Changeset 80582 in vbox

Timestamp:

Sep 4, 2019 10:27:59 AM (5 years ago)

Author:

vboxsync

Message:

linux/vboxsf: ticketref:18805: Linux guests: calls to aio_{read,write}(3) may fail inside shared folder

File:

• trunk/src/VBox/Additions/linux/sharedfolders/regops.c (modified) (2 diffs)

trunk/src/VBox/Additions/linux/sharedfolders/regops.c

@@ -348 +348 @@
                 if (pSrcIter->type & ITER_KVEC)
                     memcpy(pbDst, (void *)pSrcIter->iov->iov_base + pSrcIter->iov_offset, cbThisCopy);
-                else if (!copy_from_user(pbDst, pSrcIter->iov->iov_base + pSrcIter->iov_offset, cbThisCopy))
+                else if (copy_from_user(pbDst, pSrcIter->iov->iov_base + pSrcIter->iov_offset, cbThisCopy) != 0)
                     break;
                 pbDst    += cbThisCopy;
@@ -387 +387 @@
                 if (pDstIter->type & ITER_KVEC)
                     memcpy((void *)pDstIter->iov->iov_base + pDstIter->iov_offset, pbSrc, cbThisCopy);
-                else if (!copy_to_user(pDstIter->iov->iov_base + pDstIter->iov_offset, pbSrc, cbThisCopy)) {
+                else if (copy_to_user(pDstIter->iov->iov_base + pDstIter->iov_offset, pbSrc, cbThisCopy) != 0) {
                     break;
                 }