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| author | Dave Airlie <airlied@redhat.com> | 2022-07-13 03:54:56 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-07-13 03:54:56 +0300 |
| commit | e23a5e14aa278858c2e3d81ec34e83aa9a4177c5 (patch) | |
| tree | 8b662fca8f0643d2b7ef0836da91835408075208 /drivers/dma-buf/udmabuf.c | |
| parent | 5e4cb0afe21e4e744ed808de1169a62ab35a57f5 (diff) | |
| parent | 32346491ddf24599decca06190ebca03ff9de7f8 (diff) | |
| download | linux-e23a5e14aa278858c2e3d81ec34e83aa9a4177c5.tar.xz | |
Backmerge tag 'v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge in rc6 so I can merge msm next easier.
Linux 5.19-rc6
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/dma-buf/udmabuf.c')
| -rw-r--r-- | drivers/dma-buf/udmabuf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index 384cb3d06ff3..38e8767ec371 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -32,8 +32,11 @@ static vm_fault_t udmabuf_vm_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct udmabuf *ubuf = vma->vm_private_data; + pgoff_t pgoff = vmf->pgoff; - vmf->page = ubuf->pages[vmf->pgoff]; + if (pgoff >= ubuf->pagecount) + return VM_FAULT_SIGBUS; + vmf->page = ubuf->pages[pgoff]; get_page(vmf->page); return 0; } |