diff options
| -rw-r--r-- | src/journal/journal-file.c | 24 | ||||
| -rw-r--r-- | src/journal/journalctl.c | 4 |
2 files changed, 21 insertions, 7 deletions
diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c index 349ef74e81..953f4e5ce6 100644 --- a/src/journal/journal-file.c +++ b/src/journal/journal-file.c @@ -747,12 +747,16 @@ int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset assert(ret); /* Objects may only be located at multiple of 64 bit */ - if (!VALID64(offset)) + if (!VALID64(offset)) { + log_debug("Attempt to move to object at non-64bit boundary: %" PRIu64, offset); return -EBADMSG; + } /* Object may not be located in the file header */ - if (offset < le64toh(f->header->header_size)) + if (offset < le64toh(f->header->header_size)) { + log_debug("Attempt to move to object located in file header: %" PRIu64, offset); return -EBADMSG; + } r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t); if (r < 0) @@ -761,17 +765,25 @@ int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset o = (Object*) t; s = le64toh(o->object.size); - if (s < sizeof(ObjectHeader)) + if (s < sizeof(ObjectHeader)) { + log_debug("Attempt to move to overly short object: %" PRIu64, offset); return -EBADMSG; + } - if (o->object.type <= OBJECT_UNUSED) + if (o->object.type <= OBJECT_UNUSED) { + log_debug("Attempt to move to object with invalid type: %" PRIu64, offset); return -EBADMSG; + } - if (s < minimum_header_size(o)) + if (s < minimum_header_size(o)) { + log_debug("Attempt to move to truncated object: %" PRIu64, offset); return -EBADMSG; + } - if (type > OBJECT_UNUSED && o->object.type != type) + if (type > OBJECT_UNUSED && o->object.type != type) { + log_debug("Attempt to move to object of unexpected type: %" PRIu64, offset); return -EBADMSG; + } if (s > sizeof(ObjectHeader)) { r = journal_file_move_to(f, type, false, offset, s, &t); diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c index 13e3b44f06..f753435888 100644 --- a/src/journal/journalctl.c +++ b/src/journal/journalctl.c @@ -1091,8 +1091,10 @@ static int discover_next_boot(sd_journal *j, r = sd_journal_previous(j); if (r < 0) return r; - else if (r == 0) + else if (r == 0) { + log_debug("Whoopsie! We found a boot ID but can't read its last entry."); return -ENODATA; /* This shouldn't happen. We just came from this very boot ID. */ + } r = sd_journal_get_realtime_usec(j, &next_boot->last); if (r < 0) |