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In preparation for FORTIFY_SOURCE performing run-time destination buffer
bounds checking for memcpy(), specify the destination output buffer
explicitly, instead of asking memcpy() to write past the end of what looked
like a fixed-size object. Silences future run-time warning:
memcpy: detected field-spanning write (size 80) of single field "trc + 1" (size 64)
There is no binary code output differences from this change.
Link: https://lore.kernel.org/r/20220901205729.2260982-1-keescook@chromium.org
Cc: Bradley Grove <linuxdrivers@attotech.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), avoid intentionally writing across
neighboring array fields.
Remove old-style 1-byte array in favor of a flexible array[1] to avoid
future false-positive cross-field memcpy() warning in:
esas2r_vda.c:
memcpy(vi->cmd.gsv.version_info, esas2r_vdaioctl_versions, ...)
The change in struct size doesn't change other structure sizes (it is
already maxed out to 256 bytes, for example here:
union {
struct atto_ioctl_vda_scsi_cmd scsi;
struct atto_ioctl_vda_flash_cmd flash;
struct atto_ioctl_vda_diag_cmd diag;
struct atto_ioctl_vda_cli_cmd cli;
struct atto_ioctl_vda_smp_cmd smp;
struct atto_ioctl_vda_cfg_cmd cfg;
struct atto_ioctl_vda_mgt_cmd mgt;
struct atto_ioctl_vda_gsv_cmd gsv;
u8 cmd_info[256];
} cmd;
No sizes are calculated using the enclosing structure, so no other
updates are needed.
Link: https://lore.kernel.org/r/20210528181337.792268-3-keescook@chromium.org
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This is a new driver for ATTO Technology's ExpressSAS series of hardware RAID
adapters. It supports the following adapters:
- ExpressSAS R60F
- ExpressSAS R680
- ExpressSAS R608
- ExpressSAS R644
Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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