From 77b8e6fbf9848d651f5cb7508f18ad0971f3ffdb Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Mon, 8 Sep 2025 15:52:02 +0200 Subject: dm-integrity: limit MAX_TAG_SIZE to 255 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 --- drivers/md/dm-integrity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/md/dm-integrity.c') diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index efeee0a873c0..ab96b692e5a3 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -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 -- cgit v1.2.3