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Tue, 8 Aug 2023 11:16:17 -0400 (EDT) From: Klaus Jensen To: qemu-devel@nongnu.org Cc: Keith Busch , Jesper Devantier , Klaus Jensen , qemu-block@nongnu.org, Klaus Jensen , qemu-stable@nongnu.org Subject: [PATCH 1/2] hw/nvme: fix null pointer access in directive receive Date: Tue, 8 Aug 2023 17:16:13 +0200 Message-ID: <20230808151611.81933-5-its@irrelevant.dk> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230808151611.81933-4-its@irrelevant.dk> References: <20230808151611.81933-4-its@irrelevant.dk> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1116; i=k.jensen@samsung.com; h=from:subject; bh=j+NXBa/MMLYk3DAJYgmXBjwSLj9vOoizgsNljLeNsQo=; b=owJ4nAFtAZL+kA0DAAoBTeGvMW1PDekByyZiAGTSXDvoFpMdDmuwaGu2FDyWDR/d/iE7ReVKy d+P2ntJ4I+HdokBMwQAAQoAHRYhBFIoM6p14tzmokdmwE3hrzFtTw3pBQJk0lw7AAoJEE3hrzFt Tw3pgjoH/2QTQ3WtHqaSM4VIhTAlj/sXnU+bj2DV0mmfEiMZvkbKtjTux1h+UjjI5BEhz3V6qJz 4FXdycOsIolXOWcm4UlOnCW3Am/egdlZNXt/UoBs0KKqP/+RhqVbs6HgOL2oNdNH2ryQLXaiLUD fFo/7dZXhNKtfCpTIsSE53Rm00I+7W5p0sDVtsweJxAtZCEBc2+kFSciJCip8y2OCjxYOXMXifb ui3+qM3+SyQxwSWaM80eP7AYaUC6oZJUuJpyA6w0K6Irlua4TaHzyiAAjuXYqxAJySXTrZTeOEb sQFnZN0j5wzliOK+qdwGsLsmR6UyN//QPOmzcjVMVJXMYPxms6lMAKjt X-Developer-Key: i=k.jensen@samsung.com; a=openpgp; fpr=DDCA4D9C9EF931CC3468427263D56FC5E55DA838 Received-SPF: pass client-ip=64.147.123.21; envelope-from=its@irrelevant.dk; helo=wout5-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Klaus Jensen 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 --- hw/nvme/ctrl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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;