The fid parameter of TCREATE represents the directory that the file
should be created at. The current implementation mistakenly passes a
locally created fid for the file. The correct file fid is usually
retrieved by another WALK call, which does happen right after.
The problem happens when a new created fd is read from (i.e. where
private_data->fid is used), but not write to.
Fixes: 5643135a2846 ("fs/9p: This patch implements TLCREATE for 9p2000.L protocol.")
Signed-off-by: Victor Hsieh <victorhsieh@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
fs/9p/vfs_inode_dotl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 60328b21c5fb..90a7aaea918d 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -285,7 +285,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
err);
goto error;
}
- err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags),
+ err = p9_client_create_dotl(dfid, name, v9fs_open_to_dotl_flags(flags),
mode, gid, &qid);
if (err < 0) {
p9_debug(P9_DEBUG_VFS, "p9_client_open_dotl failed in creat %d\n",
--
2.27.0.383.g050319c2ae-goog
