccount+0x19/0x50 fs/file_table.c:209
    [<ffffffff81620436>] vfs_tmpfile_open+0x26/0x90 fs/namei.c:3645
    [<ffffffff81c2d663>] ovl_do_tmpfile fs/overlayfs/overlayfs.h:331 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:785 [inline]
    [<ffffffff81c2d663>] ovl_do_copy_up fs/overlayfs/copy_up.c:877 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_one+0xeb3/0x1710 fs/overlayfs/copy_up.c:1045
    [<ffffffff81c2dfc7>] ovl_copy_up_flags+0x107/0x170 fs/overlayfs/copy_up.c:1091
    [<ffffffff81c1fe8b>] ovl_setattr+0xdb/0x270 fs/overlayfs/inode.c:47
    [<ffffffff8164303f>] notify_change+0x7cf/0xb20 fs/attr.c:482
    [<ffffffff8160156a>] do_truncate+0xca/0x130 fs/open.c:65
    [<ffffffff816017dd>] vfs_truncate+0x20d/0x240 fs/open.c:111
    [<ffffffff816018d8>] do_sys_truncate.part.0+0xc8/0xe0 fs/open.c:134
    [<ffffffff81601973>] do_sys_truncate fs/open.c:128 [inline]
    [<ffffffff81601973>] __do_sys_truncate fs/open.c:146 [inline]
    [<ffffffff81601973>] __se_sys_truncate fs/open.c:144 [inline]
    [<ffffffff81601973>] __x64_sys_truncate+0x33/0x50 fs/open.c:144
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810df007e0 (size 32):
  comm "syz-executor296", pid 5100, jiffies 4294960958 (age 22.400s)
  hex dump (first 32 bytes):
    ff 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    a8 f1 e1 00 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8222de6a>] kmem_cache_zalloc include/linux/slab.h:710 [inline]
    [<ffffffff8222de6a>] lsm_file_alloc security/security.c:603 [inline]
    [<ffffffff8222de6a>] security_file_alloc+0x2a/0xb0 security/security.c:1599
    [<ffffffff8160be2d>] __alloc_file+0x5d/0xf0 fs/file_table.c:143
    [<ffffffff8160c9f9>] alloc_empty_file_noaccount+0x19/0x50 fs/file_table.c:209
    [<ffffffff81620436>] vfs_tmpfile_open+0x26/0x90 fs/namei.c:3645
    [<ffffffff81c2d663>] ovl_do_tmpfile fs/overlayfs/overlayfs.h:331 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:785 [inline]
    [<ffffffff81c2d663>] ovl_do_copy_up fs/overlayfs/copy_up.c:877 [inline]
    [<ffffffff81c2d663>] ovl_copy_up_one+0xeb3/0x1710 fs/overlayfs/copy_up.c:1045
    [<ffffffff81c2dfc7>] ovl_copy_up_flags+0x107/0x170 fs/overlayfs/copy_up.c:1091
    [<ffffffff81c1fe8b>] ovl_setattr+0xdb/0x270 fs/overlayfs/inode.c:47
    [<ffffffff8164303f>] notify_change+0x7cf/0xb20 fs/attr.c:482
    [<ffffffff8160156a>] do_truncate+0xca/0x130 fs/open.c:65
    [<ffffffff816017dd>] vfs_truncate+0x20d/0x240 fs/open.c:111
    [<ffffffff816018d8>] do_sys_truncate.part.0+0xc8/0xe0 fs/open.c:134
    [<ffffffff81601973>] do_sys_truncate fs/open.c:128 [inline]
    [<ffffffff81601973>] __do_sys_truncate fs/open.c:146 [inline]
    [<ffffffff81601973>] __se_sys_truncate fs/open.c:144 [inline]
    [<ffffffff81601973>] __x64_sys_truncate+0x33/0x50 fs/open.c:144
    [<ffffffff848ef745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff848ef745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

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