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| author | Mark Brown <broonie@kernel.org> | 2021-09-01 17:30:37 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-09-01 17:30:37 +0100 |
| commit | 0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5 (patch) | |
| tree | 7d0bc8977cc78fcf949e0b6635a0635841ff0297 /drivers/vhost | |
| parent | 222039a2503e0839f859e18e6f09acb9997480d1 (diff) | |
| parent | 38b7673000949ca784fcb8a9feb70d2a802befa6 (diff) | |
| download | linux-next-0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5.tar.gz linux-next-0f2ef911de0bdf3a0ea1d9b28e9126d3e018bbd5.zip | |
Merge tag 'asoc-v5.15' into asoc-5.15
ASoC: Updates for v5.15
Quite a quiet release this time, mostly a combination of cleanups
and a good set of new drivers.
- Lots of cleanups and improvements to the Intel drivers,
including some new systems support.
- New support for AMD Vangoh, CUI CMM-4030D-261, Mediatek
Mt8195, Renesas RZ/G2L Mediatek Mt8195, RealTek RT101P,
Renesas RZ/G2L,, Rockchip RK3568 S/PDIF.
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vdpa.c | 3 | ||||
| -rw-r--r-- | drivers/vhost/vhost.c | 10 | ||||
| -rw-r--r-- | drivers/vhost/vringh.c | 2 |
3 files changed, 11 insertions, 4 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 210ab35a7ebf..9479f7f79217 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -614,7 +614,8 @@ static int vhost_vdpa_process_iotlb_update(struct vhost_vdpa *v, long pinned; int ret = 0; - if (msg->iova < v->range.first || + if (msg->iova < v->range.first || !msg->size || + msg->iova > U64_MAX - msg->size + 1 || msg->iova + msg->size - 1 > v->range.last) return -EINVAL; diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index b9e853e6094d..59edb5a1ffe2 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -735,10 +735,16 @@ static bool log_access_ok(void __user *log_base, u64 addr, unsigned long sz) (sz + VHOST_PAGE_SIZE * 8 - 1) / VHOST_PAGE_SIZE / 8); } +/* Make sure 64 bit math will not overflow. */ static bool vhost_overflow(u64 uaddr, u64 size) { - /* Make sure 64 bit math will not overflow. */ - return uaddr > ULONG_MAX || size > ULONG_MAX || uaddr > ULONG_MAX - size; + if (uaddr > ULONG_MAX || size > ULONG_MAX) + return true; + + if (!size) + return false; + + return uaddr > ULONG_MAX - size + 1; } /* Caller should have vq mutex and device mutex. */ diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index 4af8fa259d65..14e2043d7685 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -359,7 +359,7 @@ __vringh_iov(struct vringh *vrh, u16 i, iov = wiov; else { iov = riov; - if (unlikely(wiov && wiov->i)) { + if (unlikely(wiov && wiov->used)) { vringh_bad("Readable desc %p after writable", &descs[i]); err = -EINVAL; |