diff options
| -rw-r--r-- | block/blklogwrites.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/block/blklogwrites.c b/block/blklogwrites.c index 63bf6b34a9..efa2c7a66a 100644 --- a/block/blklogwrites.c +++ b/block/blklogwrites.c @@ -89,7 +89,10 @@ static inline uint32_t blk_log_writes_log2(uint32_t value) static inline bool blk_log_writes_sector_size_valid(uint32_t sector_size) { - return sector_size < (1ull << 24) && is_power_of_2(sector_size); + return is_power_of_2(sector_size) && + sector_size >= sizeof(struct log_write_super) && + sector_size >= sizeof(struct log_write_entry) && + sector_size < (1ull << 24); } static uint64_t blk_log_writes_find_cur_log_sector(BdrvChild *log, |