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| author | Max Krummenacher <max.krummenacher@toradex.com> | 2021-10-16 13:04:24 +0200 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2021-10-16 13:04:24 +0200 |
| commit | f8e718054f4421d11638e370b933ccc6c77466ed (patch) | |
| tree | 973ff8cb8aed7d8e4da6a194456ddc01c206b7de /fs/reiserfs/journal.c | |
| parent | d900385139e5aa8d584dee92c87bb85d0226253e (diff) | |
| parent | 1392fe82d7fba00ba4a8e01968935f2b2085d5a4 (diff) | |
Merge tag 'v4.4.288' into toradex_vf_4.4
This is the 4.4.288 stable release
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'fs/reiserfs/journal.c')
| -rw-r--r-- | fs/reiserfs/journal.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 00985f9db9f7..6a0fa0cdc1ed 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -2770,6 +2770,20 @@ int journal_init(struct super_block *sb, const char *j_dev_name, goto free_and_return; } + /* + * Sanity check to see if journal first block is correct. + * If journal first block is invalid it can cause + * zeroing important superblock members. + */ + if (!SB_ONDISK_JOURNAL_DEVICE(sb) && + SB_ONDISK_JOURNAL_1st_BLOCK(sb) < SB_JOURNAL_1st_RESERVED_BLOCK(sb)) { + reiserfs_warning(sb, "journal-1393", + "journal 1st super block is invalid: 1st reserved block %d, but actual 1st block is %d", + SB_JOURNAL_1st_RESERVED_BLOCK(sb), + SB_ONDISK_JOURNAL_1st_BLOCK(sb)); + goto free_and_return; + } + if (journal_init_dev(sb, journal, j_dev_name) != 0) { reiserfs_warning(sb, "sh-462", "unable to initialize journal device"); |