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Date: Mon, 25 Oct 2021 19:59:26 +0300 From: Konstantin Komarov <almaz.alexandrovich@...agon-software.com> To: <ntfs3@...ts.linux.dev> CC: <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org> Subject: [PATCH 3/4] fs/ntfs3: Check new size for limits We must check size before trying to allocate. Size can be set for example by "ulimit -f". Fixes xfstest generic/228 Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation") Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com> --- fs/ntfs3/file.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c index 5418e5ba64b3..efb3110e1790 100644 --- a/fs/ntfs3/file.c +++ b/fs/ntfs3/file.c @@ -661,7 +661,13 @@ static long ntfs_fallocate(struct file *file, int mode, loff_t vbo, loff_t len) /* * Normal file: Allocate clusters, do not change 'valid' size. */ - err = ntfs_set_size(inode, max(end, i_size)); + loff_t new_size = max(end, i_size); + + err = inode_newsize_ok(inode, new_size); + if (err) + goto out; + + err = ntfs_set_size(inode, new_size); if (err) goto out; -- 2.33.0
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