diff options
Diffstat (limited to 'src/journal')
| -rw-r--r-- | src/journal/journal-file.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c index ac6c30f9f2..ff01e5aa94 100644 --- a/src/journal/journal-file.c +++ b/src/journal/journal-file.c @@ -707,7 +707,11 @@ int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset /* Objects may only be located at multiple of 64 bit */ if (!VALID64(offset)) - return -EFAULT; + return -EBADMSG; + + /* Object may not be located in the file header */ + if (offset < le64toh(f->header->header_size)) + return -EBADMSG; r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t); if (r < 0) @@ -1980,9 +1984,14 @@ static int generic_array_bisect( i = right - 1; lp = p = le64toh(array->entry_array.items[i]); if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); + r = -EBADMSG; + else + r = test_object(f, p, needle); + if (r == -EBADMSG) { + log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (1)"); + n = i; + continue; + } if (r < 0) return r; @@ -2058,9 +2067,14 @@ static int generic_array_bisect( p = le64toh(array->entry_array.items[i]); if (p <= 0) - return -EBADMSG; - - r = test_object(f, p, needle); + r = -EBADMSG; + else + r = test_object(f, p, needle); + if (r == -EBADMSG) { + log_debug_errno(r, "Encountered invalid entry while bisecting, cutting algorithm short. (2)"); + right = n = i; + continue; + } if (r < 0) return r; @@ -2465,12 +2479,18 @@ int journal_file_next_entry( le64toh(f->header->entry_array_offset), i, ret, &ofs); + if (r == -EBADMSG && direction == DIRECTION_DOWN) { + /* Special case: when we iterate throught the journal file linearly, and hit an entry we can't read, + * consider this the end of the journal file. */ + log_debug_errno(r, "Encountered entry we can't read while iterating through journal file. Considering this the end of the file."); + return 0; + } if (r <= 0) return r; if (p > 0 && (direction == DIRECTION_DOWN ? ofs <= p : ofs >= p)) { - log_debug("%s: entry array corrupted at entry %"PRIu64, f->path, i); + log_debug("%s: entry array corrupted at entry %" PRIu64, f->path, i); return -EBADMSG; } |