Description
A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
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 | 6.3.7-1 | — |
| Debian 13 | linux | 6.3.7-1 | — |
| Debian 12 | linux | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | No fix yet | — |
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +31 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-aws-6.2 | 6.2.0-1007.7~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-nvidia-6.2 | 6.2.0-1009.9 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 12 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 +1 | No fix yet | — |
| 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-updates 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS-preview 22.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux +21 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | linux +12 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.3.0-427.13.1.el9_4 | RHSA-2024:2394 |
| RHEL 9 | rv +64 | 5.14.0-427.13.1.el9_4 | RHSA-2024:2394 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.rt7.342.el8_10 | RHSA-2024:2950 |
| RHEL 8 | perf +26 | 4.18.0-553.el8_10 | RHSA-2024:3138 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | bpftool | 7.3.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux 9 | rv +60 | 5.14.0-427.13.1.el9_4 | ALSA-2024:2394 |
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.rt7.342.el8_10 | ALSA-2024:2950 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.el8_10 | ALSA-2024:3138 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.el8_10 | RXSA-2024:3138, RLSA-2024:3138 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.rt7.342.el8_10 | RLSA-2024:2950 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.28.1 | SUSE-SU-2023:3971-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.17.1 | SUSE-SU-2023:3656-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.28.1.150500.6.11.2 | SUSE-SU-2023:3971-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.88.1 | SUSE-SU-2023:3969-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.66.1 | SUSE-SU-2023:3682-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.88.1.150400.24.40.1 | SUSE-SU-2023:3969-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SLES 15 SP2 | kernel-default +2 | 5.3.18-150200.24.160.2 | SUSE-SU-2023:3390-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.160.2.150200.9.79.2 | SUSE-SU-2023:3390-1 |
| SLES 15 SP2 | kernel-docs | 5.3.18-150200.24.160.3 | SUSE-SU-2023:3390-1 |
| SLES 15 SP2 | kernel-syms +1 | 5.3.18-150200.24.160.1 | SUSE-SU-2023:3390-1 |
| SLES 15 SP1 | kernel-docs +5 | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3392-1 |
Show 25 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.149.1 | SUSE-SU-2023:3681-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.176.1 | SUSE-SU-2023:3705-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLES for SAP 15 SP2 | kernel-default +2 | 5.3.18-150200.24.160.2 | SUSE-SU-2023:3390-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.160.2.150200.9.79.2 | SUSE-SU-2023:3390-1 |
| SLES for SAP 15 SP2 | kernel-docs | 5.3.18-150200.24.160.3 | SUSE-SU-2023:3390-1 |
| SLES for SAP 15 SP2 | kernel-syms +1 | 5.3.18-150200.24.160.1 | SUSE-SU-2023:3390-1 |
| SLES for SAP 15 SP1 | kernel-docs +4 | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3392-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.149.1 | SUSE-SU-2023:3681-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.176.1 | SUSE-SU-2023:3705-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.141.1 | SUSE-SU-2023:3601-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.28.1 | SUSE-SU-2023:3971-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.28.1.150500.6.11.2 | SUSE-SU-2023:3971-1 |
| SLE Micro 5.5 | kernel-rt | 5.14.21-150500.13.18.1 | SUSE-SU-2023:3988-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.88.1 | SUSE-SU-2023:3969-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.88.1.150400.24.40.1 | SUSE-SU-2023:3969-1 |
| SLE Micro 5.4 | kernel-rt | 5.14.21-150400.15.53.1 | SUSE-SU-2023:3964-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.88.1 | SUSE-SU-2023:3969-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.88.1.150400.24.40.1 | SUSE-SU-2023:3969-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.53.1 | SUSE-SU-2023:3964-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SLE Micro 5.2 | kernel-rt | 5.3.18-150300.141.1 | SUSE-SU-2023:3785-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SLE Micro 5.1 | kernel-rt | 5.3.18-150300.141.1 | SUSE-SU-2023:3785-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.28.1 | SUSE-SU-2023:3971-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_4 +1 | 1-150500.11.3.1 | SUSE-SU-2023:3988-1, SUSE-SU-2023:3599-2, SUSE-SU-2023:3599-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_5 | 1-150500.11.5.1 | SUSE-SU-2023:3971-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.88.1 | SUSE-SU-2023:3969-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_12 +1 | 1-150400.1.3.1 | SUSE-SU-2023:3964-1, SUSE-SU-2023:3600-2, SUSE-SU-2023:3600-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_18 | 1-150400.9.3.1 | SUSE-SU-2023:3969-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_36 | 1-150300.7.3.1 | SUSE-SU-2023:3684-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.160.2 | SUSE-SU-2023:3390-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_39 | 1-150200.5.3.2 | SUSE-SU-2023:3390-1 |
| SLE Live Patching 15 SP1 | kernel-default | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3392-1 |
| SLE Live Patching 15 SP1 | kernel-livepatch-SLE15-SP1_Update_43 | 1-150100.3.3.1 | SUSE-SU-2023:3392-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.176.1 | SUSE-SU-2023:3705-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_48 | 1-8.3.1 | SUSE-SU-2023:3705-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SLE HPC 15 SP2 | kernel-default +2 | 5.3.18-150200.24.160.2 | SUSE-SU-2023:3390-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.160.2.150200.9.79.2 | SUSE-SU-2023:3390-1 |
| SLE HPC 15 SP2 | kernel-docs | 5.3.18-150200.24.160.3 | SUSE-SU-2023:3390-1 |
| SLE HPC 15 SP2 | kernel-syms +1 | 5.3.18-150200.24.160.1 | SUSE-SU-2023:3390-1 |
| SLE HPC 15 SP1 | kernel-docs +4 | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3392-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.18.1 | SUSE-SU-2023:3988-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.53.1 | SUSE-SU-2023:3964-1 |
| SUSE Manager Server 4.2 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SUSE Manager Server 4.2 | kernel-source +3 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SUSE Manager Proxy 4.2 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
| SUSE Manager Proxy 4.2 | kernel-source +2 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3684-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.133.1.150300.18.78.1 | SUSE-SU-2023:3684-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.28.1 | SUSE-SU-2023:3971-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.17.1 | SUSE-SU-2023:3656-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.28.1.150500.6.11.2 | SUSE-SU-2023:3971-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.18.1 | SUSE-SU-2023:3988-1 |
| openSUSE Leap 15.5 | kernel-vanilla | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3392-1 |
| openSUSE Leap 15.4 | dtb-aarch64 | 5.3.18-150300.59.133.1 | SUSE-SU-2023:3969-1, SUSE-SU-2023:3684-1 |
| openSUSE Leap 15.4 | kernel-64kb +5 | 5.14.21-150400.24.88.1 | SUSE-SU-2023:3969-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.66.1 | SUSE-SU-2023:3682-1 |
| openSUSE Leap 15.4 | kernel-debug +4 | 4.12.14-150100.197.154.1 | SUSE-SU-2023:3969-1, SUSE-SU-2023:3392-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.88.1.150400.24.40.1 | SUSE-SU-2023:3969-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.53.1 | SUSE-SU-2023:3964-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.3.0-427.13.1.el9_4 | ELSA-2024-2394 |
| Oracle Linux 9 | rv +27 | 5.14.0-427.13.1.el9_4 | ELSA-2024-2394 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.el8_10 | ELSA-2024-3138 |
Advisories 30
- ALSA-2024:2394 Important: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3138 Moderate: kernel security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:2950 Moderate: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:3138 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:2950 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2024:2394 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RXSA-2024:3138 Moderate: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · May 29, 2026
- WID-SEC-2024-1226 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- RLSA-2024:2950 Moderate: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:3138 Moderate: kernel security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2023:3599-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3684-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3599-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3390-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3969-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3601-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3600-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3964-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3785-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3600-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3656-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3988-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3681-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3971-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3392-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1957 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 3, 2026
- SUSE-SU-2023:3682-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:3705-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-3138 Moderate: kernel security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 23, 2024
- ELSA-2024-2394 Important: kernel security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
References
- RHSA-2024:2394 vendor-advisory
- RHSA-2024:2950 vendor-advisory
- RHSA-2024:3138 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-4133 vdb-entry
- RHBZ#2221702 issue-tracking