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| author | Mikulas Patocka <mpatocka@redhat.com> | 2025-09-08 15:52:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 12:56:21 +0200 |
| commit | 4b91d0c5781a48639b13071f2d8df8efff320d4d (patch) | |
| tree | 0aa810e9c82c633cab039ec809badbc87d72dc36 | |
| parent | 7f7187118bb5702f21516b8e8994300b51ecf0fd (diff) | |
| download | linux-4b91d0c5781a48639b13071f2d8df8efff320d4d.tar.gz linux-4b91d0c5781a48639b13071f2d8df8efff320d4d.tar.bz2 linux-4b91d0c5781a48639b13071f2d8df8efff320d4d.zip | |
dm-integrity: limit MAX_TAG_SIZE to 255
[ Upstream commit 77b8e6fbf9848d651f5cb7508f18ad0971f3ffdb ]
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>
| -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 0bd76f8d4dc6..6442d41622ef 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -129,7 +129,7 @@ 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 |