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H A Dext4.hdiff c37e9e013469521d9adb932d17a1795c139b36db Sun Jun 17 06:41:14 CEST 2018 Theodore Ts'o <tytso@mit.edu> ext4: add more inode number paranoia checks

If there is a directory entry pointing to a system inode (such as a
journal inode), complain and declare the file system to be corrupted.

Also, if the superblock's first inode number field is too small,
refuse to mount the file system.

This addresses CVE-2018-10882.

https://bugzilla.kernel.org/show_bug.cgi?id=200069

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
H A Dsuper.cdiff c37e9e013469521d9adb932d17a1795c139b36db Sun Jun 17 06:41:14 CEST 2018 Theodore Ts'o <tytso@mit.edu> ext4: add more inode number paranoia checks

If there is a directory entry pointing to a system inode (such as a
journal inode), complain and declare the file system to be corrupted.

Also, if the superblock's first inode number field is too small,
refuse to mount the file system.

This addresses CVE-2018-10882.

https://bugzilla.kernel.org/show_bug.cgi?id=200069

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
H A Dinode.cdiff c37e9e013469521d9adb932d17a1795c139b36db Sun Jun 17 06:41:14 CEST 2018 Theodore Ts'o <tytso@mit.edu> ext4: add more inode number paranoia checks

If there is a directory entry pointing to a system inode (such as a
journal inode), complain and declare the file system to be corrupted.

Also, if the superblock's first inode number field is too small,
refuse to mount the file system.

This addresses CVE-2018-10882.

https://bugzilla.kernel.org/show_bug.cgi?id=200069

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org