From 5934b82edae1e3026b539c9e21946efca1ce1ae1 Mon Sep 17 00:00:00 2001
From: Andrew Eikum <aeikum@codeweavers.com>
Date: Fri, 3 Dec 2021 09:08:02 -0600
Subject: [PATCH] media-converter: Don't panic on unknown tags for read-only
 DBs

CW-Bug-Id: #19516
---
 media-converter/src/fossilize.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/media-converter/src/fossilize.rs b/media-converter/src/fossilize.rs
index 79248ba1..b2b4a9d4 100644
--- a/media-converter/src/fossilize.rs
+++ b/media-converter/src/fossilize.rs
@@ -272,6 +272,11 @@ impl StreamArchive {
                 match res {
                     Ok(p) => {
                         self.write_pos = p;
+                        if tag >= self.seen_blobs.len() &&
+                                self.file.metadata()?.permissions().readonly() {
+                            /* ignore unknown tags for read-only DBs, otherwise panic */
+                            continue;
+                        }
                         self.seen_blobs[tag].insert(hash, payload_entry);
                     },