8abcb1d6b2
Include security fixes and other recent "stable" fixes OBS-URL: https://build.opensuse.org/request/show/664459 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=445
49 lines
1.8 KiB
Diff
49 lines
1.8 KiB
Diff
From: Prasad J Pandit <pjp@fedoraproject.org>
|
|
Date: Thu, 13 Dec 2018 01:00:36 +0530
|
|
Subject: pvrdma: check number of pages when creating rings
|
|
|
|
When creating CQ/QP rings, an object can have up to
|
|
PVRDMA_MAX_FAST_REG_PAGES 8 pages. Check 'npages' parameter
|
|
to avoid excessive memory allocation or a null dereference.
|
|
|
|
Reported-by: Li Qiang <liq3ea@163.com>
|
|
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
|
|
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
|
|
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
|
|
(cherry picked from commit 2c858ce5da8ae6689c75182b73bc455a291cad41)
|
|
[BR: BSC#1119989 CVE-2018-20125]
|
|
Signed-off-by: Bruce Rogers <brogers@suse.com>
|
|
---
|
|
hw/rdma/vmw/pvrdma_cmd.c | 11 +++++++++++
|
|
1 file changed, 11 insertions(+)
|
|
|
|
diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c
|
|
index 4faeb21631..ce2514aacb 100644
|
|
--- a/hw/rdma/vmw/pvrdma_cmd.c
|
|
+++ b/hw/rdma/vmw/pvrdma_cmd.c
|
|
@@ -261,6 +261,11 @@ static int create_cq_ring(PCIDevice *pci_dev , PvrdmaRing **ring,
|
|
int rc = -EINVAL;
|
|
char ring_name[MAX_RING_NAME_SZ];
|
|
|
|
+ if (!nchunks || nchunks > PVRDMA_MAX_FAST_REG_PAGES) {
|
|
+ pr_dbg("invalid nchunks: %d\n", nchunks);
|
|
+ return rc;
|
|
+ }
|
|
+
|
|
pr_dbg("pdir_dma=0x%llx\n", (long long unsigned int)pdir_dma);
|
|
dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE);
|
|
if (!dir) {
|
|
@@ -377,6 +382,12 @@ static int create_qp_rings(PCIDevice *pci_dev, uint64_t pdir_dma,
|
|
char ring_name[MAX_RING_NAME_SZ];
|
|
uint32_t wqe_sz;
|
|
|
|
+ if (!spages || spages > PVRDMA_MAX_FAST_REG_PAGES
|
|
+ || !rpages || rpages > PVRDMA_MAX_FAST_REG_PAGES) {
|
|
+ pr_dbg("invalid pages: %d, %d\n", spages, rpages);
|
|
+ return rc;
|
|
+ }
|
|
+
|
|
pr_dbg("pdir_dma=0x%llx\n", (long long unsigned int)pdir_dma);
|
|
dir = rdma_pci_dma_map(pci_dev, pdir_dma, TARGET_PAGE_SIZE);
|
|
if (!dir) {
|