[ubuntu/jammy-security] qemu 1:6.2+dfsg-2ubuntu6.27 (Accepted)

Marc Deslauriers marc.deslauriers at canonical.com
Thu Sep 11 12:15:24 UTC 2025


qemu (1:6.2+dfsg-2ubuntu6.27) jammy-security; urgency=medium

  * SECURITY UPDATE: double-free in QEMU virtio devices
    - debian/patches/CVE-2024-3446-pre1.patch: add an optional reentrancy
      guard to the BH API in docs/devel/multiple-iothreads.txt,
      include/block/aio.h, include/qemu/main-loop.h,
      tests/unit/ptimer-test-stubs.c, util/async.c, util/main-loop.c,
      util/trace-events.
    - debian/patches/CVE-2024-3446-pre2.patch: replace most qemu_bh_new
      calls with qemu_bh_new_guarded.
    - debian/patches/CVE-2024-3446-pre3.patch: introduce
      virtio_bh_new_guarded() helper in hw/virtio/virtio.c,
      include/hw/virtio/virtio.h.
    - debian/patches/CVE-2024-3446-1.patch: protect from DMA re-entrancy
      bugs in hw/virtio/virtio-crypto.c.
    - debian/patches/CVE-2024-3446-2.patch: protect from DMA re-entrancy
      bugs in hw/char/virtio-serial-bus.c.
    - debian/patches/CVE-2024-3446-3.patch: protect from DMA re-entrancy
      bugs in hw/display/virtio-gpu.c.
    - CVE-2024-3446
  * SECURITY UPDATE: heap overflow in SDHCI device emulation
    - debian/patches/CVE-2024-3447.patch: do not update TRNMOD when Command
      Inhibit (DAT) is set in hw/sd/sdhci.c.
    - CVE-2024-3447
  * SECURITY UPDATE: resource consumption in disk utility
    - debian/patches/CVE-2024-4467-pre1.patch: do not reopen data_file in
      invalidate_cache in block/qcow2.c.
    - debian/patches/CVE-2024-4467-1.patch: don't open data_file with
      BDRV_O_NO_IO in block/qcow2.c, tests/qemu-iotests/061*.
    - debian/patches/CVE-2024-4467-2.patch: don't store data-file with
      protocol in image in tests/qemu-iotests/244.
    - debian/patches/CVE-2024-4467-3.patch: don't store data-file with
      json: prefix in image in tests/qemu-iotests/270.
    - debian/patches/CVE-2024-4467-4.patch: parse filenames only when
      explicitly requested in block.c.
    - CVE-2024-4467
  * SECURITY UPDATE: heap overflow in virtio-net device RSS feature
    - debian/patches/CVE-2024-6505.patch: ensure queue index fits with RSS
      in hw/net/virtio-net.c.
    - CVE-2024-6505
  * SECURITY UPDATE: Dos via improper synchronization during socket closure
    - debian/patches/CVE-2024-7409-1.patch: plumb in new args to
      nbd_client_add() in blockdev-nbd.c, include/block/nbd.h,
      nbd/server.c, qemu-nbd.c.
    - debian/patches/CVE-2024-7409-2.patch: cap default max-connections to
      100 in block/monitor/block-hmp-cmds.c, blockdev-nbd.c,
      include/block/nbd.h, qapi/block-export.json.
    - debian/patches/CVE-2024-7409-3.patch: close stray clients at
      server-stop in blockdev-nbd.c.
    - debian/patches/CVE-2024-7409-4.patch: drop non-negotiating clients in
      nbd/server.c, nbd/trace-events.
    - debian/patches/CVE-2024-7409-5.patch: avoid use-after-free when
      closing server in blockdev-nbd.c.
    - CVE-2024-7409
  * SECURITY UPDATE: DoS via assert failure in usb_ep_get()
    - debian/patches/CVE-2024-8354.patch: change ohci validation in
      hw/usb/hcd-ohci.c, hw/usb/trace-events.
    - CVE-2024-8354
  * SECURITY UPDATE: possibly binfmt privilege escalation (LP: #2120814)
    - debian/binfmt-install: stop using C (Credentials) flag for
      binfmt_misc registration.

qemu (1:6.2+dfsg-2ubuntu6.26) jammy; urgency=medium

  [ Christian Ehrhardt ]
  * d/p/u/lp-2098896-hw-nvme-fix-narrowing-conversion.patch:
    Fix nvme devices >= 1 TiB in size (LP: #2098896)
    Thanks to Ryan Harper for the report, bisect and preparation!
  * d/p/u/lp-2019967-*: Add Rome types with updated cache info (LP: #2019967)

qemu (1:6.2+dfsg-2ubuntu6.25) jammy; urgency=medium

  * d/p/u/lp-2019968-add-missing-feature-bits-epyc-milan-*.patch: Add
    missing feature bits to EPYC-Milan CPU model. (LP: #2019968)

  [ Louis Bouchard ]
  * d/p/monitor-only-run-coroutine-commands-in-qemu_aio_cont.patch:
    Backport upstream fix for qmp timeouts.
    Upstream commit effd60c878176bcaf97fa7ce2b12d04bb8ead6f7
    (LP: #2091013)

Date: 2025-08-26 12:06:12.719346+00:00
Changed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/+source/qemu/1:6.2+dfsg-2ubuntu6.27
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