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authorKlaus Jensen <k.jensen@samsung.com>2023-08-08 17:16:13 +0200
committerKlaus Jensen <k.jensen@samsung.com>2023-08-09 15:32:32 +0200
commit6c8f8456cb0b239812dee5211881426496da7b98 (patch)
tree285f5438b98bde0784a508cc35e18225a89b4275 /hw/nvme/ctrl.c
parenta8fc5165aab02f328ccd148aafec1e59fd1426eb (diff)
downloadfocaccia-qemu-6c8f8456cb0b239812dee5211881426496da7b98.tar.gz
focaccia-qemu-6c8f8456cb0b239812dee5211881426496da7b98.zip
hw/nvme: fix null pointer access in directive receive
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")
Reviewed-by: Jesper Wendel Devantier <j.devantier@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Diffstat (limited to 'hw/nvme/ctrl.c')
-rw-r--r--hw/nvme/ctrl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index d217ae91b5..e5b5c7034d 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;