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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
commit | 94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch) | |
tree | 9a4eb8cc234b540b0f4b93363109cdd37a20540b /fs/bcachefs/sb-clean.c | |
parent | Adding debian version 6.8.12-1. (diff) | |
download | linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/bcachefs/sb-clean.c')
-rw-r--r-- | fs/bcachefs/sb-clean.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/fs/bcachefs/sb-clean.c b/fs/bcachefs/sb-clean.c index b6bf0ebe7e..194e55b111 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), @@ -171,22 +179,6 @@ fsck_err: return ERR_PTR(ret); } -static struct jset_entry *jset_entry_init(struct jset_entry **end, size_t size) -{ - struct jset_entry *entry = *end; - unsigned u64s = DIV_ROUND_UP(size, sizeof(u64)); - - memset(entry, 0, u64s * sizeof(u64)); - /* - * The u64s field counts from the start of data, ignoring the shared - * fields. - */ - entry->u64s = cpu_to_le16(u64s - 1); - - *end = vstruct_next(*end); - return entry; -} - void bch2_journal_super_entries_add_common(struct bch_fs *c, struct jset_entry **end, u64 journal_seq) @@ -286,6 +278,17 @@ static int bch2_sb_clean_validate(struct bch_sb *sb, return -BCH_ERR_invalid_sb_clean; } + for (struct jset_entry *entry = clean->start; + entry != vstruct_end(&clean->field); + entry = vstruct_next(entry)) { + if ((void *) vstruct_next(entry) > vstruct_end(&clean->field)) { + prt_str(err, "entry type "); + bch2_prt_jset_entry_type(err, le16_to_cpu(entry->type)); + prt_str(err, " overruns end of section"); + return -BCH_ERR_invalid_sb_clean; + } + } + return 0; } @@ -303,6 +306,9 @@ static void bch2_sb_clean_to_text(struct printbuf *out, struct bch_sb *sb, for (entry = clean->start; entry != vstruct_end(&clean->field); entry = vstruct_next(entry)) { + if ((void *) vstruct_next(entry) > vstruct_end(&clean->field)) + break; + if (entry->type == BCH_JSET_ENTRY_btree_keys && !entry->u64s) continue; |