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Fencer Vulns
high 7.0

CVE-2023-51043 json

In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race condition between a nonblocking atomic co…

published 2024-01-23 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-55770

cvss
7.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race condition between a nonblocking atomic commit and a driver unload.

Patch / fix

  • linux linux_kernel 6.4.5
  • linux Debian 12 6.1.52-1
  • linux Debian 14, Debian 13 6.4.11-1

debian advisories DEBIAN-CVE-2023-51043

  • linux Ubuntu 20.04 LTS 5.4.0-166.183
  • linux Ubuntu 22.04 LTS 5.15.0-86.96
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1113.123
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1047.52
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1117.126
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1044.52
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1044.49
  • linux-ibm Ubuntu 20.04 LTS 5.4.0-1060.65

ubuntu advisories UBUNTU-CVE-2023-51043

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 9 5.14.0-427.13.1.el9_4
  • rv RHEL 9 5.14.0-427.13.1.el9_4
  • perf RHEL 9 5.14.0-427.13.1.el9_4
  • rtla RHEL 9 5.14.0-427.13.1.el9_4
  • bpftool RHEL 9 7.3.0-427.13.1.el9_4
  • libperf RHEL 9 5.14.0-427.13.1.el9_4
  • kernel-rt RHEL 9 5.14.0-427.13.1.el9_4
  • kernel-64k RHEL 9 5.14.0-427.13.1.el9_4

red hat advisories RHSA-2024:2394RHSA-2024:1404RHSA-2024:1188RHSA-2024:1018RHSA-2024:1019RHSA-2023:7077

  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-default SLE Workstation Extension 15 SP5, SLE Module for Legacy 15 SP5, SLE Module for Basesystem 15 SP5 +4 more 5.14.21-150500.55.49.1
  • kernel-kvmsmall openSUSE Leap 15.5 5.14.21-150500.55.49.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.49.1

suse advisories SUSE-SU-2024:0516-1SUSE-SU-2024:0515-1SUSE-SU-2024:0514-1SUSE-SU-2024:0484-1SUSE-SU-2024:0483-1SUSE-SU-2024:0478-1

  • kernel AlmaLinux 9 5.14.0-427.13.1.el9_4
  • rv AlmaLinux 9 5.14.0-427.13.1.el9_4
  • perf AlmaLinux 9 5.14.0-427.13.1.el9_4
  • rtla AlmaLinux 9 5.14.0-427.13.1.el9_4
  • bpftool AlmaLinux 9 7.3.0-427.13.1.el9_4
  • libperf AlmaLinux 9 5.14.0-427.13.1.el9_4
  • kernel-rt AlmaLinux 9 5.14.0-427.13.1.el9_4
  • kernel-64k AlmaLinux 9 5.14.0-427.13.1.el9_4

almalinux advisories ALSA-2024:2394

  • kernel CBL-Mariner 2.0 5.15.148.1-1

azure linux advisories AZL-33970

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-51043 updated cvss 7.0

kernel: use-after-free during a race condition between a nonblocking atomic commit and a driver unload in drivers/gpu/drm/drm_atomic.c

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +6 more
    affected: workaround, no fix planned “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    affected: workaround, no fix available “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat CodeReady Linux Builder (v. 8) perf 4.18.0-513.5.1.el8_9, kernel 4.18.0-513.5.1.el8_9, bpftool 4.18.0-513.5.1.el8_9, kernel-core 4.18.0-513.5.1.el8_9, kernel-tools 4.18.0-513.5.1.el8_9, python3-perf 4.18.0-513.5.1.el8_9, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:7077
  • Red Hat CodeReady Linux Builder EUS (v.8.6) perf 4.18.0-372.95.1.el8_6, kernel 4.18.0-372.95.1.el8_6, bpftool 4.18.0-372.95.1.el8_6, kernel-core 4.18.0-372.95.1.el8_6, kernel-tools 4.18.0-372.95.1.el8_6, python3-perf 4.18.0-372.95.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1188
  • Red Hat CodeReady Linux Builder EUS (v.8.8) perf 4.18.0-477.51.1.el8_8, kernel 4.18.0-477.51.1.el8_8, bpftool 4.18.0-477.51.1.el8_8, kernel-core 4.18.0-477.51.1.el8_8, kernel-tools 4.18.0-477.51.1.el8_8, python3-perf 4.18.0-477.51.1.el8_8, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1404
  • Red Hat CodeReady Linux Builder EUS (v.9.2) perf 5.14.0-284.55.1.el9_2, rtla 5.14.0-284.55.1.el9_2, bpftool 7.0.0-284.55.1.el9_2, kernel 5.14.0-284.55.1.el9_2, kernel-64k 5.14.0-284.55.1.el9_2, kernel-core 5.14.0-284.55.1.el9_2, +35 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1018
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, libperf 5.14.0-427.13.1.el9_4, +48 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:2394
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.55.1.el9_2, rtla 5.14.0-284.55.1.el9_2, bpftool 7.0.0-284.55.1.el9_2, kernel 5.14.0-284.55.1.el9_2, kernel-64k 5.14.0-284.55.1.el9_2, kernel-core 5.14.0-284.55.1.el9_2, +35 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1018
show 10 more
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-513.5.1.el8_9, kernel 4.18.0-513.5.1.el8_9, bpftool 4.18.0-513.5.1.el8_9, kernel-core 4.18.0-513.5.1.el8_9, kernel-tools 4.18.0-513.5.1.el8_9, python3-perf 4.18.0-513.5.1.el8_9, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:7077
  • Red Hat Enterprise Linux BaseOS (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, libperf 5.14.0-427.13.1.el9_4, +48 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:2394
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.95.1.el8_6, kernel 4.18.0-372.95.1.el8_6, bpftool 4.18.0-372.95.1.el8_6, kernel-core 4.18.0-372.95.1.el8_6, kernel-tools 4.18.0-372.95.1.el8_6, python3-perf 4.18.0-372.95.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1188
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.51.1.el8_8, kernel 4.18.0-477.51.1.el8_8, bpftool 4.18.0-477.51.1.el8_8, kernel-core 4.18.0-477.51.1.el8_8, kernel-tools 4.18.0-477.51.1.el8_8, python3-perf 4.18.0-477.51.1.el8_8, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1404
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) perf 5.14.0-284.55.1.el9_2, rtla 5.14.0-284.55.1.el9_2, bpftool 7.0.0-284.55.1.el9_2, kernel 5.14.0-284.55.1.el9_2, kernel-64k 5.14.0-284.55.1.el9_2, kernel-core 5.14.0-284.55.1.el9_2, +35 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1018
  • Red Hat Enterprise Linux CRB (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, libperf 5.14.0-427.13.1.el9_4, +48 more Red Hat Enterprise Linux NFV (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, libperf 5.14.0-427.13.1.el9_4, +48 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:2394
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-modules 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-core 5.14.0-284.55.1.rt14.340.el9_2, +6 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-core 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-modules 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-kvm 5.14.0-284.55.1.rt14.340.el9_2, kernel-rt-debug-core 5.14.0-284.55.1.rt14.340.el9_2, +6 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1019
  • Red Hat Enterprise Linux RT (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, libperf 5.14.0-427.13.1.el9_4, +48 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:2394
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.95.1.el8_6, kernel 4.18.0-372.95.1.el8_6, bpftool 4.18.0-372.95.1.el8_6, kernel-core 4.18.0-372.95.1.el8_6, kernel-tools 4.18.0-372.95.1.el8_6, python3-perf 4.18.0-372.95.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:1188
  • Red Hat CodeReady Linux Builder (v. 8) kernel-headers 4.18.0-513.5.1.el8_9, kernel-cross-headers 4.18.0-513.5.1.el8_9 Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-headers 4.18.0-372.95.1.el8_6, kernel-cross-headers 4.18.0-372.95.1.el8_6 Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-headers 4.18.0-477.51.1.el8_8, kernel-cross-headers 4.18.0-477.51.1.el8_8 Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-headers 5.14.0-284.55.1.el9_2, kernel-cross-headers 5.14.0-284.55.1.el9_2 Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux AppStream (v. 9) kernel-headers 5.14.0-427.13.1.el9_4, kernel-cross-headers 5.14.0-427.13.1.el9_4
    +10 more products
    Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-headers 5.14.0-284.55.1.el9_2, kernel-cross-headers 5.14.0-284.55.1.el9_2 Red Hat Enterprise Linux BaseOS (v. 8) kernel-headers 4.18.0-513.5.1.el8_9, kernel-cross-headers 4.18.0-513.5.1.el8_9 Red Hat Enterprise Linux BaseOS (v. 9) kernel-headers 5.14.0-427.13.1.el9_4, kernel-cross-headers 5.14.0-427.13.1.el9_4 Red Hat Enterprise Linux BaseOS EUS (v.8.6) kernel-headers 4.18.0-372.95.1.el8_6, kernel-cross-headers 4.18.0-372.95.1.el8_6 Red Hat Enterprise Linux BaseOS EUS (v.8.8) kernel-headers 4.18.0-477.51.1.el8_8, kernel-cross-headers 4.18.0-477.51.1.el8_8 Red Hat Enterprise Linux BaseOS EUS (v.9.2) kernel-headers 5.14.0-284.55.1.el9_2, kernel-cross-headers 5.14.0-284.55.1.el9_2 Red Hat Enterprise Linux CRB (v. 9) kernel-headers 5.14.0-427.13.1.el9_4, kernel-cross-headers 5.14.0-427.13.1.el9_4 Red Hat Enterprise Linux NFV (v. 9) kernel-headers 5.14.0-427.13.1.el9_4, kernel-cross-headers 5.14.0-427.13.1.el9_4 Red Hat Enterprise Linux RT (v. 9) kernel-headers 5.14.0-427.13.1.el9_4, kernel-cross-headers 5.14.0-427.13.1.el9_4 Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-headers 4.18.0-372.95.1.el8_6, kernel-cross-headers 4.18.0-372.95.1.el8_6
    not affected: vulnerable code not present “To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.