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OpenAdvisories
Unscored CVE-2024-43863 EUVD-2024-40513GHSA-f95q-fwq6-mx8w

drm/vmwgfx: Fix a deadlock in dma buf fence polling

Published Aug 20, 2024 · Updated May 11, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: kernel Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-5.4 Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Fix a deadlock in dma buf fence polling

Introduce a version of the fence ops that on release doesn't remove
the fence from the pending list, and thus doesn't require a lock to
fix poll->fence wait->fence unref deadlocks.

vmwgfx overwrites the wait callback to iterate over the list of all
fences and update their status, to do that it holds a lock to prevent
the list modifcations from other threads. The fence destroy callback
both deletes the fence and removes it from the list of pending
fences, for which it holds a lock.

dma buf polling cb unrefs a fence after it's been signaled: so the poll
calls the wait, which signals the fences, which are being destroyed.
The destruction tries to acquire the lock on the pending fences list
which it can never get because it's held by the wait from which it
was called.

Old bug, but not a lot of userspace apps were using dma-buf polling
interfaces. Fix those, in particular this fixes KDE stalls/deadlock.

Affected products

VendorProductAffectedFixed
Linux Linux 3.18 5.10.238

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.10.4-1 —
Debian 13 linux 6.10.4-1 —
Debian 12 linux 6.1.106-1 —
Debian 11 linux 5.10.244-1 DLA-4327-1
Debian 11 linux-6.1 6.1.119-1~deb11u1 DLA-4008-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1056.58 —
Ubuntu 24.04 LTS linux 6.8.0-50.51 USN-7154-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1020.22 USN-7154-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1020.23 USN-7196-1
Ubuntu 24.04 LTS linux-gcp +1 6.8.0-1019.21 USN-7155-1, USN-7154-1
Ubuntu 24.04 LTS linux-gke 6.8.0-1015.19 USN-7154-1
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1002.4 USN-7156-1
Ubuntu 24.04 LTS linux-ibm 6.8.0-1017.17 USN-7154-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1019.21.1 USN-7155-1
Ubuntu 24.04 LTS linux-oem-6.8 6.8.0-1018.18 USN-7154-1
Ubuntu 24.04 LTS linux-oracle +1 6.8.0-1017.18 USN-7154-1
Ubuntu 24.04 LTS linux-raspi 6.8.0-1016.18 USN-7154-1
Ubuntu 24.04 LTS linux-riscv +1 6.8.0-50.51.1 USN-7154-1
Ubuntu 22.04 LTS linux +1 5.15.0-125.135 USN-7100-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1072.78 USN-7100-2
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1020.22~22.04.1 USN-7154-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1075.84 USN-7123-1
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1020.23~22.04.1 USN-7196-1
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1076.85.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1071.79 USN-7100-1
Ubuntu 22.04 LTS linux-gcp-6.8 +1 6.8.0-1019.21~22.04.1 USN-7155-1, USN-7154-1
Ubuntu 22.04 LTS linux-gke 5.15.0-1069.75 USN-7100-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1055.62 USN-7100-1
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-50.51~22.04.1 USN-7154-2
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1065.68 USN-7100-1
Ubuntu 22.04 LTS linux-ibm-6.8 6.8.0-1017.17~22.04.1 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1067.73 USN-7144-1
Ubuntu 22.04 LTS linux-kvm 5.15.0-1069.74 USN-7100-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1067.68 USN-7100-1
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1032.32 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1020.20 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1070.76 USN-7100-1
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1017.18~22.04.1 USN-7154-1
Ubuntu 22.04 LTS linux-riscv +31 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 +1 6.8.0-50.51.1~22.04.1 USN-7154-1
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1038.42 USN-7100-1
Ubuntu 20.04 LTS linux 5.4.0-208.228 USN-7293-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1140.150 USN-7294-2
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1072.78~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1145.152 USN-7294-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1078.87~20.04.1 USN-7194-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1099.106 USN-7294-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1143.152 USN-7294-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1071.79~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-gke +27 No fix yet —
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1055.62~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-125.135~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1086.91 USN-7294-3
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1065.68~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1067.73~20.04.1 USN-7144-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1048.51 USN-7413-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1127.136 USN-7294-4
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1032.32~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1138.147 USN-7294-2
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1070.76~20.04.1 USN-7100-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1129.142 USN-7539-1
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1068.72~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1058.62 USN-7295-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 15 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2015.16 —
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1013.14 —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1066.68 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1073.81 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1013.14~22.04.1 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 24.04 LTS linux-fips 6.8.0-78.78+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-aws-fips 5.15.0-1072.78+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-azure-fips 5.15.0-1075.84+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-125.135+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1071.79+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1140.151+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1145.152+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1116.126 USN-7393-1
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1143.152+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2116.122 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2095.101 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1133.144 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2079.85 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1111.118 —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro 18.04 LTS linux 4.15.0-235.247 USN-7342-1
Ubuntu Pro 18.04 LTS linux-aws 4.15.0-1178.191 USN-7344-1
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1142.152~18.04.1 USN-7401-1
Ubuntu Pro 18.04 LTS linux-azure-4.15 4.15.0-1186.201 USN-7344-2
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1145.152~18.04.1 USN-7294-1
Ubuntu Pro 18.04 LTS linux-gcp-4.15 4.15.0-1171.188 USN-7344-1
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1143.152~18.04.1 USN-7294-1
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-208.228~18.04.1 USN-7293-1
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1086.91~18.04.1 USN-7294-1
Ubuntu Pro 18.04 LTS linux-kvm 4.15.0-1161.166 USN-7344-1
Ubuntu Pro 18.04 LTS linux-oracle 4.15.0-1140.151 USN-7344-1
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1138.147~18.04.1 USN-7294-2
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1129.142~18.04.1 USN-7540-1
Ubuntu Pro 16.04 LTS linux 4.4.0-266.300 USN-7332-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1179.194 USN-7332-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1178.191~16.04.1 USN-7344-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1186.201~16.04.1 USN-7344-2
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1171.188~16.04.1 USN-7344-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-235.247~16.04.1 USN-7342-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1142.153 USN-7332-2
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1140.151~16.04.1 USN-7344-1
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1141.147 USN-7332-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1186.201~14.04.1 USN-7344-2
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-266.300~14.04.1 USN-7332-3
ReleasePackageFixed inAdvisory
SLES 15 SP6 kernel-64kb +6 6.4.0-150600.23.22.1 SUSE-SU-2024:3383-1
SLES 15 SP6 kernel-azure +2 6.4.0-150600.8.11.1 SUSE-SU-2024:3194-1
SLES 15 SP6 kernel-default-base 6.4.0-150600.23.22.1.150600.12.8.3 SUSE-SU-2024:3383-1
SLES 15 SP5 kernel-64kb +4 5.14.21-150500.55.80.2 SUSE-SU-2024:3483-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.66.1 SUSE-SU-2024:3190-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.80.2.150500.6.35.6 SUSE-SU-2024:3483-1
SLES 15 SP5 kernel-syms +1 5.14.21-150500.55.80.1 SUSE-SU-2024:3483-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.197.1 SUSE-SU-2024:3252-1
SLES 12 SP5 kernel-docs +1 4.12.14-122.228.2 SUSE-SU-2024:3251-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.228.1 SUSE-SU-2024:3251-1
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.197.1 SUSE-SU-2024:3252-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.228.1 SUSE-SU-2024:3251-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.200.1 SUSE-SU-2024:3189-1
SLE Micro 6.0 kernel-default-base 6.4.0-17.1.1.51 SUSE-SU-2025:20044-1
SLE Micro 6.0 kernel-livepatch-MICRO-6-0_Update_2 +1 1-1.1 SUSE-SU-2025:20047-1, SUSE-SU-2025:20044-1
SLE Micro 6.0 kernel-rt +1 6.4.0-10.1 SUSE-SU-2025:20047-1
SLE Micro 6.0 kernel-source +2 6.4.0-19.1 SUSE-SU-2025:20044-1
SLE Micro 5.5 kernel-default 5.14.21-150500.55.80.2 SUSE-SU-2024:3483-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.80.2.150500.6.35.6 SUSE-SU-2024:3483-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.67.3 SUSE-SU-2024:3209-1
SLE Live Patching 15 SP6 kernel-default 6.4.0-150600.23.22.1 SUSE-SU-2024:3383-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6-RT_Update_2 1-150600.1.3.2 SUSE-SU-2024:3195-1
SLE Live Patching 15 SP6 kernel-livepatch-SLE15-SP6_Update_4 1-150600.13.3.3 SUSE-SU-2024:3383-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.80.2 SUSE-SU-2024:3483-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_19 +1 1-150500.11.3.2 SUSE-SU-2024:3483-1, SUSE-SU-2024:3209-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.228.1 SUSE-SU-2024:3251-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_60 1-8.3.1 SUSE-SU-2024:3251-1
SUSE Real Time Module 15 SP6 kernel-rt +2 6.4.0-150600.10.8.3 SUSE-SU-2024:3195-1
SUSE Real Time Module 15 SP6 kernel-syms-rt 6.4.0-150600.10.8.1 SUSE-SU-2024:3195-1
SUSE Real Time Module 15 SP5 kernel-rt +2 5.14.21-150500.13.67.3 SUSE-SU-2024:3209-1
SUSE Real Time Module 15 SP5 kernel-syms-rt 5.14.21-150500.13.67.1 SUSE-SU-2024:3209-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.6 dtb-aarch64 +10 6.4.0-150600.23.22.1 SUSE-SU-2024:3383-1
openSUSE Leap 15.6 kernel-azure +2 6.4.0-150600.8.11.1 SUSE-SU-2024:3194-1
openSUSE Leap 15.6 kernel-default-base 6.4.0-150600.23.22.1.150600.12.8.3 SUSE-SU-2024:3383-1
openSUSE Leap 15.6 kernel-rt +2 6.4.0-150600.10.8.3 SUSE-SU-2024:3195-1
openSUSE Leap 15.6 kernel-syms-rt 6.4.0-150600.10.8.1 SUSE-SU-2024:3195-1
openSUSE Leap 15.5 dtb-aarch64 +3 5.14.21-150500.55.80.1 SUSE-SU-2024:3483-1
openSUSE Leap 15.5 kernel-64kb +6 5.14.21-150500.55.80.2 SUSE-SU-2024:3483-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.66.1 SUSE-SU-2024:3190-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.80.2.150500.6.35.6 SUSE-SU-2024:3483-1
openSUSE Leap 15.5 kernel-rt +2 5.14.21-150500.13.67.3 SUSE-SU-2024:3209-1
openSUSE Leap 15.5 kernel-syms-rt 5.14.21-150500.13.67.1 SUSE-SU-2024:3209-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.5 kernel-default 5.14.21-150500.55.80.2 SUSE-SU-2024:3483-1
openSUSE Leap Micro 5.5 kernel-default-base 5.14.21-150500.55.80.2.150500.6.35.6 SUSE-SU-2024:3483-1
openSUSE Leap Micro 5.5 kernel-rt 5.14.21-150500.13.67.3 SUSE-SU-2024:3209-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.167.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 bpftool +13 5.15.0-302.167.6.el9uek ELSA-2024-12815

Advisories 42

References