mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 16:01:44 -04:00
Code Issues Packages Projects Releases Wiki Activity

dm vdo: add upfront validation for logical size

Browse Source 
Add a validation check that the logical size passed via the table line
does not exceed MAXIMUM_VDO_LOGICAL_BLOCKS.

Signed-off-by: Bruce Johnston <bjohnsto@redhat.com>
Reviewed-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Bruce Johnston
2026-03-24 14:06:47 -04:00
committed by Mikulas Patocka
parent 2fb98e4170
commit beced130a3
1 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/md/dm-vdo/dm-vdo-target.c
View File

@@ -792,6 +792,12 @@ static int parse_device_config(int argc, char **argv, struct dm_target *ti,
struct device_config *config = NULL;
int result;
if (logical_bytes > (MAXIMUM_VDO_LOGICAL_BLOCKS * VDO_BLOCK_SIZE)) {
handle_parse_error(config, error_ptr,
"Logical size exceeds the maximum");
return VDO_BAD_CONFIGURATION;
}
if ((logical_bytes % VDO_BLOCK_SIZE) != 0) {
handle_parse_error(config, error_ptr,
"Logical size must be a multiple of 4096");