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Date: Mon, 15 Aug 2022 16:46:13 -0500 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Kashyap Desai <kashyap.desai@...adcom.com>, Sumit Saxena <sumit.saxena@...adcom.com>, Shivasharan S <shivasharan.srikanteshwara@...adcom.com>, "James E.J. Bottomley" <jejb@...ux.ibm.com>, "Martin K. Petersen" <martin.petersen@...cle.com>, Kees Cook <keescook@...omium.org>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-hardening@...r.kernel.org Subject: [PATCH v3 3/6] scsi: megaraid_sas: Replace one-element array with flexible-array member in MR_DRV_RAID_MAP One-element arrays are deprecated, and we are replacing them with flexible array members, instead. So, replace one-element array with flexible-array member in struct MR_DRV_RAID_MAP and refactor the code accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy(). Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Enhanced-by: Kees Cook <keescook@...omium.org> # Change in struct MR_DRV_RAID_MAP_ALL Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> --- Changes in v3: - Revert use of flex_array_size() helper. - Modify MR_DRV_RAID_MAP_ALL structure. Changes in v2: - None. drivers/scsi/megaraid/megaraid_sas_fusion.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index 66e13b74fcdc..df92d4369e04 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -1182,7 +1182,7 @@ struct MR_DRV_RAID_MAP { devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES_DYN]; u16 ldTgtIdToLd[MAX_LOGICAL_DRIVES_DYN]; struct MR_ARRAY_INFO arMapInfo[MAX_API_ARRAYS_DYN]; - struct MR_LD_SPAN_MAP ldSpanMap[1]; + struct MR_LD_SPAN_MAP ldSpanMap[]; }; @@ -1193,7 +1193,7 @@ struct MR_DRV_RAID_MAP { struct MR_DRV_RAID_MAP_ALL { struct MR_DRV_RAID_MAP raidMap; - struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN - 1]; + struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES_DYN]; } __packed; -- 2.34.1
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