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SCSI fixes on 20190705 

Two iscsi fixes.  One for an oops in the client which can be triggered
 by the server authentication protocol and the other in the target code
 which causes data corruption.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two iscsi fixes.

  One for an oops in the client which can be triggered by the server
  authentication protocol and the other in the target code which causes
  data corruption"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported
  scsi: target/iblock: Fix overrun in WRITE SAME emulation
This commit is contained in:
Linus Torvalds 2019-07-06 09:56:20 -07:00
parent ceacbc0e14 5dd6c49339
commit 4f8b49092c
2 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/target/iscsi/iscsi_target_auth.c
View File

@ -81,6 +81,12 @@ out:
return CHAP_DIGEST_UNKNOWN;
}
static void chap_close(struct iscsi_conn *conn)
{
kfree(conn->auth_protocol);
conn->auth_protocol = NULL;
}
static struct iscsi_chap *chap_server_open(
struct iscsi_conn *conn,
struct iscsi_node_auth *auth,
@ -118,7 +124,7 @@ static struct iscsi_chap *chap_server_open(
case CHAP_DIGEST_UNKNOWN:
default:
pr_err("Unsupported CHAP_A value\n");
kfree(conn->auth_protocol);
chap_close(conn);
return NULL;
}
@ -133,19 +139,13 @@ static struct iscsi_chap *chap_server_open(
* Generate Challenge.
*/
if (chap_gen_challenge(conn, 1, aic_str, aic_len) < 0) {
kfree(conn->auth_protocol);
chap_close(conn);
return NULL;
}
return chap;
}
static void chap_close(struct iscsi_conn *conn)
{
kfree(conn->auth_protocol);
conn->auth_protocol = NULL;
}
static int chap_server_compute_md5(
struct iscsi_conn *conn,
struct iscsi_node_auth *auth,

2
drivers/target/target_core_iblock.c
View File

@ -502,7 +502,7 @@ iblock_execute_write_same(struct se_cmd *cmd)
/* Always in 512 byte units for Linux/Block */
block_lba += sg->length >> SECTOR_SHIFT;
sectors -= 1;
sectors -= sg->length >> SECTOR_SHIFT;
}
iblock_submit_bios(&list);