OpenSDV
/
original_kernel
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

configs updates for Linux 5.2: 

- a fix for an error path use after free (YueHaibing)
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlzdHsQLHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYPcPBAAj2ZWXip3ouxUxO7dTQYHEx3M0otpI8+r7cX0d3ud
 sJR7GLcXfl/+wj5D34TFFLdUFQFezshy3jBKQE2dD6/b8DL9qMv5BSgI3Z96h27h
 S9jPO5n5pSoHqnfVxNaG3OZBOhWMVOlD3YMBlikcjkKz0ad4ZxscRIPxDXranLwk
 nRtYMLYAAqctBYlXWjqG5zz/kzEWvI0hzJsrihunHQpQZs1398NTUvqCTRn/rsBl
 RfCJUG+mIe54JiO+umTRHPiriMjsCUFxiW6tDzyPnM82lQHnXR/qkN7NeReHu6FR
 unxjK0Yxu2zi/E4daTx/GEZM1mGGyyamwxbYYQ2obQeG34R9WmtJpE7d385rHJC8
 H3oOihvRjYrUTlsilPkISUB+GbtDXpuh7Ij6zm+ypZ6J+Lug1SrP0HmH8ti2nRbD
 tCxai02BcS4BivfIxidx1q8JYBSg1KFLXjz5O7HjpxGmw893l2IhbBAvy1HEhpP7
 nOuebnLDdfCbdWtDRfH3Wa9wotR3Y3nuGrmeD4z9aZ1qyH8acWmSP9Oq6z/UGpbN
 4N55eFqKFZZxSJQfFNqcGd7cS70D92h1MM/mpWgEDD1qvBe1kAxD2SfGIm2559J2
 tZbxSv8PjXYzWXaAVmHsagRVbB4rhSRMWswGey0YEkDG+viuIqpPV5Fx++RzP3pf
 6wQ=
 =lNOc
 -----END PGP SIGNATURE-----

Merge tag 'configfs-for-5.2' of git://git.infradead.org/users/hch/configfs

Pull configfs update from Christoph Hellwig:

 - a fix for an error path use after free (YueHaibing)

* tag 'configfs-for-5.2' of git://git.infradead.org/users/hch/configfs:
  configfs: fix possible use-after-free in configfs_register_group
This commit is contained in:
Linus Torvalds 2019-05-16 11:46:58 -07:00
parent 27ebbf9d5b 35399f87e2
commit 4e785e8d99
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
fs/configfs/dir.c
View File

@ -1757,12 +1757,19 @@ int configfs_register_group(struct config_group *parent_group,
inode_lock_nested(d_inode(parent), I_MUTEX_PARENT);
ret = create_default_group(parent_group, group);
if (!ret) {
spin_lock(&configfs_dirent_lock);
configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata);
spin_unlock(&configfs_dirent_lock);
}
if (ret)
goto err_out;
spin_lock(&configfs_dirent_lock);
configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata);
spin_unlock(&configfs_dirent_lock);
inode_unlock(d_inode(parent));
return 0;
err_out:
inode_unlock(d_inode(parent));
mutex_lock(&subsys->su_mutex);
unlink_group(group);
mutex_unlock(&subsys->su_mutex);
return ret;
}
EXPORT_SYMBOL(configfs_register_group);