raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-06 01:49:46 +00:00
Code Issues Projects Releases Wiki Activity

dm-integrity: limit MAX_TAG_SIZE to 255

Browse Source 
[ Upstream commit 77b8e6fbf9 ]

MAX_TAG_SIZE was 0x1a8 and it may be truncated in the "bi->metadata_size
= ic->tag_size" assignment. We need to limit it to 255.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mikulas Patocka
2025-09-08 15:52:02 +02:00
committed by Greg Kroah-Hartman
parent 08fcde8b56
commit 93936f2de5
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/md/dm-integrity.c
View File

@@ -133,7 +133,7 @@ struct journal_sector {
commit_id_t commit_id;
};
#define MAX_TAG_SIZE (JOURNAL_SECTOR_DATA - JOURNAL_MAC_PER_SECTOR - offsetof(struct journal_entry, last_bytes[MAX_SECTORS_PER_BLOCK]))
#define MAX_TAG_SIZE 255
#define METADATA_PADDING_SECTORS 8