From: Tianfei Zhang Date: Fri, 21 Jun 2019 08:40:13 +0000 (+0800) Subject: raw/ifpga/base: fix use of untrusted scalar value X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8234347f999daed5ddcbfd659260fed79abb537a;p=dpdk.git raw/ifpga/base: fix use of untrusted scalar value Add checking the buffer size and use const char * for buffer declaration. Coverity issue: 279449 Fixes: ef1e8ede ("raw/ifpga: add Intel FPGA bus rawdev driver") Cc: stable@dpdk.org Signed-off-by: Tianfei Zhang Acked-by: Rosen Xu --- diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.c b/drivers/raw/ifpga_rawdev/base/ifpga_api.c index 3ddbcdc2a5..53d101daf1 100644 --- a/drivers/raw/ifpga_rawdev/base/ifpga_api.c +++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.c @@ -182,7 +182,7 @@ struct opae_bridge_ops ifpga_br_ops = { }; /* Manager APIs */ -static int ifpga_mgr_flash(struct opae_manager *mgr, int id, void *buf, +static int ifpga_mgr_flash(struct opae_manager *mgr, int id, const char *buf, u32 size, u64 *status) { struct ifpga_fme_hw *fme = mgr->data; @@ -324,7 +324,7 @@ struct opae_adapter_ops ifpga_adapter_ops = { * - 0: Success, partial reconfiguration finished. * - <0: Error code returned in partial reconfiguration. **/ -int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, +int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size, u64 *status) { if (!is_valid_port_id(hw, port_id)) diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_api.h b/drivers/raw/ifpga_rawdev/base/ifpga_api.h index 4a247698c8..051ab8276e 100644 --- a/drivers/raw/ifpga_rawdev/base/ifpga_api.h +++ b/drivers/raw/ifpga_rawdev/base/ifpga_api.h @@ -23,7 +23,7 @@ int ifpga_set_irq(struct ifpga_hw *hw, u32 fiu_id, u32 port_id, u32 feature_id, void *irq_set); /* FME APIs */ -int ifpga_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, +int ifpga_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size, u64 *status); #endif /* _IFPGA_API_H_ */ diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h index bb9fcc2893..e243d42739 100644 --- a/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h +++ b/drivers/raw/ifpga_rawdev/base/ifpga_feature_dev.h @@ -149,7 +149,7 @@ static inline int fpga_port_reset(struct ifpga_port_hw *port) return ret; } -int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, +int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, u32 size, u64 *status); int fme_get_prop(struct ifpga_fme_hw *fme, struct feature_prop *prop); diff --git a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c index efa72660f1..9997942d25 100644 --- a/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c +++ b/drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c @@ -223,8 +223,8 @@ static int fpga_pr_buf_load(struct ifpga_fme_hw *fme_dev, return 0; } -static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, - u64 *status) +static int fme_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, + u32 size, u64 *status) { struct feature_fme_header *fme_hdr; struct feature_fme_capability fme_capability; @@ -269,7 +269,7 @@ static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, /* Disable Port before PR */ fpga_port_disable(port); - ret = fpga_pr_buf_load(fme, &info, (void *)buffer, size); + ret = fpga_pr_buf_load(fme, &info, buffer, size); *status = info.pr_err; @@ -280,27 +280,32 @@ static int fme_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, return ret; } -int do_pr(struct ifpga_hw *hw, u32 port_id, void *buffer, u32 size, u64 *status) +int do_pr(struct ifpga_hw *hw, u32 port_id, const char *buffer, + u32 size, u64 *status) { - struct bts_header *bts_hdr; - void *buf; + const struct bts_header *bts_hdr; + const char *buf; struct ifpga_port_hw *port; int ret; + u32 header_size; if (!buffer || size == 0) { dev_err(hw, "invalid parameter\n"); return -EINVAL; } - bts_hdr = (struct bts_header *)buffer; + bts_hdr = (const struct bts_header *)buffer; if (is_valid_bts(bts_hdr)) { dev_info(hw, "this is a valid bitsteam..\n"); - size -= (sizeof(struct bts_header) + - bts_hdr->metadata_len); - buf = (u8 *)buffer + sizeof(struct bts_header) + - bts_hdr->metadata_len; + header_size = sizeof(struct bts_header) + + bts_hdr->metadata_len; + if (size < header_size) + return -EINVAL; + size -= header_size; + buf = buffer + header_size; } else { + dev_err(hw, "this is an invalid bitstream..\n"); return -EINVAL; } diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c index 0e117d05e2..8964e79849 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.c +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.c @@ -244,8 +244,8 @@ opae_manager_alloc(const char *name, struct opae_manager_ops *ops, * * Return: 0 on success, otherwise error code. */ -int opae_manager_flash(struct opae_manager *mgr, int id, void *buf, u32 size, - u64 *status) +int opae_manager_flash(struct opae_manager *mgr, int id, const char *buf, + u32 size, u64 *status) { if (!mgr) return -EINVAL; diff --git a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h index 383e751cbe..63405a4719 100644 --- a/drivers/raw/ifpga_rawdev/base/opae_hw_api.h +++ b/drivers/raw/ifpga_rawdev/base/opae_hw_api.h @@ -44,7 +44,7 @@ struct opae_manager { /* FIXME: add more management ops, e.g power/thermal and etc */ struct opae_manager_ops { - int (*flash)(struct opae_manager *mgr, int id, void *buffer, + int (*flash)(struct opae_manager *mgr, int id, const char *buffer, u32 size, u64 *status); int (*get_eth_group_region_info)(struct opae_manager *mgr, struct opae_eth_group_region_info *info); @@ -74,7 +74,7 @@ struct opae_manager * opae_manager_alloc(const char *name, struct opae_manager_ops *ops, struct opae_manager_networking_ops *network_ops, void *data); #define opae_manager_free(mgr) opae_free(mgr) -int opae_manager_flash(struct opae_manager *mgr, int acc_id, void *buf, +int opae_manager_flash(struct opae_manager *mgr, int acc_id, const char *buf, u32 size, u64 *status); int opae_manager_get_eth_group_region_info(struct opae_manager *mgr, u8 group_id, struct opae_eth_group_region_info *info); diff --git a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c index 41be1a205c..01aa917dec 100644 --- a/drivers/raw/ifpga_rawdev/ifpga_rawdev.c +++ b/drivers/raw/ifpga_rawdev/ifpga_rawdev.c @@ -225,7 +225,7 @@ ifpga_rawdev_reset(struct rte_rawdev *dev) } static int -fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, u64 *buffer, u32 size, +fpga_pr(struct rte_rawdev *raw_dev, u32 port_id, const char *buffer, u32 size, u64 *status) { @@ -296,6 +296,11 @@ rte_fpga_do_pr(struct rte_rawdev *rawdev, int port_id, goto close_fd; } buffer_size = file_stat.st_size; + if (buffer_size <= 0) { + ret = -EINVAL; + goto close_fd; + } + IFPGA_RAWDEV_PMD_INFO("bitstream file size: %zu\n", buffer_size); buffer = rte_malloc(NULL, buffer_size, 0); if (!buffer) {