diff options
| author | David Howells <[email protected]> | 2023-05-22 14:49:49 +0100 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2023-05-24 08:42:15 -0600 |
| commit | 83aeff881e53fab5b46e4ceb5fb47fa0a22acba9 (patch) | |
| tree | ac965bd2351b9618aaa9374e1cf9d2b2d7727cf3 | |
| parent | c37222082f23c456664d1c3182a714670ab8f9a4 (diff) | |
splice: Make filemap_splice_read() check s_maxbytes
Make filemap_splice_read() check s_maxbytes analogously to filemap_read().
Signed-off-by: David Howells <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Christian Brauner <[email protected]>
cc: Steve French <[email protected]>
cc: Jens Axboe <[email protected]>
cc: Al Viro <[email protected]>
cc: David Hildenbrand <[email protected]>
cc: John Hubbard <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
| -rw-r--r-- | mm/filemap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index a2006936a6ae..0fcb0b80c2e2 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2887,6 +2887,9 @@ ssize_t filemap_splice_read(struct file *in, loff_t *ppos, bool writably_mapped; int i, error = 0; + if (unlikely(*ppos >= in->f_mapping->host->i_sb->s_maxbytes)) + return 0; + init_sync_kiocb(&iocb, in); iocb.ki_pos = *ppos; |