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OpenZFS 6314 - buffer overflow in dsl_dataset_name

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Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/6314
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d6160ee
This commit is contained in:
Igor Kozhukhov
2016-06-15 14:28:36 -07:00
committed by Brian Behlendorf
parent 43e52eddb1
commit eca7b76001
41 changed files with 297 additions and 334 deletions
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include/sys/fs/zfs.h
+5 -1
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@@ -67,9 +67,13 @@ typedef enum dmu_objset_type {
#define ZFS_TYPE_DATASET \
(ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT)
/*
* All of these include the terminating NUL byte.
*/
#define ZAP_MAXNAMELEN 256
#define ZAP_MAXVALUELEN (1024 * 8)
#define ZAP_OLDMAXVALUELEN 1024
#define ZFS_MAX_DATASET_NAME_LEN 256
/*
* Dataset properties are identified by these constants and must be added to
@@ -1019,7 +1023,7 @@ typedef enum zfs_ioc {
/*
* zvol ioctl to get dataset name
*/
#define BLKZNAME _IOR(0x12, 125, char[ZFS_MAXNAMELEN])
#define BLKZNAME _IOR(0x12, 125, char[ZFS_MAX_DATASET_NAME_LEN])
/*
* Internal SPA load state. Used by FMA diagnosis engine.