Commit 5cbdae10 authored by Andrew Vasquez's avatar Andrew Vasquez Committed by Martin K. Petersen

scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines

Commit e6f77540 ("scsi: qla2xxx: Fix an integer overflow in sysfs
code") incorrectly set 'optrom_region_size' to 'start+size', which can
overflow option-rom boundaries when 'start' is non-zero.  Continue setting
optrom_region_size to the proper adjusted value of 'size'.

Fixes: e6f77540 ("scsi: qla2xxx: Fix an integer overflow in sysfs code")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarAndrew Vasquez <andrewv@marvell.com>
Signed-off-by: default avatarHimanshu Madhani <hmadhani@marvell.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 5da05a26
...@@ -376,7 +376,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj, ...@@ -376,7 +376,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
} }
ha->optrom_region_start = start; ha->optrom_region_start = start;
ha->optrom_region_size = start + size; ha->optrom_region_size = size;
ha->optrom_state = QLA_SREADING; ha->optrom_state = QLA_SREADING;
ha->optrom_buffer = vmalloc(ha->optrom_region_size); ha->optrom_buffer = vmalloc(ha->optrom_region_size);
...@@ -449,7 +449,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj, ...@@ -449,7 +449,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
} }
ha->optrom_region_start = start; ha->optrom_region_start = start;
ha->optrom_region_size = start + size; ha->optrom_region_size = size;
ha->optrom_state = QLA_SWRITING; ha->optrom_state = QLA_SWRITING;
ha->optrom_buffer = vmalloc(ha->optrom_region_size); ha->optrom_buffer = vmalloc(ha->optrom_region_size);
......
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