Handle invalid data during job loading.

Catch exceptions that may be thrown if invalid data ended up in the
persisted job file.

Bug: 246541702
Bug: 246542132
Bug: 246542285
Bug: 246542330
Test: install test app with invalid job config, start app to schedule job, then reboot device
Change-Id: Id0ceba345942baf21177f687b8dd85ef001c0a9e
(cherry picked from commit c98fb42b480b3beedc2d94de6110f50212c4aa0b)
Merged-In: Id0ceba345942baf21177f687b8dd85ef001c0a9e

1 files changed, 23 insertions, 3 deletions

diff --git a/apex/jobscheduler/service/java/com/android/server/job/JobStore.java b/apex/jobscheduler/service/java/com/android/server/job/JobStore.java
index 2f5f555817ec..146d68fdd653 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/JobStore.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/JobStore.java
@@ -687,6 +687,10 @@ public final class JobStore {
                 }
             } catch (XmlPullParserException | IOException e) {
                 Slog.wtf(TAG, "Error jobstore xml.", e);
+            } catch (Exception e) {
+                // Crashing at this point would result in a boot loop, so live with a general
+                // Exception for system stability's sake.
+                Slog.wtf(TAG, "Unexpected exception", e);
             } finally {
                 if (mPersistInfo.countAllJobsLoaded < 0) { // Only set them once.
                     mPersistInfo.countAllJobsLoaded = numJobs;
@@ -817,6 +821,15 @@ public final class JobStore {
             } catch (NumberFormatException e) {
                 Slog.d(TAG, "Error reading constraints, skipping.");
                 return null;
+            } catch (XmlPullParserException e) {
+                Slog.d(TAG, "Error Parser Exception.", e);
+                return null;
+            } catch (IOException e) {
+                Slog.d(TAG, "Error I/O Exception.", e);
+                return null;
+            } catch (IllegalArgumentException e) {
+                Slog.e(TAG, "Constraints contained invalid data", e);
+                return null;
             }
             parser.next(); // Consume </constraints>
 
@@ -912,8 +925,14 @@ public final class JobStore {
                 return null;
             }
 
-            PersistableBundle extras = PersistableBundle.restoreFromXml(parser);
-            jobBuilder.setExtras(extras);
+            final PersistableBundle extras;
+            try {
+                extras = PersistableBundle.restoreFromXml(parser);
+                jobBuilder.setExtras(extras);
+            } catch (IllegalArgumentException e) {
+                Slog.e(TAG, "Persisted extras contained invalid data", e);
+                return null;
+            }
             parser.nextTag(); // Consume </extras>
 
             final JobInfo builtJob;
@@ -959,7 +978,8 @@ public final class JobStore {
             return new JobInfo.Builder(jobId, cname);
         }
 
-        private void buildConstraintsFromXml(JobInfo.Builder jobBuilder, XmlPullParser parser) {
+        private void buildConstraintsFromXml(JobInfo.Builder jobBuilder, XmlPullParser parser)
+                throws XmlPullParserException, IOException {
             String val;
 
             final String netCapabilities = parser.getAttributeValue(null, "net-capabilities");