fsck.f2fs: drop extent_info to avoid potential wrong access

This patch avoids wrong extent information modified by fixing block addresses.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fsck/fsck.c b/fsck/fsck.c
index bbd4cab..70efce6 100644 (file)
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -722,6 +722,8 @@ skip_blkcnt_fix:
                }
        }
        if (need_fix) {
+               /* drop extent information to avoid potential wrong access */
+               node_blk->i.i_ext.len = 0;
                ret = dev_write_block(node_blk, ni->blk_addr);
                ASSERT(ret >= 0);
        }