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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2020-06-04 08:05:31 +0900 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2020-06-09 16:50:07 +0900 |
| commit | 29bbb14bfc80dd760b07d2be0a27e610562982e3 (patch) | |
| tree | 750e7f135a9b5671e538f11b7e9863205f1df871 /fs/exfat | |
| parent | f341a7d8dcc4e3d01544d7bc145633f062ef6249 (diff) | |
| download | lwn-29bbb14bfc80dd760b07d2be0a27e610562982e3.tar.gz lwn-29bbb14bfc80dd760b07d2be0a27e610562982e3.zip | |
exfat: fix incorrect update of stream entry in __exfat_truncate()
At truncate, there is a problem of incorrect updating in the file entry
pointer instead of stream entry. This will cause the problem of
overwriting the time field of the file entry to new_size. Fix it to
update stream entry.
Fixes: 98d917047e8b ("exfat: add file operations")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Diffstat (limited to 'fs/exfat')
| -rw-r--r-- | fs/exfat/file.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/exfat/file.c b/fs/exfat/file.c index 8e3f0eef45d7..fce03f318787 100644 --- a/fs/exfat/file.c +++ b/fs/exfat/file.c @@ -171,11 +171,11 @@ int __exfat_truncate(struct inode *inode, loff_t new_size) /* File size should be zero if there is no cluster allocated */ if (ei->start_clu == EXFAT_EOF_CLUSTER) { - ep->dentry.stream.valid_size = 0; - ep->dentry.stream.size = 0; + ep2->dentry.stream.valid_size = 0; + ep2->dentry.stream.size = 0; } else { - ep->dentry.stream.valid_size = cpu_to_le64(new_size); - ep->dentry.stream.size = ep->dentry.stream.valid_size; + ep2->dentry.stream.valid_size = cpu_to_le64(new_size); + ep2->dentry.stream.size = ep->dentry.stream.valid_size; } if (new_size == 0) { |