diff options
| author | Duane Griffin <duaneg@dghda.com> | 2008-12-19 20:47:16 +0000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-12-31 18:07:39 -0500 |
| commit | 21acaf8e8da00235be59a3e489d5fa2a8721cafc (patch) | |
| tree | 85db3464bad98d42a37126cada03b3f7a2acb0b1 /fs/sysv/inode.c | |
| parent | e83c1397cafc4e44f868289db5e417463c0d09a4 (diff) | |
| download | lwn-21acaf8e8da00235be59a3e489d5fa2a8721cafc.tar.gz lwn-21acaf8e8da00235be59a3e489d5fa2a8721cafc.zip | |
sysv: ensure fast symlinks are NUL-terminated
Ensure fast symlink targets are NUL-terminated, even if corrupted
on-disk.
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/sysv/inode.c')
| -rw-r--r-- | fs/sysv/inode.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index df0d435baa48..3d81bf58dae2 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -27,6 +27,7 @@ #include <linux/init.h> #include <linux/buffer_head.h> #include <linux/vfs.h> +#include <linux/namei.h> #include <asm/byteorder.h> #include "sysv.h" @@ -163,8 +164,11 @@ void sysv_set_inode(struct inode *inode, dev_t rdev) if (inode->i_blocks) { inode->i_op = &sysv_symlink_inode_operations; inode->i_mapping->a_ops = &sysv_aops; - } else + } else { inode->i_op = &sysv_fast_symlink_inode_operations; + nd_terminate_link(SYSV_I(inode)->i_data, inode->i_size, + sizeof(SYSV_I(inode)->i_data) - 1); + } } else init_special_inode(inode, inode->i_mode, rdev); } |