From 3767e255b390d72f9a33c08d9e86c5f21f25860f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 27 May 2016 11:06:05 -0400 Subject: switch ->setxattr() to passing dentry and inode separately smack ->d_instantiate() uses ->setxattr(), so to be able to call it before we'd hashed the new dentry and attached it to inode, we need ->setxattr() instances getting the inode as an explicit argument rather than obtaining it from dentry. Similar change for ->getxattr() had been done in commit ce23e64. Unlike ->getxattr() (which is used by both selinux and smack instances of ->d_instantiate()) ->setxattr() is used only by smack one and unfortunately it got missed back then. Reported-by: Seung-Woo Kim Tested-by: Casey Schaufler Signed-off-by: Al Viro --- fs/kernfs/inode.c | 11 ++++++----- fs/kernfs/kernfs-internal.h | 3 ++- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'fs/kernfs') diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c index 1719649d7ad7..63b925d5ba1e 100644 --- a/fs/kernfs/inode.c +++ b/fs/kernfs/inode.c @@ -160,10 +160,11 @@ static int kernfs_node_setsecdata(struct kernfs_node *kn, void **secdata, return 0; } -int kernfs_iop_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +int kernfs_iop_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { - struct kernfs_node *kn = dentry->d_fsdata; + struct kernfs_node *kn = inode->i_private; struct kernfs_iattrs *attrs; void *secdata; int error; @@ -175,11 +176,11 @@ int kernfs_iop_setxattr(struct dentry *dentry, const char *name, if (!strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN)) { const char *suffix = name + XATTR_SECURITY_PREFIX_LEN; - error = security_inode_setsecurity(d_inode(dentry), suffix, + error = security_inode_setsecurity(inode, suffix, value, size, flags); if (error) return error; - error = security_inode_getsecctx(d_inode(dentry), + error = security_inode_getsecctx(inode, &secdata, &secdata_len); if (error) return error; diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h index 45c9192c276e..37159235ac10 100644 --- a/fs/kernfs/kernfs-internal.h +++ b/fs/kernfs/kernfs-internal.h @@ -81,7 +81,8 @@ int kernfs_iop_permission(struct inode *inode, int mask); int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr); int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); -int kernfs_iop_setxattr(struct dentry *dentry, const char *name, const void *value, +int kernfs_iop_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags); int kernfs_iop_removexattr(struct dentry *dentry, const char *name); ssize_t kernfs_iop_getxattr(struct dentry *dentry, struct inode *inode, -- cgit v1.2.3