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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-07 11:45:23 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-07 11:45:23 -0500
commitce779d6b5bbe6a32452a882605d09518cc79e4ba (patch)
tree2d8ffb9daaf118e2561cdc73ffa5e5684d91b235
parentf27c2f69cc8edc03ea8086f974811b9b45b2f3a5 (diff)
parentc01638f5d919728f565bf8b5e0a6a159642df0d9 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fix from Miklos Szeredi: "Fix a regression spotted by Jeff Layton" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: fix clearing suid, sgid for chown()
-rw-r--r--fs/fuse/dir.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b3ebe512d64c..096f79997f75 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1739,8 +1739,6 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
1739 * This should be done on write(), truncate() and chown(). 1739 * This should be done on write(), truncate() and chown().
1740 */ 1740 */
1741 if (!fc->handle_killpriv) { 1741 if (!fc->handle_killpriv) {
1742 int kill;
1743
1744 /* 1742 /*
1745 * ia_mode calculation may have used stale i_mode. 1743 * ia_mode calculation may have used stale i_mode.
1746 * Refresh and recalculate. 1744 * Refresh and recalculate.
@@ -1750,12 +1748,11 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
1750 return ret; 1748 return ret;
1751 1749
1752 attr->ia_mode = inode->i_mode; 1750 attr->ia_mode = inode->i_mode;
1753 kill = should_remove_suid(entry); 1751 if (inode->i_mode & S_ISUID) {
1754 if (kill & ATTR_KILL_SUID) {
1755 attr->ia_valid |= ATTR_MODE; 1752 attr->ia_valid |= ATTR_MODE;
1756 attr->ia_mode &= ~S_ISUID; 1753 attr->ia_mode &= ~S_ISUID;
1757 } 1754 }
1758 if (kill & ATTR_KILL_SGID) { 1755 if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
1759 attr->ia_valid |= ATTR_MODE; 1756 attr->ia_valid |= ATTR_MODE;
1760 attr->ia_mode &= ~S_ISGID; 1757 attr->ia_mode &= ~S_ISGID;
1761 } 1758 }