From: Azeem Shaikh <azeemshaikh38@gmail.com>
Date: Tue, 16 May 2023 02:54:04 +0000
Subject: scsi: qla2xxx: Replace all non-returning strlcpy() with strscpy()
Patch-mainline: v6.5-rc1
Git-commit: 37f1663c91934f664fb850306708094a324c227c
References: bsc#1211960
strlcpy() reads the entire source buffer first. This read may exceed the
destination size limit. This is both inefficient and can lead to linear
read overflows if a source string is not NUL-terminated [1]. In an effort
to remove strlcpy() completely [2], replace strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Link: https://lore.kernel.org/r/20230516025404.2843867-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/qla2xxx/qla_init.c | 8 ++++----
drivers/scsi/qla2xxx/qla_mr.c | 20 ++++++++++----------
2 files changed, 14 insertions(+), 14 deletions(-)
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -5087,7 +5087,7 @@ qla2x00_set_model_info(scsi_qla_host_t *
if (use_tbl &&
ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES)
- strlcpy(ha->model_desc,
+ strscpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc));
} else {
@@ -5095,14 +5095,14 @@ qla2x00_set_model_info(scsi_qla_host_t *
if (use_tbl &&
ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
index < QLA_MODEL_NAMES) {
- strlcpy(ha->model_number,
+ strscpy(ha->model_number,
qla2x00_model_name[index * 2],
sizeof(ha->model_number));
- strlcpy(ha->model_desc,
+ strscpy(ha->model_desc,
qla2x00_model_name[index * 2 + 1],
sizeof(ha->model_desc));
} else {
- strlcpy(ha->model_number, def,
+ strscpy(ha->model_number, def,
sizeof(ha->model_number));
}
}
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -692,7 +692,7 @@ qlafx00_pci_info_str(struct scsi_qla_hos
struct qla_hw_data *ha = vha->hw;
if (pci_is_pcie(ha->pdev))
- strlcpy(str, "PCIe iSA", str_len);
+ strscpy(str, "PCIe iSA", str_len);
return str;
}
@@ -1874,21 +1874,21 @@ qlafx00_fx_disc(scsi_qla_host_t *vha, fc
phost_info = &preg_hsi->hsi;
memset(preg_hsi, 0, sizeof(struct register_host_info));
phost_info->os_type = OS_TYPE_LINUX;
- strlcpy(phost_info->sysname, p_sysid->sysname,
+ strscpy(phost_info->sysname, p_sysid->sysname,
sizeof(phost_info->sysname));
- strlcpy(phost_info->nodename, p_sysid->nodename,
+ strscpy(phost_info->nodename, p_sysid->nodename,
sizeof(phost_info->nodename));
if (!strcmp(phost_info->nodename, "(none)"))
ha->mr.host_info_resend = true;
- strlcpy(phost_info->release, p_sysid->release,
+ strscpy(phost_info->release, p_sysid->release,
sizeof(phost_info->release));
- strlcpy(phost_info->version, p_sysid->version,
+ strscpy(phost_info->version, p_sysid->version,
sizeof(phost_info->version));
- strlcpy(phost_info->machine, p_sysid->machine,
+ strscpy(phost_info->machine, p_sysid->machine,
sizeof(phost_info->machine));
- strlcpy(phost_info->domainname, p_sysid->domainname,
+ strscpy(phost_info->domainname, p_sysid->domainname,
sizeof(phost_info->domainname));
- strlcpy(phost_info->hostdriver, QLA2XXX_VERSION,
+ strscpy(phost_info->hostdriver, QLA2XXX_VERSION,
sizeof(phost_info->hostdriver));
preg_hsi->utc = (uint64_t)ktime_get_real_seconds();
ql_dbg(ql_dbg_init, vha, 0x0149,
@@ -1933,9 +1933,9 @@ qlafx00_fx_disc(scsi_qla_host_t *vha, fc
if (fx_type == FXDISC_GET_CONFIG_INFO) {
struct config_info_data *pinfo =
(struct config_info_data *) fdisc->u.fxiocb.rsp_addr;
- strlcpy(vha->hw->model_number, pinfo->model_num,
+ strscpy(vha->hw->model_number, pinfo->model_num,
ARRAY_SIZE(vha->hw->model_number));
- strlcpy(vha->hw->model_desc, pinfo->model_description,
+ strscpy(vha->hw->model_desc, pinfo->model_description,
ARRAY_SIZE(vha->hw->model_desc));
memcpy(&vha->hw->mr.symbolic_name, pinfo->symbolic_name,
sizeof(vha->hw->mr.symbolic_name));