diff options
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index a7943f861d68..74a2b444406d 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1805,6 +1805,8 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type) static int restore_curseg_summaries(struct f2fs_sb_info *sbi) { + struct f2fs_journal *sit_j = CURSEG_I(sbi, CURSEG_COLD_DATA)->journal; + struct f2fs_journal *nat_j = CURSEG_I(sbi, CURSEG_HOT_DATA)->journal; int type = CURSEG_HOT_DATA; int err; @@ -1831,6 +1833,11 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi) return err; } + /* sanity check for summary blocks */ + if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES || + sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) + return -EINVAL; + return 0; } |