https://github.com/torvalds/linux
The Smack LSM hook for security_d_instantiate checks the inode's i_op->getxattr value to determine if the containing filesystem supports extended attributes. The BTRFS filesystem sets the inode's i_op value only after it has instantiated the inode. This results in Smack incorrectly giving new BTRFS inodes attributes from the filesystem defaults on the assumption that values can't be stored on the filesystem. This patch moves the assignment of inode operation vectors ahead of the calls to d_instantiate, letting Smack know that the filesystem supports extended attributes. There should be no impact on the performance or behavior of BTRFS. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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BTRFS: Establish i_ops before calling d_instantiate
File | Mode | Size |
---|---|---|
Documentation | ||
arch | ||
block | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.gitignore | -rw-r--r-- | 1014 bytes |
.mailmap | -rw-r--r-- | 4.1 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 92.6 KB |
Kbuild | -rw-r--r-- | 2.4 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 196.7 KB |
Makefile | -rw-r--r-- | 52.3 KB |
README | -rw-r--r-- | 17.0 KB |
REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
Computing file changes ...