recover_prepare() in chunk-recover.c alloc memory which only contains sizeof(struct btrfs_super_block). This will cause glibc malloc error after superblock csum is calculated.
Use BTRFS_SUPER_INFO_SIZE to fix the bug. Signed-off-by: Qu Wenruo <quwen...@cn.fujitsu.com> --- chunk-recover.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/chunk-recover.c b/chunk-recover.c index c8badf9..7dfaf82 100644 --- a/chunk-recover.c +++ b/chunk-recover.c @@ -1345,7 +1345,7 @@ static int recover_prepare(struct recover_control *rc, char *path) return -1; } - sb = malloc(sizeof(struct btrfs_super_block)); + sb = malloc(BTRFS_SUPER_INFO_SIZE); if (!sb) { fprintf(stderr, "allocating memory for sb failed.\n"); ret = -ENOMEM; -- 2.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html