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| author | Mikulas Patocka <mpatocka@redhat.com> | 2025-09-08 15:52:02 +0200 |
|---|---|---|
| committer | Mikulas Patocka <mpatocka@redhat.com> | 2025-09-08 15:57:04 +0200 |
| commit | 77b8e6fbf9848d651f5cb7508f18ad0971f3ffdb (patch) | |
| tree | 358722f4a97ea5653633fb2ae8d220910190188f | |
| parent | 1071d560afb4c245c2076494226df47db5a35708 (diff) | |
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 <mpatocka@redhat.com>
| -rw-r--r-- | drivers/md/dm-integrity.c | 2 |
1 files changed, 1 insertions, 1 deletions
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 |