Commit 98232d504db0a1f91ecaa93686ed3bf61963103b
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[PATCH] compat_sys_vmsplice: one-off in UIO_MAXIOV check
nr_segs may not be > UIO_MAXIOV, however it may be equal to. This makes the behaviour identical to the real sys_vmsplice(). The other foov syscalls also agree that this is the way to go. Signed-off-by: Jens Axboe <axboe@suse.de>
Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff
fs/compat.c
| ... | ... | @@ -1323,7 +1323,7 @@ |
| 1323 | 1323 | { |
| 1324 | 1324 | unsigned i; |
| 1325 | 1325 | struct iovec *iov; |
| 1326 | - if (nr_segs >= UIO_MAXIOV) | |
| 1326 | + if (nr_segs > UIO_MAXIOV) | |
| 1327 | 1327 | return -EINVAL; |
| 1328 | 1328 | iov = compat_alloc_user_space(nr_segs * sizeof(struct iovec)); |
| 1329 | 1329 | for (i = 0; i < nr_segs; i++) { |