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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=rathc@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1786964371421158501 Content-Type: text/plain; charset="utf-8" Add missing lower bound check for H_WATCHDOG H_CALL's watchdogNumber parame= ter as per PAPR documentation ver 12.10.00 section 14.15.5 'H_WATCHDOG'. Closes : https://gitlab.com/qemu-project/qemu/-/work_items/3600 Signed-off-by: Chinmay Rath --- hw/watchdog/spapr_watchdog.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/watchdog/spapr_watchdog.c b/hw/watchdog/spapr_watchdog.c index 5b3f50de3a..5d7478e833 100644 --- a/hw/watchdog/spapr_watchdog.c +++ b/hw/watchdog/spapr_watchdog.c @@ -145,7 +145,7 @@ static target_ulong h_watchdog(PowerPCCPU *cpu, =20 switch (operation) { case PSERIES_WDTF_OP_START: - if (watchdogNumber > ARRAY_SIZE(spapr->wds)) { + if (watchdogNumber < 1 || watchdogNumber > ARRAY_SIZE(spapr->wds))= { return H_P2; } if (timeoutInMs <=3D WDT_MIN_TIMEOUT) { @@ -170,7 +170,8 @@ static target_ulong h_watchdog(PowerPCCPU *cpu, case PSERIES_WDTF_OP_STOP: if (watchdogNumber =3D=3D PSERIES_WDT_STOP_ALL) { ret =3D watchdog_stop_all(spapr); - } else if (watchdogNumber <=3D ARRAY_SIZE(spapr->wds)) { + } else if (watchdogNumber > 0 && + watchdogNumber <=3D ARRAY_SIZE(spapr->wds)) { ret =3D watchdog_stop(watchdogNumber, &spapr->wds[watchdogNumber - 1]); } else { @@ -184,7 +185,7 @@ static target_ulong h_watchdog(PowerPCCPU *cpu, trace_spapr_watchdog_query(args[0]); break; case PSERIES_WDTF_OP_QUERY_LPM: - if (watchdogNumber > ARRAY_SIZE(spapr->wds)) { + if (watchdogNumber < 1 || watchdogNumber > ARRAY_SIZE(spapr->wds))= { return H_P2; } args[0] =3D PSERIES_WDTQL_QUERY_NOT_STOPPED; --=20 2.55.0