From: Nathaniel Clark <nathaniel.l.cl...@intel.com> Check that attr mode is valid before using it when determining if to clear SGID and SUID bits in ll_setattr.
Signed-off-by: Nathaniel Clark <nathaniel.l.cl...@intel.com> Reviewed-on: http://review.whamcloud.com/10153 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4924 Reviewed-by: Lai Siyao <lai.si...@intel.com> Reviewed-by: Andreas Dilger <andreas.dil...@intel.com> Signed-off-by: Oleg Drokin <oleg.dro...@intel.com> --- drivers/staging/lustre/lustre/llite/llite_lib.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index deca27e..7eadd60 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1537,12 +1537,14 @@ int ll_setattr(struct dentry *de, struct iattr *attr) !(attr->ia_mode & S_ISGID)))) attr->ia_valid |= ATTR_FORCE; - if ((mode & S_ISUID) && + if ((attr->ia_valid & ATTR_MODE) && + (mode & S_ISUID) && !(attr->ia_mode & S_ISUID) && !(attr->ia_valid & ATTR_KILL_SUID)) attr->ia_valid |= ATTR_KILL_SUID; - if (((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && + if ((attr->ia_valid & ATTR_MODE) && + ((mode & (S_ISGID|S_IXGRP)) == (S_ISGID|S_IXGRP)) && !(attr->ia_mode & S_ISGID) && !(attr->ia_valid & ATTR_KILL_SGID)) attr->ia_valid |= ATTR_KILL_SGID; -- 1.9.0 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
