From e5b465a2510b029ddb19fd261d318b5f2e23b19e Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Wed, 9 Mar 2011 11:49:13 -0600 Subject: [PATCH] eCryptfs: Unlock page in write_begin error path commit 50f198ae16ac66508d4b8d5a40967a8507ad19ee upstream. Unlock the page in error path of ecryptfs_write_begin(). This may happen, for example, if decryption fails while bring the page up-to-date. Signed-off-by: Tyler Hicks Signed-off-by: Paul Gortmaker --- fs/ecryptfs/mmap.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 2ee9a3a7b68c..eb1a0c9844bc 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -377,6 +377,11 @@ static int ecryptfs_write_begin(struct file *file, && (pos != 0)) zero_user(page, 0, PAGE_CACHE_SIZE); out: + if (unlikely(rc)) { + unlock_page(page); + page_cache_release(page); + *pagep = NULL; + } return rc; } -- 2.39.5