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Wed, 20 Nov 2024 00:53:09 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, David Hildenbrand , Halil Pasic , Christian Borntraeger , Eric Farman , Thomas Huth , Jared Rossi , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 1/2] hw/s390x: Declare loadparm as char[LOADPARM_LEN] Date: Wed, 20 Nov 2024 09:52:59 +0100 Message-ID: <20241120085300.49866-2-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241120085300.49866-1-philmd@linaro.org> References: <20241120085300.49866-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=philmd@linaro.org; helo=mail-wm1-x32b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1732092854089116600 "hw/s390x/ipl/qipl.h" defines loadparm[] length as LOADPARM_LEN, use that instead of the magic '8' value. Use a char type for char buffer. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/s390x/ccw-device.h | 5 +++-- hw/s390x/ipl.h | 2 +- include/hw/qdev-properties-system.h | 2 +- include/hw/s390x/s390-virtio-ccw.h | 3 ++- hw/core/qdev-properties-system.c | 8 +++++--- hw/s390x/ipl.c | 6 +++--- hw/scsi/scsi-disk.c | 2 +- 7 files changed, 16 insertions(+), 12 deletions(-) diff --git a/hw/s390x/ccw-device.h b/hw/s390x/ccw-device.h index 4439feb140..94a9b35714 100644 --- a/hw/s390x/ccw-device.h +++ b/hw/s390x/ccw-device.h @@ -15,6 +15,7 @@ #include "hw/qdev-core.h" #include "hw/s390x/css.h" #include "hw/s390x/css-bridge.h" +#include "hw/s390x/ipl/qipl.h" =20 struct CcwDevice { DeviceState parent_obj; @@ -27,7 +28,7 @@ struct CcwDevice { /* The actual busid of the virtual subchannel. */ CssDevId subch_id; /* If set, use this loadparm value when device is boot target */ - uint8_t loadparm[8]; + char loadparm[LOADPARM_LEN]; }; typedef struct CcwDevice CcwDevice; =20 @@ -54,6 +55,6 @@ OBJECT_DECLARE_TYPE(CcwDevice, CCWDeviceClass, CCW_DEVICE) extern const PropertyInfo ccw_loadparm; =20 #define DEFINE_PROP_CCW_LOADPARM(_n, _s, _f) \ - DEFINE_PROP(_n, _s, _f, ccw_loadparm, typeof(uint8_t[8])) + DEFINE_PROP(_n, _s, _f, ccw_loadparm, typeof(char[LOADPARM_LEN])) =20 #endif diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index d7d0b7bfd2..014b530ad2 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -23,7 +23,7 @@ #define MAX_BOOT_DEVS 8 /* Max number of devices that may have a bootindex= */ =20 void s390_ipl_convert_loadparm(char *ascii_lp, uint8_t *ebcdic_lp); -void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp); +void s390_ipl_fmt_loadparm(char *loadparm, char *str, Error **errp); void s390_rebuild_iplb(uint16_t index, IplParameterBlock *iplb); void s390_ipl_update_diag308(IplParameterBlock *iplb); int s390_ipl_prepare_pv_header(Error **errp); diff --git a/include/hw/qdev-properties-system.h b/include/hw/qdev-properti= es-system.h index 7ec37f6316..844af7a200 100644 --- a/include/hw/qdev-properties-system.h +++ b/include/hw/qdev-properties-system.h @@ -3,7 +3,7 @@ =20 #include "hw/qdev-properties.h" =20 -bool qdev_prop_sanitize_s390x_loadparm(uint8_t *loadparm, const char *str, +bool qdev_prop_sanitize_s390x_loadparm(char *loadparm, const char *str, Error **errp); =20 extern const PropertyInfo qdev_prop_chr; diff --git a/include/hw/s390x/s390-virtio-ccw.h b/include/hw/s390x/s390-vir= tio-ccw.h index 996864a34e..9d4e00b0c7 100644 --- a/include/hw/s390x/s390-virtio-ccw.h +++ b/include/hw/s390x/s390-virtio-ccw.h @@ -14,6 +14,7 @@ #include "hw/boards.h" #include "qom/object.h" #include "hw/s390x/sclp.h" +#include "hw/s390x/ipl/qipl.h" =20 #define TYPE_S390_CCW_MACHINE "s390-ccw-machine" =20 @@ -28,7 +29,7 @@ struct S390CcwMachineState { bool aes_key_wrap; bool dea_key_wrap; bool pv; - uint8_t loadparm[8]; + char loadparm[LOADPARM_LEN]; =20 SCLPDevice *sclp; }; diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-sys= tem.c index a61c5ee6dd..e8e9cd8e04 100644 --- a/hw/core/qdev-properties-system.c +++ b/hw/core/qdev-properties-system.c @@ -35,6 +35,7 @@ #include "hw/pci/pci.h" #include "hw/pci/pcie.h" #include "hw/i386/x86.h" +#include "hw/s390x/ipl/qipl.h" #include "util/block-helpers.h" =20 static bool check_prop_still_unset(Object *obj, const char *name, @@ -58,14 +59,15 @@ static bool check_prop_still_unset(Object *obj, const c= har *name, return false; } =20 -bool qdev_prop_sanitize_s390x_loadparm(uint8_t *loadparm, const char *str, +bool qdev_prop_sanitize_s390x_loadparm(char *loadparm, const char *str, Error **errp) { int i, len; =20 len =3D strlen(str); - if (len > 8) { - error_setg(errp, "'loadparm' can only contain up to 8 characters"); + if (len > LOADPARM_LEN) { + error_setg(errp, "'loadparm' can only contain up to %u characters", + LOADPARM_LEN); return false; } =20 diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 30734661ad..6fd3774c7d 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -416,7 +416,7 @@ static uint64_t s390_ipl_map_iplb_chain(IplParameterBlo= ck *iplb_chain) return chain_addr; } =20 -void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp) +void s390_ipl_fmt_loadparm(char *loadparm, char *str, Error **errp) { /* Initialize the loadparm with spaces */ memset(loadparm, ' ', LOADPARM_LEN); @@ -439,8 +439,8 @@ static bool s390_build_iplb(DeviceState *dev_st, IplPar= ameterBlock *iplb) CcwDevice *ccw_dev =3D NULL; SCSIDevice *sd; int devtype; - uint8_t *lp; - g_autofree void *scsi_lp =3D NULL; + char *lp; + g_autofree char *scsi_lp =3D NULL; =20 /* * Currently allow IPL only from CCW devices. diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 8e553487d5..96a09fe170 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -3145,7 +3145,7 @@ static char *scsi_property_get_loadparm(Object *obj, = Error **errp) static void scsi_property_set_loadparm(Object *obj, const char *value, Error **errp) { - void *lp_str; + char *lp_str; =20 if (object_property_get_int(obj, "bootindex", NULL) < 0) { error_setg(errp, "'loadparm' is only valid for boot devices"); --=20 2.45.2 From nobody Sat Nov 23 15:27:46 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::134; envelope-from=philmd@linaro.org; helo=mail-lf1-x134.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1732092853917116600 Coverity reported a 1 byte overrun in scsi_property_set_loadparm (CID 15657462). Since loadparam[] length is known, simply directly allocate it in the device state. Fixes: 429442e52d ("hw: Add 'loadparm' property to scsi disk devices") Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/scsi/scsi-disk.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 96a09fe170..f6d6b7c1ea 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -38,6 +38,7 @@ #include "hw/block/block.h" #include "hw/qdev-properties.h" #include "hw/qdev-properties-system.h" +#include "hw/s390x/ipl/qipl.h" #include "sysemu/dma.h" #include "sysemu/sysemu.h" #include "qemu/cutils.h" @@ -112,7 +113,7 @@ struct SCSIDiskState { char *vendor; char *product; char *device_id; - char *loadparm; /* only for s390x */ + char loadparm[LOADPARM_LEN]; /* only for s390x */ bool tray_open; bool tray_locked; /* @@ -3145,19 +3146,12 @@ static char *scsi_property_get_loadparm(Object *obj= , Error **errp) static void scsi_property_set_loadparm(Object *obj, const char *value, Error **errp) { - char *lp_str; - if (object_property_get_int(obj, "bootindex", NULL) < 0) { error_setg(errp, "'loadparm' is only valid for boot devices"); return; } =20 - lp_str =3D g_malloc0(strlen(value)); - if (!qdev_prop_sanitize_s390x_loadparm(lp_str, value, errp)) { - g_free(lp_str); - return; - } - SCSI_DISK_BASE(obj)->loadparm =3D lp_str; + qdev_prop_sanitize_s390x_loadparm(SCSI_DISK_BASE(obj)->loadparm, value= , errp); } =20 static void scsi_property_add_specifics(DeviceClass *dc) --=20 2.45.2