diff options
| author | Gvozden Neskovic <[email protected]> | 2016-08-04 16:23:35 +0200 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2016-08-16 14:53:09 -0700 |
| commit | f0c26069bdf4ec675c840f0932fcfe7d4036d06f (patch) | |
| tree | d8f55e6202142fa2db9f7fcb9adef5173cb169a3 /cmd/zdb | |
| parent | fc897b24b2efafccb5c9e915b81dc5f797673e72 (diff) | |
zdb: fencepost error at zdb_cb.zcb_embedded_histogram[][]
Erroneous access detected by gcc UndefinedBehaviorSanitizer:
`zdb.c:2424:7: runtime error: index 112 out of bounds for type 'uint64_t [112]'`
Fix: increase histogram size by 1 to accommodate all possible sizes.
Signed-off-by: Gvozden Neskovic <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #4934
Issue #4883
Diffstat (limited to 'cmd/zdb')
| -rw-r--r-- | cmd/zdb/zdb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cmd/zdb/zdb.c b/cmd/zdb/zdb.c index 5a196c452..6a076e65d 100644 --- a/cmd/zdb/zdb.c +++ b/cmd/zdb/zdb.c @@ -2354,7 +2354,7 @@ typedef struct zdb_cb { uint64_t zcb_dedup_blocks; uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] - [BPE_PAYLOAD_SIZE]; + [BPE_PAYLOAD_SIZE + 1]; uint64_t zcb_start; uint64_t zcb_lastprint; uint64_t zcb_totalasize; |