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| author | Brian Wood <brian.j.wood@intel.com> | 2017-02-27 16:58:40 -0800 |
|---|---|---|
| committer | Brian Wood <brian.j.wood@intel.com> | 2017-02-28 15:35:14 -0800 |
| commit | b7147432cf0d58533bd21fe594d0be1d153f91a6 (patch) | |
| tree | aec042cd9c91432c09285381c5d5af85072975c9 /fs/aio.c | |
| parent | ce7cfcfa1251122880d34fae7259309b64a78434 (diff) | |
| parent | ec55e7c2bf49a426b6f8204505bd267c77554d37 (diff) | |
| download | edison-v3.10-n-iot-preview-4.tar.gz | |
Merge remote-tracking branch 'remotes/origin/brillo/linux-3.10.y' into Brillo-20170221-3.10_kernelandroid-n-iot-preview-4n-iot-preview-4
Conflicts:
crypto/blkcipher.c
drivers/platform/x86/intel_scu_ipcutil.c
drivers/usb/gadget/u_ether.c
fs/ext4/extents.c
net/bluetooth/sco.c
net/wireless/scan.c
Change-Id: Iaea6d22acb3da6b0477d71cf546858d35295e3d2
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 11 |
1 files changed, 8 insertions, 3 deletions
@@ -977,12 +977,17 @@ static ssize_t aio_setup_vectored_rw(int rw, struct kiocb *kiocb, bool compat) static ssize_t aio_setup_single_vector(int rw, struct kiocb *kiocb) { - if (unlikely(!access_ok(!rw, kiocb->ki_buf, kiocb->ki_nbytes))) - return -EFAULT; + size_t len = kiocb->ki_nbytes; + + if (len > MAX_RW_COUNT) + len = MAX_RW_COUNT; + + if (unlikely(!access_ok(!rw, kiocb->ki_buf, len))) + return -EFAULT; kiocb->ki_iovec = &kiocb->ki_inline_vec; kiocb->ki_iovec->iov_base = kiocb->ki_buf; - kiocb->ki_iovec->iov_len = kiocb->ki_nbytes; + kiocb->ki_iovec->iov_len = len; kiocb->ki_nr_segs = 1; return 0; } |