* [PULL v3 00/17] Block layer patches
@ 2026-08-03 8:47 Kevin Wolf
2026-08-03 18:26 ` Stefan Hajnoczi
0 siblings, 1 reply; 2+ messages in thread
From: Kevin Wolf @ 2026-08-03 8:47 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, stefanha, qemu-devel
The following changes since commit b428fe036233cbd15d37e3c027ab6ca4d3661a80:
Merge tag 'pull-target-arm-20260731' of https://gitlab.com/pm215/qemu into staging (2026-07-31 16:19:04 -0400)
are available in the Git repository at:
https://repo.or.cz/qemu/kevin.git for-upstream
for you to fetch changes up to 52227e25712629406c89c4902b39962f8b9b6f2c:
iotests: increase timeouts for tests to 5 minutes (2026-08-03 10:42:29 +0200)
----------------------------------------------------------------
Block layer patches
- Fix missing locking in latency histogram setters
- coroutine: fix lost wakeup in qemu_co_sleep_wake()
- floppy: Fix READ/WRITE/FORMAT/READ ID behaviour with missing medium
- qcow2: Fix crash on closing a read-only image with dirty bit set
- cloop: fix integer overflow in total_sectors calculation
- dmg: Fix out of bounds accesses (CVE-2026-65929, CVE-2026-65928)
- FUSE export: fix regression with O_TRUNC when export is not growable
- iotests: Various small fixes
----------------------------------------------------------------
Christian Quante (2):
hw/block/fdc: select the drive named by the READ ID command
hw/block/fdc: report a missing address mark on an empty drive
Daniel P. Berrangé (1):
iotests: increase timeouts for tests to 5 minutes
Denis V. Lunev (8):
block/accounting: take stats->lock in latency histogram setters
block/qapi: take stats->lock when reading BlockAcctStats for query-blockstats
tests/unit: add reproducer for BlockAcctStats histogram locking race
qcow2: do not try to clear the dirty bit on a read-only node
iotests: run the test pool with the 'fork' start method
iotests: skip FUSE tests when FUSE is not usable
iotests/migrate-bitmaps-postcopy-test: replace the timing assertion with a content check
coroutine: fix lost wakeup in qemu_co_sleep_wake()
Fiona Ebner (2):
block/export/fuse: fix regression with O_TRUNC when export is not growable
iotests: test O_TRUNC behavior for fuse exports
Stefan Hajnoczi (3):
dmg: fix out-of-bounds load in search_chunk() (CVE-2026-65929)
dmg: refuse to open files with no chunks
dmg: reject inconsistent UDRW chunk sector count and length (CVE-2026-65928)
malike (1):
block/cloop: fix integer overflow in total_sectors calculation
include/block/accounting.h | 1 +
include/qemu/coroutine.h | 17 +-
block/accounting.c | 11 +-
block/cloop.c | 3 +-
block/dmg.c | 36 ++++-
block/export/fuse.c | 12 ++
block/qapi.c | 3 +
block/qcow2.c | 6 +-
hw/block/fdc.c | 55 ++++++-
tests/qtest/fdc-test.c | 70 ++++++++-
tests/unit/test-block-accounting.c | 115 ++++++++++++++
tests/unit/test-coroutine.c | 53 +++++++
util/qemu-coroutine-sleep.c | 53 +++++--
tests/qemu-iotests/testrunner.py | 4 +-
tests/qemu-iotests/039 | 11 ++
tests/qemu-iotests/039.out | 3 +
tests/qemu-iotests/common.rc | 14 ++
tests/qemu-iotests/meson.build | 15 +-
tests/qemu-iotests/tests/file-io-error | 4 +-
tests/qemu-iotests/tests/fuse-allow-other | 2 +
tests/qemu-iotests/tests/fuse-mmap-shared | 9 +-
tests/qemu-iotests/tests/fuse-truncate | 171 +++++++++++++++++++++
tests/qemu-iotests/tests/fuse-truncate.out | 5 +
.../tests/migrate-bitmaps-postcopy-test | 15 +-
tests/unit/meson.build | 1 +
25 files changed, 633 insertions(+), 56 deletions(-)
create mode 100644 tests/unit/test-block-accounting.c
create mode 100755 tests/qemu-iotests/tests/fuse-truncate
create mode 100644 tests/qemu-iotests/tests/fuse-truncate.out
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PULL v3 00/17] Block layer patches
2026-08-03 8:47 [PULL v3 00/17] Block layer patches Kevin Wolf
@ 2026-08-03 18:26 ` Stefan Hajnoczi
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Hajnoczi @ 2026-08-03 18:26 UTC (permalink / raw)
To: Kevin Wolf; +Cc: qemu-block, stefanha, qemu-devel
On Mon, Aug 3, 2026 at 4:48 AM Kevin Wolf <kwolf@redhat.com> wrote:
>
> The following changes since commit b428fe036233cbd15d37e3c027ab6ca4d3661a80:
>
> Merge tag 'pull-target-arm-20260731' of https://gitlab.com/pm215/qemu into staging (2026-07-31 16:19:04 -0400)
>
> are available in the Git repository at:
>
> https://repo.or.cz/qemu/kevin.git for-upstream
>
> for you to fetch changes up to 52227e25712629406c89c4902b39962f8b9b6f2c:
>
> iotests: increase timeouts for tests to 5 minutes (2026-08-03 10:42:29 +0200)
>
> ----------------------------------------------------------------
> Block layer patches
>
> - Fix missing locking in latency histogram setters
> - coroutine: fix lost wakeup in qemu_co_sleep_wake()
> - floppy: Fix READ/WRITE/FORMAT/READ ID behaviour with missing medium
> - qcow2: Fix crash on closing a read-only image with dirty bit set
> - cloop: fix integer overflow in total_sectors calculation
> - dmg: Fix out of bounds accesses (CVE-2026-65929, CVE-2026-65928)
> - FUSE export: fix regression with O_TRUNC when export is not growable
The check-python-minreqs job is still failing:
tests/fuse-truncate:43: error: invalid syntax [syntax]
...
tests/fuse-truncate:43:19: E0001: Parsing failed: 'invalid syntax
(<unknown>, line 43)' (syntax-error)
https://gitlab.com/qemu-project/qemu/-/jobs/15683823681#L217
You can run the job locally like this:
$ make docker-image-python
$ podman run --rm -i -v $PWD:/usr/src/qemu:z qemu/python /bin/bash -c
"cd /usr/src/qemu && make -C python check-minreqs"
The invalid syntax also prevents the fuse-truncate test from running
successfully:
>>> LD_LIBRARY_PATH=/builds/qemu-project/qemu/build/subprojects/libvfio-user/lib MSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 PYTHON=/builds/qemu-project/qemu/build/pyvenv/bin/python3 ASAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1 UBSAN_OPTIONS=halt_on_error=1:abort_on_error=1:print_summary=1:print_stacktrace=1 RUST_BACKTRACE=1 MESON_TEST_ITERATION=1 MALLOC_PERTURB_=36 /builds/qemu-project/qemu/build/pyvenv/bin/python3 /builds/qemu-project/qemu/build/../tests/qemu-iotests/check -tap -nbd fuse-truncate --source-dir /builds/qemu-project/qemu/tests/qemu-iotests --build-dir /builds/qemu-project/qemu/build/tests/qemu-iotests
――――――――――――――――――――――――――――――――――――― ✀ ―――――――――――――――――――――――――――――――――――――
stderr:
--- /builds/qemu-project/qemu/tests/qemu-iotests/tests/fuse-truncate.out
+++ /builds/qemu-project/qemu/build/scratch/raw-nbd-fuse-truncate/fuse-truncate.out.bad
@@ -1,5 +1,4 @@
-...
-----------------------------------------------------------------------
-Ran 3 tests
-
-OK
+ File "/builds/qemu-project/qemu/tests/qemu-iotests/tests/fuse-truncate",
line 43
+ except OSError, subprocess.CalledProcessError:
+ ^
+SyntaxError: invalid syntax
(test program exited with status code 1)
https://gitlab.com/qemu-project/qemu/-/jobs/15683823663#L179
Stefan
> - iotests: Various small fixes
>
> ----------------------------------------------------------------
> Christian Quante (2):
> hw/block/fdc: select the drive named by the READ ID command
> hw/block/fdc: report a missing address mark on an empty drive
>
> Daniel P. Berrangé (1):
> iotests: increase timeouts for tests to 5 minutes
>
> Denis V. Lunev (8):
> block/accounting: take stats->lock in latency histogram setters
> block/qapi: take stats->lock when reading BlockAcctStats for query-blockstats
> tests/unit: add reproducer for BlockAcctStats histogram locking race
> qcow2: do not try to clear the dirty bit on a read-only node
> iotests: run the test pool with the 'fork' start method
> iotests: skip FUSE tests when FUSE is not usable
> iotests/migrate-bitmaps-postcopy-test: replace the timing assertion with a content check
> coroutine: fix lost wakeup in qemu_co_sleep_wake()
>
> Fiona Ebner (2):
> block/export/fuse: fix regression with O_TRUNC when export is not growable
> iotests: test O_TRUNC behavior for fuse exports
>
> Stefan Hajnoczi (3):
> dmg: fix out-of-bounds load in search_chunk() (CVE-2026-65929)
> dmg: refuse to open files with no chunks
> dmg: reject inconsistent UDRW chunk sector count and length (CVE-2026-65928)
>
> malike (1):
> block/cloop: fix integer overflow in total_sectors calculation
>
> include/block/accounting.h | 1 +
> include/qemu/coroutine.h | 17 +-
> block/accounting.c | 11 +-
> block/cloop.c | 3 +-
> block/dmg.c | 36 ++++-
> block/export/fuse.c | 12 ++
> block/qapi.c | 3 +
> block/qcow2.c | 6 +-
> hw/block/fdc.c | 55 ++++++-
> tests/qtest/fdc-test.c | 70 ++++++++-
> tests/unit/test-block-accounting.c | 115 ++++++++++++++
> tests/unit/test-coroutine.c | 53 +++++++
> util/qemu-coroutine-sleep.c | 53 +++++--
> tests/qemu-iotests/testrunner.py | 4 +-
> tests/qemu-iotests/039 | 11 ++
> tests/qemu-iotests/039.out | 3 +
> tests/qemu-iotests/common.rc | 14 ++
> tests/qemu-iotests/meson.build | 15 +-
> tests/qemu-iotests/tests/file-io-error | 4 +-
> tests/qemu-iotests/tests/fuse-allow-other | 2 +
> tests/qemu-iotests/tests/fuse-mmap-shared | 9 +-
> tests/qemu-iotests/tests/fuse-truncate | 171 +++++++++++++++++++++
> tests/qemu-iotests/tests/fuse-truncate.out | 5 +
> .../tests/migrate-bitmaps-postcopy-test | 15 +-
> tests/unit/meson.build | 1 +
> 25 files changed, 633 insertions(+), 56 deletions(-)
> create mode 100644 tests/unit/test-block-accounting.c
> create mode 100755 tests/qemu-iotests/tests/fuse-truncate
> create mode 100644 tests/qemu-iotests/tests/fuse-truncate.out
>
>
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2026-08-03 8:47 [PULL v3 00/17] Block layer patches Kevin Wolf
2026-08-03 18:26 ` Stefan Hajnoczi
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