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staging/lustre/llite: deny non-root user for changelog operations

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To avoid potential security problems, non-privileged users should
have no permission to run 'lfs changelog' & 'lfs changelog_clear'.

Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-on: http://review.whamcloud.com/14280
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6415
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niu Yawei 2015-09-14 18:41:23 -04:00 committed by Greg Kroah-Hartman
parent ced41eba41
commit bbaa9c1032
1 changed files with 3 additions and 0 deletions
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3
drivers/staging/lustre/lustre/llite/dir.c
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@ -1734,6 +1734,9 @@ out_quotactl:
}
case OBD_IOC_CHANGELOG_SEND:
case OBD_IOC_CHANGELOG_CLEAR:
if (!capable(CFS_CAP_SYS_ADMIN))
return -EPERM;
rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
sizeof(struct ioc_changelog));
return rc;