Description
A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. This issue occurs due to the lack of proper validation of user-supplied data, which can result in memory access past the end of an array. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | kernel | 4.20 – < 5.4.202, 5.5 – < 5.10.127, 5.11 – < 5.15.51, 5.16 – < 5.18.8 | 5.4.202 |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 5.18.14-1 | — |
| Debian 13 | linux | 5.18.14-1 | — |
| Debian 12 | linux | 5.18.14-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | linux-vmware | No fix yet | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-48.54 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1020.24 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1020.25 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1024.30.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1018.24 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1016.19 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1003.5 | — |
| Ubuntu 22.04 LTS | linux-ibm +1 | 5.15.0-1015.17 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1016.21 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1018.22 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1007.7 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1018.23 | — |
| Ubuntu 22.04 LTS | linux-riscv +3 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-126.142 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1085.92 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1020.24~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1091.96 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1020.25~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1046.51 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1089.97 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1018.24~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke | 5.4.0-1083.89 | — |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1016.19~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1053.56 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-48.54~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1033.37 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1016.21~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1004.6 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1075.80 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1083.91 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1018.23~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1070.80 | — |
| Ubuntu 20.04 LTS | linux-riscv +23 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1019.22~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1085.92~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1091.96~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1089.97~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-126.142~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1033.37~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1083.91~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1070.80~18.04.1 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1021.21 | — |
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1085.92+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1091.96+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1061.69 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1089.97+fips1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | kernel-rt +12 | 5.14.0-162.6.1.rt21.168.el9_1 | RHSA-2022:7933 |
| RHEL 9 | perf +29 | 5.14.0-162.6.1.el9_1 | RHSA-2022:8267 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | kernel-rt +12 | 5.14.0-70.58.1.rt21.129.el9_0 | RHSA-2023:3470 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_30_1 | 1-6.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_36_1 | 1-5.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_43_1 | 1-4.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_49_1 | 1-3.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_50_2 | 1-2.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | kpatch-patch-5_14_0-70_53_1 | 1-1.el9_0 | RHSA-2023:3490 |
| RHEL 9.0 EUS | perf +29 | 5.14.0-70.58.1.el9_0 | RHSA-2023:3465 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.49.1 | SUSE-SU-2023:2141-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.63.1.150400.24.27.1 | SUSE-SU-2023:2140-1 |
| SLES 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLES 15 SP3 | kernel-syms | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.151.1.150200.9.73.1 | SUSE-SU-2023:2146-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.151.1 | SUSE-SU-2023:2146-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLES for SAP 15 SP3 | kernel-docs +4 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLES for SAP 15 SP3 | kernel-syms | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.151.1.150200.9.73.1 | SUSE-SU-2023:2146-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.151.1 | SUSE-SU-2023:2146-1 |
| SLE Real Time 15 SP3 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLE Real Time 15 SP3 | kernel-docs +4 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLE Real Time 15 SP3 | kernel-syms | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.63.1.150400.24.27.1 | SUSE-SU-2023:2140-1 |
| SLE Micro 5.4 | kernel-rt | 5.14.21-150400.15.28.2 | SUSE-SU-2023:2231-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.63.1.150400.24.27.1 | SUSE-SU-2023:2140-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.28.2 | SUSE-SU-2023:2231-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.127.1 | SUSE-SU-2023:2147-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.127.1 | SUSE-SU-2023:2147-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_7 | 1-150400.1.5.2 | SUSE-SU-2023:2231-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_12 | 1-150400.9.3.1 | SUSE-SU-2023:2140-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_32 | 1-150300.7.3.2 | SUSE-SU-2023:2148-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.151.1 | SUSE-SU-2023:2146-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_36 | 1-150200.5.3.1 | SUSE-SU-2023:2146-1 |
| SLE HPC 15 SP3 | kernel-64kb +5 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SLE HPC 15 SP3 | kernel-syms | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.151.1.150200.9.73.1 | SUSE-SU-2023:2146-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.151.1 | SUSE-SU-2023:2146-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +1 | 5.14.21-150400.15.28.2 | SUSE-SU-2023:2231-1 |
| SUSE Real Time Module 15 SP4 | kernel-syms-rt +1 | 5.14.21-150400.15.28.1 | SUSE-SU-2023:2231-1 |
| SUSE Real Time Module 15 SP3 | kernel-rt +3 | 5.3.18-150300.127.1 | SUSE-SU-2023:2147-1 |
| SUSE Manager Server 4.2 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SUSE Manager Server 4.2 | kernel-source +3 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SUSE Manager Proxy 4.2 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SUSE Manager Proxy 4.2 | kernel-source +2 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +5 | 5.3.18-150300.59.121.2 | SUSE-SU-2023:2148-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.121.2.150300.18.70.2 | SUSE-SU-2023:2148-1 |
| SUSE Enterprise Storage 7.1 | kernel-syms | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1 |
| SUSE Enterprise Storage 7 | kernel-default-base | 5.3.18-150200.24.151.1.150200.9.73.1 | SUSE-SU-2023:2146-1 |
| SUSE Enterprise Storage 7 | kernel-docs +5 | 5.3.18-150200.24.151.1 | SUSE-SU-2023:2146-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 | 5.3.18-150300.59.121.1 | SUSE-SU-2023:2148-1, SUSE-SU-2023:2140-1 |
| openSUSE Leap 15.4 | kernel-64kb +9 | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.49.1 | SUSE-SU-2023:2141-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.63.1.150400.24.27.1 | SUSE-SU-2023:2140-1 |
| openSUSE Leap 15.4 | kernel-rt +1 | 5.14.21-150400.15.28.2 | SUSE-SU-2023:2231-1 |
| openSUSE Leap 15.4 | kernel-syms-rt +1 | 5.14.21-150400.15.28.1 | SUSE-SU-2023:2231-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.63.1 | SUSE-SU-2023:2140-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.63.1.150400.24.27.1 | SUSE-SU-2023:2140-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.28.2 | SUSE-SU-2023:2231-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.111.1-1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
bluefrostsecurity/CVE-2023-2008 ★ 39 · Jun 12, 2023
Proof of concept code for CVE-2023-2008
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 12
- RHSA-2022:8267 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2022:7933 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:3470 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2023:3490 Red Hat Security Advisory: kpatch-patch security update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- RHSA-2023:3465 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Sep 30, 2026
- SUSE-SU-2023:2141-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2146-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2148-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2231-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2140-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2147-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0968 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 28, 2024
References
- RHSA-2022:7933 vendor-advisory
- RHSA-2022:8267 vendor-advisory
- RHSA-2023:3465 vendor-advisory
- RHSA-2023:3470 vendor-advisory
- RHSA-2023:3490 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-2008 vdb-entry
- RHBZ#2186862 issue-tracking
- https://www.zerodayinitiative.com/advisories/ZDI-23-441/