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| author | Jan Kara | 2014-09-04 16:19:47 +0200 |
|---|---|---|
| committer | Jan Kara | 2014-09-04 21:37:39 +0200 |
| commit | 4071b913622316970d0e1919f7d82b4403fec5f2 (patch) | |
| tree | 0e595eaf47564dcb514009f678623171a9b2ce55 /fs | |
| parent | udf: Make udf_read_inode() and udf_iget() return error (diff) | |
| download | kernel-qcow2-linux-4071b913622316970d0e1919f7d82b4403fec5f2.tar.gz kernel-qcow2-linux-4071b913622316970d0e1919f7d82b4403fec5f2.tar.xz kernel-qcow2-linux-4071b913622316970d0e1919f7d82b4403fec5f2.zip | |
udf: Properly detect stale inodes
NFS can easily ask for inodes that are already deleted. Currently UDF
happily returns such inodes which is a bug. Return -ESTALE if
udf_read_inode() is asked to read deleted inode.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/udf/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 788fc58ea78e..3a44d9187aad 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1435,8 +1435,10 @@ reread: read_unlock(&sbi->s_cred_lock); link_count = le16_to_cpu(fe->fileLinkCount); - if (!link_count) - link_count = 1; + if (!link_count) { + ret = -ESTALE; + goto out; + } set_nlink(inode, link_count); inode->i_size = le64_to_cpu(fe->informationLength); |