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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/dsl_dir.h
+3 -4
View File
@@ -112,7 +112,7 @@ struct dsl_dir {
int64_t dd_space_towrite[TXG_SIZE];
/* protected by dd_lock; keep at end of struct for better locality */
char dd_myname[MAXNAMELEN];
char dd_myname[ZFS_MAX_DATASET_NAME_LEN];
};
static inline dsl_dir_phys_t *
@@ -176,11 +176,10 @@ boolean_t dsl_dir_is_zapified(dsl_dir_t *dd);
#ifdef ZFS_DEBUG
#define dprintf_dd(dd, fmt, ...) do { \
if (zfs_flags & ZFS_DEBUG_DPRINTF) { \
char *__ds_name = kmem_alloc(MAXNAMELEN + strlen(MOS_DIR_NAME) + 1, \
KM_SLEEP); \
char *__ds_name = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN, KM_SLEEP); \
dsl_dir_name(dd, __ds_name); \
dprintf("dd=%s " fmt, __ds_name, __VA_ARGS__); \
kmem_free(__ds_name, MAXNAMELEN + strlen(MOS_DIR_NAME) + 1); \
kmem_free(__ds_name, ZFS_MAX_DATASET_NAME_LEN); \
} \
_NOTE(CONSTCOND) } while (0)
#else