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authorAl Viro <viro@zeniv.linux.org.uk>2009-12-22 23:45:11 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2010-01-14 09:05:25 -0500
commit86acdca1b63e6890540fa19495cfc708beff3d8b (patch)
treef589566363ef4f77098eba9ced48325f410168e6 /fs/namei.c
parent004b35063296b6772fa72404a35b498f1e71e87e (diff)
fix autofs/afs/etc. magic mountpoint breakage
We end up trying to kfree() nd.last.name on open("/mnt/tmp", O_CREAT) if /mnt/tmp is an autofs direct mount. The reason is that nd.last_type is bogus here; we want LAST_BIND for everything of that kind and we get LAST_NORM left over from finding parent directory. So make sure that it *is* set properly; set to LAST_BIND before doing ->follow_link() - for normal symlinks it will be changed by __vfs_follow_link() and everything else needs it set that way. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c
index b55440baf7ab..1b26b1620664 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -561,6 +561,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata
561 dget(dentry); 561 dget(dentry);
562 } 562 }
563 mntget(path->mnt); 563 mntget(path->mnt);
564 nd->last_type = LAST_BIND;
564 cookie = dentry->d_inode->i_op->follow_link(dentry, nd); 565 cookie = dentry->d_inode->i_op->follow_link(dentry, nd);
565 error = PTR_ERR(cookie); 566 error = PTR_ERR(cookie);
566 if (!IS_ERR(cookie)) { 567 if (!IS_ERR(cookie)) {