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authorLinus Torvalds <torvalds@linux-foundation.org>2021-05-29 06:33:28 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-29 06:33:28 -1000
commite1a9e3db3bb59c2fa0c0de0b3381c64b3b6ffba7 (patch)
treeccb7cab00ab983b242c7c4c52aa0a8507929a7b4 /fs
parent494b99f712d00fee7e0927067081954fc493b6d9 (diff)
parent0c8713153fbf7ba4e45172e139d501c86006dc03 (diff)
Merge tag 'driver-core-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH: "Here are three small driver core / debugfs fixes for 5.13-rc4: - debugfs fix for incorrect "lockdown" mode for selinux accesses - two device link changes, one bugfix and one cleanup All of these have been in linux-next for over a week with no reported problems" * tag 'driver-core-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: drivers: base: Reduce device link removal code duplication drivers: base: Fix device link removal debugfs: fix security_locked_down() call for SELinux
Diffstat (limited to 'fs')
-rw-r--r--fs/debugfs/inode.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 1d252164d97b..8129a430d789 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -45,10 +45,13 @@ static unsigned int debugfs_allow __ro_after_init = DEFAULT_DEBUGFS_ALLOW_BITS;
static int debugfs_setattr(struct user_namespace *mnt_userns,
struct dentry *dentry, struct iattr *ia)
{
- int ret = security_locked_down(LOCKDOWN_DEBUGFS);
+ int ret;
- if (ret && (ia->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)))
- return ret;
+ if (ia->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)) {
+ ret = security_locked_down(LOCKDOWN_DEBUGFS);
+ if (ret)
+ return ret;
+ }
return simple_setattr(&init_user_ns, dentry, ia);
}

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