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| author | Mike Christie <michaelc@cs.wisc.edu> | 2012-01-26 21:13:10 -0600 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 08:09:00 -0600 |
| commit | 1304be5fe0efb42b7ec6a50dd8e1a9bce2adae17 (patch) | |
| tree | bc3d95ab7c1cc5d779df4696aaa138b7cbd89825 /include/scsi | |
| parent | df1c7baba1b7b3053950f3845a6575aca47ba9ce (diff) | |
| download | op-kernel-dev-1304be5fe0efb42b7ec6a50dd8e1a9bce2adae17.zip op-kernel-dev-1304be5fe0efb42b7ec6a50dd8e1a9bce2adae17.tar.gz | |
[SCSI] libiscsi_tcp: fix max_r2t manipulation
Problem description from Xi Wang:
A large max_r2t could lead to integer overflow in subsequent call to
iscsi_tcp_r2tpool_alloc(), allocating a smaller buffer than expected
and leading to out-of-bounds write.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/libiscsi.h | 2 | ||||
| -rw-r--r-- | include/scsi/libiscsi_tcp.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 2e42e9a..6e33386 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -268,7 +268,7 @@ struct iscsi_session { int lu_reset_timeout; int tgt_reset_timeout; int initial_r2t_en; - unsigned max_r2t; + unsigned short max_r2t; int imm_data_en; unsigned first_burst; unsigned max_burst; diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h index ac0cc1d..215469a 100644 --- a/include/scsi/libiscsi_tcp.h +++ b/include/scsi/libiscsi_tcp.h @@ -128,7 +128,7 @@ extern void iscsi_tcp_conn_teardown(struct iscsi_cls_conn *cls_conn); /* misc helpers */ extern int iscsi_tcp_r2tpool_alloc(struct iscsi_session *session); extern void iscsi_tcp_r2tpool_free(struct iscsi_session *session); - +extern int iscsi_tcp_set_max_r2t(struct iscsi_conn *conn, char *buf); extern void iscsi_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats); #endif /* LIBISCSI_TCP_H */ |
