Description
In the Linux kernel, the following vulnerability has been resolved:
vhost/vsock: Use kvmalloc/kvfree for larger packets.
When copying a large file over sftp over vsock, data size is usually 32kB,
and kmalloc seems to fail to try to allocate 32 32kB regions.
vhost-5837: page allocation failure: order:4, mode:0x24040c0
Call Trace:
[<ffffffffb6a0df64>] dump_stack+0x97/0xdb
[<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138
[<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8
[<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d
[<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19
[<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb
[<ffffffffb66682f3>] __kmalloc+0x177/0x1f7
[<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d
[<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock]
[<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost]
[<ffffffffb683ddce>] kthread+0xfd/0x105
[<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost]
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
[<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80
[<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3
Work around by doing kvmalloc instead.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 4.8 | 4.14.296 |
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 | 6.0.3-1 | — |
| Debian 13 | linux | 6.0.3-1 | — |
| Debian 12 | linux | 6.0.3-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 22.04 LTS | linux-bluefield | 5.15.0-1014.16 | — |
| Ubuntu 24.04 LTS | linux-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux +1 | 5.15.0-60.66 | — |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1030.34 | — |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1033.40 | — |
| Ubuntu 22.04 LTS | linux-azure-fde | 5.15.0-1033.40.1 | — |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1029.36 | — |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1027.32 | — |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1015.19 | — |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1025.28 | — |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1025.30 | — |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1028.33 | — |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1017.17 | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1029.35 | — |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1024.26 | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-139.156 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1096.104 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1030.34~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1103.109 | — |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1033.40~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1058.64 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1100.109 | — |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1029.36~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-60.66~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1044.49 | — |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1025.30~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-iot | 5.4.0-1012.14 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1086.92 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1093.102 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1029.35~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1080.91 | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1029.33~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-xilinx-zynqmp | 5.4.0-1021.25 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-204.215 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1150.163 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1096.104~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1161.176 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1103.109~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1145.161 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1100.109~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-139.156~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1044.49~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1135.140 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1114.125 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1093.102~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1080.91~18.04.1 | — |
Show 7 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 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 20.04 LTS | linux-aws-fips | 5.4.0-1096.104+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1103.109+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1072.81 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1100.109+fips1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2089.95 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2070.76 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1107.118 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2054.59 | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1151.164~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1162.177~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1146.162~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-206.217~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1115.126~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1162.177~14.04.1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.0.0-284.11.1.el9_2 | RHSA-2023:2458 |
| RHEL 9 | perf +48 | 5.14.0-284.11.1.el9_2 | RHSA-2023:2458 |
| RHEL 8 | perf +26 | 4.18.0-477.10.1.el8_8 | RHSA-2023:2951 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLES 15 SP4 | kernel-64kb +6 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLES 15 SP3 | kernel-64kb +7 | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
| SLES 12 SP5 | kernel-syms +2 | 4.12.14-122.275.1 | SUSE-SU-2025:03614-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLES for SAP 15 SP5 | kernel-docs +4 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLES for SAP 15 SP4 | kernel-docs +4 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
| SLES for SAP 15 SP3 | kernel-docs +5 | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.109.1 | SUSE-SU-2025:3761-1 |
| SLE Micro 5.5 | kernel-source +1 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.133.1 | SUSE-SU-2025:3716-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.133.1 | SUSE-SU-2025:3716-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.223.1 | SUSE-SU-2025:03613-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.223.1 | SUSE-SU-2025:03613-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_31 | 1-150500.11.3.1 | SUSE-SU-2025:03615-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_45 | 1-150400.9.3.1 | SUSE-SU-2025:03628-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_62 | 1-150300.7.3.1 | SUSE-SU-2025:03626-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.275.1 | SUSE-SU-2025:03614-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_73 | 1-8.3.1 | SUSE-SU-2025:03614-1 |
| SLE HPC 15 SP5 | kernel-64kb +5 | 5.14.21-150500.55.124.1 | SUSE-SU-2025:03615-1 |
| SLE HPC 15 SP5 | kernel-default-base | 5.14.21-150500.55.124.1.150500.6.59.1 | SUSE-SU-2025:03615-1 |
| SLE HPC 15 SP4 | kernel-64kb +5 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SLE HPC 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
| SUSE Manager Server LTS 4.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Server LTS 4.3 | kernel-syms +3 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-default-base | 5.14.21-150400.24.179.1.150400.24.92.1 | SUSE-SU-2025:03628-1 |
| SUSE Manager Proxy LTS 4.3 | kernel-syms +2 | 5.14.21-150400.24.179.1 | SUSE-SU-2025:03628-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +6 | 5.3.18-150300.59.221.1 | SUSE-SU-2025:03626-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.221.1.150300.18.132.1 | SUSE-SU-2025:03626-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | kernel-livepatch-4.14.296-222.539 | 1.0-0.amzn2 | ALAS2-2022-1876 |
| Amazon Linux 2 | perf +8 | 4.14.296-222.539.amzn2 | ALAS2-2022-1876 |
Advisories 12
- WID-SEC-2025-2053 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 9, 2026
- RHSA-2023:2951 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2023:2458 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- WID-SEC-2026-0349 Dell Avamar und NetWorker: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- ALAS2-2022-1876 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 8, 2026
- SUSE-SU-2025:03613-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03615-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03626-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3761-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03628-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03614-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:3716-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/stable/c/0d720c3f0a03e97867deab7e480ba3d3e19837ba
- https://git.kernel.org/stable/c/7aac8c63f604e6a6a46560c0f0188cd0332cf320
- https://git.kernel.org/stable/c/e6d0152c95108651f1880c1ddfab47cb9e3e62d0
- https://git.kernel.org/stable/c/b4a5905fd2ef841cd61e969ea692c213c2e5c1f7
- https://git.kernel.org/stable/c/e28a4e7f0296824c61a81e7fd54ab48bad3e75ad
- https://git.kernel.org/stable/c/a99fc6d818161d6f1ff3307de8bf5237f6cc34d8
- https://git.kernel.org/stable/c/36c9f340c60413e28f980c0224c4e9d35851526b
- https://git.kernel.org/stable/c/0e3f72931fc47bb81686020cc643cde5d9cd0bb8