diff mbox series

[1/2] hw/nvme: fix null pointer access in directive receive

Message ID 20230808151611.81933-5-its@irrelevant.dk
State New
Headers show
Series hw/nvme: two fixes | expand

Commit Message

Klaus Jensen Aug. 8, 2023, 3:16 p.m. UTC 
From: Klaus Jensen <k.jensen@samsung.com>

nvme_directive_receive() does not check if an endurance group has been
configured (set) prior to testing if flexible data placement is enabled
or not.

Fix this.

Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1815
Fixes: 73064edfb864 ("hw/nvme: flexible data placement emulation")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
 hw/nvme/ctrl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index d217ae91b506..e5b5c7034d2b 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -6900,7 +6900,7 @@  static uint16_t nvme_directive_receive(NvmeCtrl *n, NvmeRequest *req)
     case NVME_DIRECTIVE_IDENTIFY:
         switch (doper) {
         case NVME_DIRECTIVE_RETURN_PARAMS:
-            if (ns->endgrp->fdp.enabled) {
+            if (ns->endgrp && ns->endgrp->fdp.enabled) {
                 id.supported |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;
                 id.enabled |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;
                 id.persistent |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;