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scsi: bfa: Replace all non-returning strlcpy() with strscpy()

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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/20230516013345.723623-1-azeemshaikh38@gmail.com
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Azeem Shaikh 2023-05-16 01:33:45 +00:00 committed by Martin K. Petersen
parent 8759924ddb
commit 973464fded
9 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/bfa/bfa_fcbuild.c
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@ -1134,7 +1134,7 @@ fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
memset(rspnid, 0, sizeof(struct fcgs_rspnid_req_s));
rspnid->dap = s_id;
strlcpy(rspnid->spn, name, sizeof(rspnid->spn));
strscpy(rspnid->spn, name, sizeof(rspnid->spn));
rspnid->spn_len = (u8) strlen(rspnid->spn);
return sizeof(struct fcgs_rspnid_req_s) + sizeof(struct ct_hdr_s);
@ -1155,7 +1155,7 @@ fc_rsnn_nn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
rsnn_nn->node_name = node_name;
strlcpy(rsnn_nn->snn, name, sizeof(rsnn_nn->snn));
strscpy(rsnn_nn->snn, name, sizeof(rsnn_nn->snn));
rsnn_nn->snn_len = (u8) strlen(rsnn_nn->snn);
return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);

4
drivers/scsi/bfa/bfa_fcs.c
View File

@ -761,7 +761,7 @@ bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
/* Model name/number */
strlcpy(port_cfg->sym_name.symname, model,
strscpy(port_cfg->sym_name.symname, model,
BFA_SYMNAME_MAXLEN);
strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
BFA_SYMNAME_MAXLEN);
@ -822,7 +822,7 @@ bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
/* Model name/number */
strlcpy(port_cfg->node_sym_name.symname, model,
strscpy(port_cfg->node_sym_name.symname, model,
BFA_SYMNAME_MAXLEN);
strlcat(port_cfg->node_sym_name.symname,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,

20
drivers/scsi/bfa/bfa_fcs_lport.c
View File

@ -2642,10 +2642,10 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
bfa_ioc_get_adapter_fw_ver(&port->fcs->bfa->ioc,
hba_attr->fw_version);
strlcpy(hba_attr->driver_version, (char *)driver_info->version,
strscpy(hba_attr->driver_version, (char *)driver_info->version,
sizeof(hba_attr->driver_version));
strlcpy(hba_attr->os_name, driver_info->host_os_name,
strscpy(hba_attr->os_name, driver_info->host_os_name,
sizeof(hba_attr->os_name));
/*
@ -2663,13 +2663,13 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi,
bfa_fcs_fdmi_get_portattr(fdmi, &fcs_port_attr);
hba_attr->max_ct_pyld = fcs_port_attr.max_frm_size;
strlcpy(hba_attr->node_sym_name.symname,
strscpy(hba_attr->node_sym_name.symname,
port->port_cfg.node_sym_name.symname, BFA_SYMNAME_MAXLEN);
strcpy(hba_attr->vendor_info, "QLogic");
hba_attr->num_ports =
cpu_to_be32(bfa_ioc_get_nports(&port->fcs->bfa->ioc));
hba_attr->fabric_name = port->fabric->lps->pr_nwwn;
strlcpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
strscpy(hba_attr->bios_ver, hba_attr->option_rom_ver, BFA_VERSION_LEN);
}
@ -2736,19 +2736,19 @@ bfa_fcs_fdmi_get_portattr(struct bfa_fcs_lport_fdmi_s *fdmi,
/*
* OS device Name
*/
strlcpy(port_attr->os_device_name, driver_info->os_device_name,
strscpy(port_attr->os_device_name, driver_info->os_device_name,
sizeof(port_attr->os_device_name));
/*
* Host name
*/
strlcpy(port_attr->host_name, driver_info->host_machine_name,
strscpy(port_attr->host_name, driver_info->host_machine_name,
sizeof(port_attr->host_name));
port_attr->node_name = bfa_fcs_lport_get_nwwn(port);
port_attr->port_name = bfa_fcs_lport_get_pwwn(port);
strlcpy(port_attr->port_sym_name.symname,
strscpy(port_attr->port_sym_name.symname,
bfa_fcs_lport_get_psym_name(port).symname, BFA_SYMNAME_MAXLEN);
bfa_fcs_lport_get_attr(port, &lport_attr);
port_attr->port_type = cpu_to_be32(lport_attr.port_type);
@ -3229,7 +3229,7 @@ bfa_fcs_lport_ms_gmal_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
rsp_str[gmal_entry->len-1] = 0;
/* copy IP Address to fabric */
strlcpy(bfa_fcs_lport_get_fabric_ipaddr(port),
strscpy(bfa_fcs_lport_get_fabric_ipaddr(port),
gmal_entry->ip_addr,
BFA_FCS_FABRIC_IPADDR_SZ);
break;
@ -4667,7 +4667,7 @@ bfa_fcs_lport_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
* to that of the base port.
*/
strlcpy(symbl,
strscpy(symbl,
(char *)&(bfa_fcs_lport_get_psym_name
(bfa_fcs_get_base_port(port->fcs))),
sizeof(symbl));
@ -5194,7 +5194,7 @@ bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
* For Vports, we append the vport's port symbolic name
* to that of the base port.
*/
strlcpy(symbl, (char *)&(bfa_fcs_lport_get_psym_name
strscpy(symbl, (char *)&(bfa_fcs_lport_get_psym_name
(bfa_fcs_get_base_port(port->fcs))),
sizeof(symbl));

2
drivers/scsi/bfa/bfa_ioc.c
View File

@ -2788,7 +2788,7 @@ void
bfa_ioc_get_adapter_manufacturer(struct bfa_ioc_s *ioc, char *manufacturer)
{
memset((void *)manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
strlcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
strscpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
}
void

2
drivers/scsi/bfa/bfa_svc.c
View File

@ -330,7 +330,7 @@ bfa_plog_str(struct bfa_plog_s *plog, enum bfa_plog_mid mid,
lp.eid = event;
lp.log_type = BFA_PL_LOG_TYPE_STRING;
lp.misc = misc;
strlcpy(lp.log_entry.string_log, log_str,
strscpy(lp.log_entry.string_log, log_str,
BFA_PL_STRING_LOG_SZ);
lp.log_entry.string_log[BFA_PL_STRING_LOG_SZ - 1] = '\0';
bfa_plog_add(plog, &lp);

10
drivers/scsi/bfa/bfad.c
View File

@ -965,19 +965,19 @@ bfad_start_ops(struct bfad_s *bfad) {
/* Fill the driver_info info to fcs*/
memset(&driver_info, 0, sizeof(driver_info));
strlcpy(driver_info.version, BFAD_DRIVER_VERSION,
strscpy(driver_info.version, BFAD_DRIVER_VERSION,
sizeof(driver_info.version));
if (host_name)
strlcpy(driver_info.host_machine_name, host_name,
strscpy(driver_info.host_machine_name, host_name,
sizeof(driver_info.host_machine_name));
if (os_name)
strlcpy(driver_info.host_os_name, os_name,
strscpy(driver_info.host_os_name, os_name,
sizeof(driver_info.host_os_name));
if (os_patch)
strlcpy(driver_info.host_os_patch, os_patch,
strscpy(driver_info.host_os_patch, os_patch,
sizeof(driver_info.host_os_patch));
strlcpy(driver_info.os_device_name, bfad->pci_name,
strscpy(driver_info.os_device_name, bfad->pci_name,
sizeof(driver_info.os_device_name));
/* FCS driver info init */

2
drivers/scsi/bfa/bfad_attr.c
View File

@ -834,7 +834,7 @@ bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
char symname[BFA_SYMNAME_MAXLEN];
bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
strlcpy(symname, port_attr.port_cfg.sym_name.symname,
strscpy(symname, port_attr.port_cfg.sym_name.symname,
BFA_SYMNAME_MAXLEN);
return sysfs_emit(buf, "%s\n", symname);
}

4
drivers/scsi/bfa/bfad_bsg.c
View File

@ -119,7 +119,7 @@ bfad_iocmd_ioc_get_attr(struct bfad_s *bfad, void *cmd)
/* fill in driver attr info */
strcpy(iocmd->ioc_attr.driver_attr.driver, BFAD_DRIVER_NAME);
strlcpy(iocmd->ioc_attr.driver_attr.driver_ver,
strscpy(iocmd->ioc_attr.driver_attr.driver_ver,
BFAD_DRIVER_VERSION, BFA_VERSION_LEN);
strcpy(iocmd->ioc_attr.driver_attr.fw_ver,
iocmd->ioc_attr.adapter_attr.fw_ver);
@ -307,7 +307,7 @@ bfad_iocmd_port_get_attr(struct bfad_s *bfad, void *cmd)
iocmd->attr.port_type = port_attr.port_type;
iocmd->attr.loopback = port_attr.loopback;
iocmd->attr.authfail = port_attr.authfail;
strlcpy(iocmd->attr.port_symname.symname,
strscpy(iocmd->attr.port_symname.symname,
port_attr.port_cfg.sym_name.symname,
sizeof(iocmd->attr.port_symname.symname));

2
drivers/scsi/bfa/bfad_im.c
View File

@ -1046,7 +1046,7 @@ bfad_fc_host_init(struct bfad_im_port_s *im_port)
/* For fibre channel services type 0x20 */
fc_host_supported_fc4s(host)[7] = 1;
strlcpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname,
strscpy(symname, bfad->bfa_fcs.fabric.bport.port_cfg.sym_name.symname,
BFA_SYMNAME_MAXLEN);
sprintf(fc_host_symbolic_name(host), "%s", symname);