Public bug reported:
During my recent work on LP: #2129676 I discovered that on jammy and
noble there's a qpdf test failing (processing fuzz-16214.pdf)
consistently on s390x. The issue also happens for qpdf that's currently
in the archive (without my patches).
This is in the build log:
```
Running /<<PKGBUILDDIR>>/qpdf/qtest/specific-bugs.test
specific-bugs test 23 (stream in object stream) FAILED
cwd: /<<PKGBUILDDIR>>/qpdf/qtest/qpdf
command: qpdf --preserve-unreferenced fuzz-16214.pdf a.pdf
expected output in fuzz-16214.out
at specific-bugs.test line 74.
--> BEGIN EXPECTED OUTPUT <--
WARNING: fuzz-16214.pdf: can't find PDF header
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 124): stream
dictionary lacks /Length key
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): attempting to
recover stream length
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): recovered stream
length: 722
WARNING: fuzz-16214.pdf (xref stream, offset 116): Cross-reference stream data
has the wrong size; expected = 92; actual = 196
WARNING: fuzz-16214.pdf: reported number of objects (6) is not one plus the
highest object number (35)
WARNING: fuzz-16214.pdf (object 14 0, offset 652): expected dictionary key but
found non-name object; inserting key /QPDFFake1
WARNING: fuzz-16214.pdf (object 14 0, offset 734): expected endobj
WARNING: fuzz-16214.pdf: file is damaged
WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object 2
0: stream inflate: inflate: data: invalid code lengths set
WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream 5
has wrong type
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
WARNING: fuzz-16214.pdf (object 21 0, offset 3639): expected endstream
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): attempting to recover
stream length
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): recovered stream length: 340
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object stream;
treating as null
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object stream;
treating as null
qpdf: operation succeeded with warnings; resulting file may have some problems
--> END EXPECTED OUTPUT <--
--> BEGIN ACTUAL OUTPUT <--
WARNING: fuzz-16214.pdf: can't find PDF header
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 124): stream
dictionary lacks /Length key
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): attempting to
recover stream length
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): recovered stream
length: 722
WARNING: fuzz-16214.pdf (xref stream, offset 116): Cross-reference stream data
has the wrong size; expected = 92; actual = 196
WARNING: fuzz-16214.pdf: reported number of objects (6) is not one plus the
highest object number (35)
WARNING: fuzz-16214.pdf (object 14 0, offset 652): expected dictionary key but
found non-name object; inserting key /QPDFFake1
WARNING: fuzz-16214.pdf (object 14 0, offset 734): expected endobj
WARNING: fuzz-16214.pdf: file is damaged
WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object 2
0: stream inflate: inflate: data: Operation-Ending-Supplemental Code is 0x27
WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream 5
has wrong type
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
WARNING: fuzz-16214.pdf (object 21 0, offset 3639): expected endstream
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): attempting to recover
stream length
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): recovered stream length: 340
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object stream;
treating as null
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object stream;
treating as null
qpdf: operation succeeded with warnings; resulting file may have some problems
--> END ACTUAL OUTPUT <--
--> DIFF EXPECTED ACTUAL <--
--- /tmp/testtemp.12181/expected 2025-11-18 14:23:43.084271280 +0000
+++ /tmp/testtemp.12181/actual 2025-11-18 14:23:43.084271280 +0000
@@ -9,7 +9,7 @@
WARNING: fuzz-16214.pdf: file is damaged
WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
-WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object 2
0: stream inflate: inflate: data: invalid code lengths set
+WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object 2
0: stream inflate: inflate: data: Operation-Ending-Supplemental Code is 0x27
WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream 5
has wrong type
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
--> END DIFFERENCES <--
```
There has to be something s390x specific making it behave in a different
way in that environment. Every other architecture I tested (basically
everything I had available in PPA) was executing tests correctly.
Newer releases (Plucky+) work fine. I'm looking for an opportunity to
bisect it on s390x.
** Affects: qpdf (Ubuntu)
Importance: Medium
Assignee: Dariusz Gadomski (dgadomski)
Status: New
** Affects: qpdf (Ubuntu Jammy)
Importance: Medium
Assignee: Dariusz Gadomski (dgadomski)
Status: New
** Affects: qpdf (Ubuntu Noble)
Importance: Medium
Assignee: Dariusz Gadomski (dgadomski)
Status: New
** Also affects: qpdf (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: qpdf (Ubuntu Noble)
Importance: Undecided
Status: New
** Description changed:
During my recent work on LP: #2129676 I discovered that on jammy and
noble there's a qpdf test failing (processing fuzz-16214.pdf)
consistently on s390x. The issue also happens for qpdf that's currently
in the archive (without my patches).
This is in the build log:
```
Running /<<PKGBUILDDIR>>/qpdf/qtest/specific-bugs.test
specific-bugs test 23 (stream in object stream) FAILED
cwd: /<<PKGBUILDDIR>>/qpdf/qtest/qpdf
command: qpdf --preserve-unreferenced fuzz-16214.pdf a.pdf
expected output in fuzz-16214.out
- at specific-bugs.test line 74.
+ at specific-bugs.test line 74.
--> BEGIN EXPECTED OUTPUT <--
WARNING: fuzz-16214.pdf: can't find PDF header
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 124): stream
dictionary lacks /Length key
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): attempting to
recover stream length
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): recovered
stream length: 722
WARNING: fuzz-16214.pdf (xref stream, offset 116): Cross-reference stream
data has the wrong size; expected = 92; actual = 196
WARNING: fuzz-16214.pdf: reported number of objects (6) is not one plus the
highest object number (35)
WARNING: fuzz-16214.pdf (object 14 0, offset 652): expected dictionary key
but found non-name object; inserting key /QPDFFake1
WARNING: fuzz-16214.pdf (object 14 0, offset 734): expected endobj
WARNING: fuzz-16214.pdf: file is damaged
WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object
2 0: stream inflate: inflate: data: invalid code lengths set
WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream 5
has wrong type
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
WARNING: fuzz-16214.pdf (object 21 0, offset 3639): expected endstream
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): attempting to recover
stream length
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): recovered stream length:
340
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object
stream; treating as null
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object
stream; treating as null
qpdf: operation succeeded with warnings; resulting file may have some problems
--> END EXPECTED OUTPUT <--
--> BEGIN ACTUAL OUTPUT <--
WARNING: fuzz-16214.pdf: can't find PDF header
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 124): stream
dictionary lacks /Length key
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): attempting to
recover stream length
WARNING: fuzz-16214.pdf (xref stream: object 5 0, offset 353): recovered
stream length: 722
WARNING: fuzz-16214.pdf (xref stream, offset 116): Cross-reference stream
data has the wrong size; expected = 92; actual = 196
WARNING: fuzz-16214.pdf: reported number of objects (6) is not one plus the
highest object number (35)
WARNING: fuzz-16214.pdf (object 14 0, offset 652): expected dictionary key
but found non-name object; inserting key /QPDFFake1
WARNING: fuzz-16214.pdf (object 14 0, offset 734): expected endobj
WARNING: fuzz-16214.pdf: file is damaged
WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object
2 0: stream inflate: inflate: data: Operation-Ending-Supplemental Code is 0x27
WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream 5
has wrong type
WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
WARNING: fuzz-16214.pdf (object 21 0, offset 3639): expected endstream
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): attempting to recover
stream length
WARNING: fuzz-16214.pdf (object 21 0, offset 3112): recovered stream length:
340
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object
stream; treating as null
WARNING: fuzz-16214.pdf, stream object 8 0: stream found inside object
stream; treating as null
qpdf: operation succeeded with warnings; resulting file may have some problems
--> END ACTUAL OUTPUT <--
--> DIFF EXPECTED ACTUAL <--
--- /tmp/testtemp.12181/expected 2025-11-18 14:23:43.084271280 +0000
+++ /tmp/testtemp.12181/actual 2025-11-18 14:23:43.084271280 +0000
@@ -9,7 +9,7 @@
- WARNING: fuzz-16214.pdf: file is damaged
- WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
- WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
+ WARNING: fuzz-16214.pdf: file is damaged
+ WARNING: fuzz-16214.pdf (object 1 0, offset 7189): expected n n obj
+ WARNING: fuzz-16214.pdf: Attempting to reconstruct cross-reference table
-WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object
2 0: stream inflate: inflate: data: invalid code lengths set
+WARNING: fuzz-16214.pdf (offset 7207): error decoding stream data for object
2 0: stream inflate: inflate: data: Operation-Ending-Supplemental Code is 0x27
- WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
- WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream
5 has wrong type
- WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
+ WARNING: fuzz-16214.pdf (offset 7207): getStreamData called on unfilterable
stream
+ WARNING: fuzz-16214.pdf (object 11 0, offset 11551): supposed object stream
5 has wrong type
+ WARNING: fuzz-16214.pdf (object 11 0, offset 11551): object stream 5 has
incorrect keys
--> END DIFFERENCES <--
```
There has to be something s390x specific making it behave in a different
way in that environment. Every other architecture I tested (basically
everything I had available in PPA) was executing tests correctly.
+
+ Newer releases (Plucky+) work fine. I'm looking for an opportunity to
+ bisect it on s390x.
** Changed in: qpdf (Ubuntu)
Assignee: (unassigned) => Dariusz Gadomski (dgadomski)
** Changed in: qpdf (Ubuntu Noble)
Assignee: (unassigned) => Dariusz Gadomski (dgadomski)
** Changed in: qpdf (Ubuntu Jammy)
Assignee: (unassigned) => Dariusz Gadomski (dgadomski)
** Changed in: qpdf (Ubuntu Noble)
Importance: Undecided => Medium
** Changed in: qpdf (Ubuntu)
Importance: Undecided => Medium
** Changed in: qpdf (Ubuntu Jammy)
Importance: Undecided => Medium
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2131944
Title:
fuzz-16214 test failing on s390x
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qpdf/+bug/2131944/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
