Description
A flaw was found in the Linux kernel's netdevsim device driver, within the scheduling of events. This issue results from the improper management of a reference count. This may allow an attacker to create a denial of service condition on the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Linux kernel's netdevsim device driver | Fixed in kernel v6.0-rc1 | — |
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 | 5.19.6-1 | — |
| Debian 13 | linux | 5.19.6-1 | — |
| Debian 12 | linux | 5.19.6-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-53.59 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1023.27 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1023.29 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1024.30.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1022.29 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1020.25 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1008.12 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1018.21 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1018.23 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1021.26 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1015.15 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1022.28 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1018.20 | — |
| Ubuntu 22.04 LTS | linux-riscv +3 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 +1 | 5.15.0-1023.27~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1023.29~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure-fde-5.15 | 5.15.0-1029.36~20.04.1.1 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1022.29~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1020.25~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gkeop-5.15 | 5.15.0-1008.12~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-53.59~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1018.23~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1022.28~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv +23 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1025.28 | — |
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 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 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 |
| 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 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | dtb-aarch64 +10 | 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 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.10-15.42 | 1.0-0.amzn2023 | ALAS2023-2023-070 |
| Amazon Linux 2023 | perf +12 | 6.1.10-15.42.amzn2023 | ALAS2023-2023-070 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.111.1-1 | — |
Advisories 5
- SUSE-SU-2023:2141-1 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
- ALAS2023-2023-070 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 10, 2024
- WID-SEC-2023-0968 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 28, 2024