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Date: Wed, 15 Oct 2008 23:35:27 +0400 From: Dmitri Monakhov <dmonakhov@...nvz.org> To: linux-kernel@...r.kernel.org Subject: [PATCH] vfs: Fix possible chmod/truncate race condition. Signed-off-by: Dmitri Monakhov <dmonakhov@...nvz.org> --- fs/open.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/fs/open.c b/fs/open.c index 07da935..3423b94 100644 --- a/fs/open.c +++ b/fs/open.c @@ -214,10 +214,9 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs, newattrs.ia_valid |= ATTR_FILE; } + mutex_lock(&dentry->d_inode->i_mutex); /* Remove suid/sgid on truncate too */ newattrs.ia_valid |= should_remove_suid(dentry); - - mutex_lock(&dentry->d_inode->i_mutex); err = notify_change(dentry, &newattrs); mutex_unlock(&dentry->d_inode->i_mutex); return err; -- 1.5.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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