Description
A NULL pointer dereference vulnerability in the Linux kernel NVMe functionality, in nvmet_setup_auth(), allows an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine. Affected versions v6.0-rc1 to v6.0-rc3, fixed in v6.0-rc4.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Kernel | Linux kernel 6.0-rc4 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | linux-riscv | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2023:2646-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2023:2871-1 |
| SLES 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.46.1 | SUSE-SU-2023:0433-1 |
| SLES 15 SP4 | kernel-azure +2 | 5.14.21-150400.14.37.1 | SUSE-SU-2023:1608-1, SUSE-SU-2023:0774-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.46.1.150400.24.17.3 | SUSE-SU-2023:0433-1 |
| SLES 15 SP4 | kernel-docs | 5.14.21-150400.24.46.2 | SUSE-SU-2023:0433-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.46.1 | SUSE-SU-2023:0433-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.46.1.150400.24.17.3 | SUSE-SU-2023:0433-1 |
| SLE Micro 5.3 | kernel-rt | 5.14.21-150400.15.11.1 | SUSE-SU-2023:0488-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_1 | 1-150500.11.5.1 | SUSE-SU-2023:2809-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_1 | 1-150500.11.7.1 | SUSE-SU-2023:2871-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.46.1 | SUSE-SU-2023:0433-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4-RT_Update_3 | 1-150400.1.3.1 | SUSE-SU-2023:0488-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_8 | 1-150400.9.3.3 | SUSE-SU-2023:0433-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2023:2809-1 |
| SUSE Real Time Module 15 SP4 | kernel-rt +3 | 5.14.21-150400.15.11.1 | SUSE-SU-2023:0488-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.7.1 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.3.1 | SUSE-SU-2023:2646-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.7.1.150500.6.2.5 | SUSE-SU-2023:2871-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.5.1 | SUSE-SU-2023:2809-1 |
| openSUSE Leap 15.4 | dtb-aarch64 +9 | 5.14.21-150400.24.46.1 | SUSE-SU-2023:0433-1 |
| openSUSE Leap 15.4 | kernel-azure +2 | 5.14.21-150400.14.37.1 | SUSE-SU-2023:1608-1, SUSE-SU-2023:0774-1 |
| openSUSE Leap 15.4 | kernel-default-base | 5.14.21-150400.24.46.1.150400.24.17.3 | SUSE-SU-2023:0433-1 |
| openSUSE Leap 15.4 | kernel-docs | 5.14.21-150400.24.46.2 | SUSE-SU-2023:0433-1 |
| openSUSE Leap 15.4 | kernel-rt +3 | 5.14.21-150400.15.11.1 | SUSE-SU-2023:0488-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.46.1 | SUSE-SU-2023:0433-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.46.1.150400.24.17.3 | SUSE-SU-2023:0433-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.11.1 | SUSE-SU-2023:0488-1 |
Advisories 8
- SUSE-SU-2023:0774-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0488-1 Security update for the Linux-RT Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2646-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1608-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2871-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0433-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2809-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0015 Linux Kernel: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Feb 27, 2024