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fs/ntfs3: Check new size for limits

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commit 114346978cf61de02832cc3cc68432a3de70fb38 upstream.

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")

Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konstantin Komarov 2021-10-25 18:34:06 +03:00 committed by Greg Kroah-Hartman
parent dc05aa14d3
commit f45bd2922d
1 changed files with 7 additions and 1 deletions
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8
fs/ntfs3/file.c
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@ -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;