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-rw-r--r--fs/bcachefs/sb-clean.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/bcachefs/sb-clean.c b/fs/bcachefs/sb-clean.c
index 5980ba2563fe..35ca3f138de6 100644
--- a/fs/bcachefs/sb-clean.c
+++ b/fs/bcachefs/sb-clean.c
@@ -29,6 +29,14 @@ int bch2_sb_clean_validate_late(struct bch_fs *c, struct bch_sb_field_clean *cle
for (entry = clean->start;
entry < (struct jset_entry *) vstruct_end(&clean->field);
entry = vstruct_next(entry)) {
+ if (vstruct_end(entry) > vstruct_end(&clean->field)) {
+ bch_err(c, "journal entry (u64s %u) overran end of superblock clean section (u64s %u) by %zu",
+ le16_to_cpu(entry->u64s), le32_to_cpu(clean->field.u64s),
+ (u64 *) vstruct_end(entry) - (u64 *) vstruct_end(&clean->field));
+ bch2_sb_error_count(c, BCH_FSCK_ERR_sb_clean_entry_overrun);
+ return -BCH_ERR_fsck_repair_unimplemented;
+ }
+
ret = bch2_journal_entry_validate(c, NULL, entry,
le16_to_cpu(c->disk_sb.sb->version),
BCH_SB_BIG_ENDIAN(c->disk_sb.sb),