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HPFS: Restrict uid and gid to 16-bit values

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Restrict uid and gid to 16-bit values.

HPFS stores only 2 bytes in the EAs.

Signed-off-by: Mikulas Patocka <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Mikulas Patocka 2011-05-08 20:44:00 +02:00 • committed by Linus Torvalds
commit 48f10e8ce7
1 changed files with 4 additions and 0 deletions
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4
fs/hpfs/inode.c
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@ -261,6 +261,10 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr)
hpfs_lock(inode->i_sb);
if (inode->i_ino == hpfs_sb(inode->i_sb)->sb_root)
goto out_unlock;
if ((attr->ia_valid & ATTR_UID) && attr->ia_uid >= 0x10000)
goto out_unlock;
if ((attr->ia_valid & ATTR_GID) && attr->ia_gid >= 0x10000)
goto out_unlock;
if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size)
goto out_unlock;