The iv_offset in the mapping table of crypt target is a 64bit number
when iv mode is plain64 or plain64be. It will be assigned to iv_offset of
struct crypt_config, cc_sector of struct convert_context and iv_sector of
struct dm_crypt_request. These structures members are defined as a sector_t.
But sector_t is 32bit when CONFIG_LBDAF is not set in 32bit kernel. In this
situation sector_t is not big enough to store the 64bit iv_offset.
Signed-off-by: AliOS system security <alios_sys_security@xxxxxxxxxxxxxxxxx>
---
drivers/md/dm-crypt.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index b8eec51..49be7a6 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -49,7 +49,7 @@ struct convert_context {
struct bio *bio_out;
struct bvec_iter iter_in;
struct bvec_iter iter_out;
- sector_t cc_sector;
+ unsigned long long cc_sector;
atomic_t cc_pending;
union {
struct skcipher_request *req;
@@ -81,7 +81,7 @@ struct dm_crypt_request {
struct convert_context *ctx;
struct scatterlist sg_in[4];
struct scatterlist sg_out[4];
- sector_t iv_sector;
+ unsigned long long iv_sector;
};
struct crypt_config;
@@ -160,7 +160,7 @@ struct crypt_config {
struct iv_lmk_private lmk;
struct iv_tcw_private tcw;
} iv_gen_private;
- sector_t iv_offset;
+ unsigned long long iv_offset;
unsigned int iv_size;
unsigned short int sector_size;
unsigned char sector_shift;
--
2.7.4
--
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