@@ -4774,7 +4774,7 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
char desc[17] = {0};
u32 iounit_pg1_flags;
- strscpy(desc, ioc->manu_pg0.ChipName, sizeof(desc));
+ memtostr(desc, ioc->manu_pg0.ChipName);
ioc_info(ioc, "%s: FWVersion(%02d.%02d.%02d.%02d), ChipRevision(0x%02x)\n",
desc,
(ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
@@ -458,17 +458,13 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc,
goto out;
manufacture_reply = data_out + sizeof(struct rep_manu_request);
- strscpy(edev->vendor_id, manufacture_reply->vendor_id,
- sizeof(edev->vendor_id));
- strscpy(edev->product_id, manufacture_reply->product_id,
- sizeof(edev->product_id));
- strscpy(edev->product_rev, manufacture_reply->product_rev,
- sizeof(edev->product_rev));
+ memtostr(edev->vendor_id, manufacture_reply->vendor_id);
+ memtostr(edev->product_id, manufacture_reply->product_id);
+ memtostr(edev->product_rev, manufacture_reply->product_rev);
edev->level = manufacture_reply->sas_format & 1;
if (edev->level) {
- strscpy(edev->component_vendor_id,
- manufacture_reply->component_vendor_id,
- sizeof(edev->component_vendor_id));
+ memtostr(edev->component_vendor_id,
+ manufacture_reply->component_vendor_id);
tmp = (u8 *)&manufacture_reply->component_id;
edev->component_id = tmp[0] << 8 | tmp[1];
edev->component_revision_id =
The prior strscpy() replacement of strncpy() here expected the manufacture_reply strings to be NUL-terminated, but it is possible they are not, as the code pattern here shows, e.g., edev->vendor_id being exactly 1 character larger than manufacture_reply->vendor_id, and the replaced strncpy() was copying only up to the size of the source character array. Replace this with memtostr(), which is the unambiguous way to convert a maybe not-NUL-terminated character array into a NUL-terminated string. Fixes: b7e9712a02e8 ("scsi: mpt3sas: Replace deprecated strncpy() with strscpy()") Signed-off-by: Kees Cook <keescook@chromium.org> --- Cc: Justin Stitt <justinstitt@google.com> Cc: Sathya Prakash <sathya.prakash@broadcom.com> Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: MPT-FusionLinux.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org --- drivers/scsi/mpt3sas/mpt3sas_base.c | 2 +- drivers/scsi/mpt3sas/mpt3sas_transport.c | 14 +++++--------- 2 files changed, 6 insertions(+), 10 deletions(-)