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9.9
CVE-2026-64535: Linux kernel NVMe/TCP can double-cleanup on data mismatch
CVE-2026-64535 · published 3 months ago
Summary
Certain Linux kernel builds for cloud platforms may mishandle a failed integrity check on NVMe over TCP transfers, causing the system to try to clean up the same request twice. This can lead to crashes or instability during data transfers. Update the kernel to the latest patched version provided by your Linux distribution to fix the problem.
What to do
- Update debian linux to version 7.1.3-1.
- Update debian linux to version 6.1.180-1.aikido.164.
- Update debian rootio-linux to version 6.1.180-1.aikido.164.
- Update canonical linux-aws-7.0 to version 7.0.0-1013.13~24.04.1.
- Update canonical linux-hwe-7.0 to version 7.0.0-34.34~24.04.1.
- Update canonical linux-nvidia-tegra to version 6.8.0-1035.38.
- Update canonical linux-riscv-7.0 to version 7.0.0-34.34.1~24.04.1.
- Update canonical linux to version 7.0.0-34.34.
- Update canonical linux-aws to version 7.0.0-1013.13.
- Update canonical linux-ibm to version 7.0.0-1014.14.
- Update canonical linux-oracle to version 7.0.0-1012.12.
- Update canonical linux-raspi to version 7.0.0-1020.20.
- Update canonical linux-realtime to version 7.0.0-34.34.1.
- Update canonical linux-riscv to version 7.0.0-34.34.1.
- Update linux kernel to version 6.18.40.
- Update canonical linux-gcp-7.0 to version 7.0.0-1013.13~24.04.1.
- Update canonical linux-gcp to version 7.0.0-1013.13.
- Update canonical linux-oem-7.0 to version 7.0.0-1014.14.
- Update debian linux to version 6.1.180-1.
- Update debian linux to version 6.12.100-1.
- Update debian linux-6.12 to version 6.12.100-1~deb12u1.
- Update canonical linux-oracle-7.0 to version 7.0.0-1012.12~24.04.1.
- Update canonical linux-aws-5.15 to version 5.15.0-1117.124~20.04.1.
- Update canonical linux-azure-5.15 to version 5.15.0-1123.132~20.04.1.
- Update canonical linux-azure-fde-5.15 to version 5.15.0-1122.131~20.04.1.
- Update canonical linux-gcp-5.15 to version 5.15.0-1118.128~20.04.1.
- Update canonical linux-hwe-5.15 to version 5.15.0-198.208~20.04.1.
- Update canonical linux-ibm-5.15 to version 5.15.0-1111.115~20.04.1.
- Update canonical linux-intel-iotg-5.15 to version 5.15.0-1112.118~20.04.1.
- Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-195.205~20.04.1.
- Update canonical linux-oracle-5.15 to version 5.15.0-1114.120~20.04.1.
- Update canonical linux to version 5.15.0-198.208.
- Update canonical linux-aws to version 5.15.0-1117.124.
- Update canonical linux-azure to version 5.15.0-1123.132.
- Update canonical linux-azure-fde to version 5.15.0-1122.131.
- Update canonical linux-gcp to version 5.15.0-1118.128.
- Update canonical linux-gke to version 5.15.0-1113.119.
- Update canonical linux-gkeop to version 5.15.0-1100.108.
- Update canonical linux-ibm to version 5.15.0-1111.115.
- Update canonical linux-intel-iotg to version 5.15.0-1112.118.
- Update canonical linux-kvm to version 5.15.0-1109.114.
- Update canonical linux-lowlatency to version 5.15.0-195.205.
- Update canonical linux-oracle to version 5.15.0-1114.120.
- Update canonical linux-xilinx-zynqmp to version 5.15.0-1080.84.
- Update canonical linux-intel-iot-realtime to version 5.15.0-1109.111.
- Update canonical linux-realtime to version 5.15.0-1116.125.
- Update canonical linux-aws-fips to version 5.15.0-1117.124+fips1.
- Update canonical linux-azure-fips to version 5.15.0-1123.132+fips1.
- Update canonical linux-fips to version 5.15.0-198.208+fips1.
- Update canonical linux-gcp-fips to version 5.15.0-1118.128+fips1.
- Update canonical linux-azure-7.0 to version 7.0.0-1017.17~24.04.1.
- Update canonical linux-azure-fde-7.0 to version 7.0.0-1016.16~24.04.1.
- Update canonical linux-azure to version 7.0.0-1017.17.
- Update canonical linux-azure-fde to version 7.0.0-1016.16.
- Update canonical linux-gke to version 7.0.0-1007.8.
- Update canonical linux-nvidia to version 5.15.0-1112.113.
- Update linux to version 6.1.190-1.aikido.167.
- Update rootio-linux to version 6.1.190-1.aikido.167.
- Update canonical linux-riscv-5.15 to version 5.15.0-1111.115~20.04.1.
- Update canonical linux-bluefield to version 5.15.0-1101.103.
- Update canonical linux to version 6.8.0-147.147.
- Update canonical linux-aws to version 6.8.0-1067.70.
- Update canonical linux-azure to version 6.8.0-1071.79.
- Update canonical linux-azure-fde to version 6.8.0-1069.76.
- Update canonical linux-gcp to version 6.8.0-1071.79.
- Update canonical linux-gke to version 6.8.0-1066.74.
- Update canonical linux-gkeop to version 6.8.0-1052.56.
- Update canonical linux-ibm to version 6.8.0-1067.68.
- Update canonical linux-lowlatency to version 6.8.0-147.147.1.
- Update canonical linux-oracle to version 6.8.0-1064.67.
- Update canonical linux-bluefield to version 6.8.0-1033.38.
- Update canonical linux-realtime to version 6.8.1-1062.63.
- Update canonical linux-aws-fips to version 6.8.0-1067.70+fips1.
- Update canonical linux-azure-fips to version 6.8.0-1071.79+fips1.
- Update canonical linux-fips to version 6.8.0-147.147+fips1.
- Update canonical linux-gcp-fips to version 6.8.0-1071.79+fips1.
- Update canonical linux-nvidia-tegra-5.15 to version 5.15.0-1070.72~20.04.1.
- Update canonical linux-nvidia-tegra to version 5.15.0-1070.72.
- Update canonical linux-nvidia-tegra-igx to version 5.15.0-1059.59.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gkeop-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.3 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-aws-5.15 |
< 5.15.0-1117.124~20.04.1 Fix: upgrade to 5.15.0-1117.124~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-aws-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-azure-5.15 |
< 5.15.0-1123.132~20.04.1 Fix: upgrade to 5.15.0-1123.132~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-azure-fde-5.15 |
< 5.15.0-1122.131~20.04.1 Fix: upgrade to 5.15.0-1122.131~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-gcp-5.15 |
< 5.15.0-1118.128~20.04.1 Fix: upgrade to 5.15.0-1118.128~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-hwe-5.15 |
< 5.15.0-198.208~20.04.1 Fix: upgrade to 5.15.0-198.208~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-ibm-5.15 |
< 5.15.0-1111.115~20.04.1 Fix: upgrade to 5.15.0-1111.115~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-intel-iotg-5.15 |
< 5.15.0-1112.118~20.04.1 Fix: upgrade to 5.15.0-1112.118~20.04.1
|
| Ubuntu:Pro:20.04:LTS | canonical | linux-lowlatency-hwe-5.15 |
< 5.15.0-195.205~20.04.1 Fix: upgrade to 5.15.0-195.205~20.04.1
|
| Ubuntu:Pro:20.04:LTS | canonical | linux-nvidia-tegra-5.15 |
< 5.15.0-1070.72~20.04.1 Fix: upgrade to 5.15.0-1070.72~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-oem-5.10 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.14 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.6 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.13 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-oracle-5.15 |
< 5.15.0-1114.120~20.04.1 Fix: upgrade to 5.15.0-1114.120~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.8 | All versions |
Showing 50 of 206. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:20.04:LTS | canonical | linux-raspi2 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.11 | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-riscv-5.15 |
< 5.15.0-1111.115~20.04.1 Fix: upgrade to 5.15.0-1111.115~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux |
< 5.15.0-198.208 Fix: upgrade to 5.15.0-198.208
|
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws |
< 5.15.0-1117.124 Fix: upgrade to 5.15.0-1117.124
|
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-ibm |
< 5.15.0-1111.115 Fix: upgrade to 5.15.0-1111.115
|
| Ubuntu:22.04:LTS | canonical | linux-ibm-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-intel-iotg |
< 5.15.0-1112.118 Fix: upgrade to 5.15.0-1112.118
|
| Ubuntu:22.04:LTS | canonical | linux-kvm |
< 5.15.0-1109.114 Fix: upgrade to 5.15.0-1109.114
|
| Ubuntu:22.04:LTS | canonical | linux-lowlatency |
< 5.15.0-195.205 Fix: upgrade to 5.15.0-195.205
|
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia |
< 5.15.0-1112.113 Fix: upgrade to 5.15.0-1112.113
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-tegra |
< 5.15.0-1070.72 Fix: upgrade to 5.15.0-1070.72
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-tegra-igx |
< 5.15.0-1059.59 Fix: upgrade to 5.15.0-1059.59
|
| Ubuntu:22.04:LTS | canonical | linux-oem-5.17 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.0 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.1 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle |
< 5.15.0-1114.120 Fix: upgrade to 5.15.0-1114.120
|
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-raspi | All versions |
| Ubuntu:22.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-xilinx-zynqmp |
< 5.15.0-1080.84 Fix: upgrade to 5.15.0-1080.84
|
| Ubuntu:Nvidia-BlueField:22.04:LTS | canonical | linux-bluefield |
< 5.15.0-1101.103 Fix: upgrade to 5.15.0-1101.103
|
| Ubuntu:Pro:FIPS-preview:22.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-7.0 |
< 7.0.0-1013.13~24.04.1 Fix: upgrade to 7.0.0-1013.13~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-7.0 |
< 7.0.0-1017.17~24.04.1 Fix: upgrade to 7.0.0-1017.17~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-7.0 |
< 7.0.0-1016.16~24.04.1 Fix: upgrade to 7.0.0-1016.16~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-7.0 |
< 7.0.0-1013.13~24.04.1 Fix: upgrade to 7.0.0-1013.13~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-7.0 |
< 7.0.0-34.34~24.04.1 Fix: upgrade to 7.0.0-34.34~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-7.0 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-lowlatency | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-7.0 |
< 7.0.0-1012.12~24.04.1 Fix: upgrade to 7.0.0-1012.12~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-7.0 |
< 7.0.0-34.34.1~24.04.1 Fix: upgrade to 7.0.0-34.34.1~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-xilinx | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.14 | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.17 | All versions |
| Ubuntu:26.04:LTS | canonical | linux-nvidia-bos | All versions |
| Ubuntu:26.04:LTS | canonical | linux-oem-7.0 |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| – | linux | linux |
5.12 < 96fe2513df590e74b04253a45089cae75569570e < dfb902462bca478f050224ec7a7195aafa7643b1 |
| Debian:11 | debian | linux | All versions |
| Debian:12 | debian | linux |
< 6.1.180-1 Fix: upgrade to 6.1.180-1
|
| Debian:13 | debian | linux |
< 6.12.100-1 Fix: upgrade to 6.12.100-1
|
| Debian:14 | debian | linux |
< 7.1.3-1 Fix: upgrade to 7.1.3-1
|
| Root:Debian:12 | debian | linux |
< 6.1.180-1.aikido.164 Fix: upgrade to 6.1.180-1.aikido.164
|
| Root:Debian:12 | debian | rootio-linux |
< 6.1.180-1.aikido.164 Fix: upgrade to 6.1.180-1.aikido.164
|
| Ubuntu:24.04:LTS | canonical | linux-nvidia-tegra |
< 6.8.0-1035.38 Fix: upgrade to 6.8.0-1035.38
|
| Ubuntu:26.04:LTS | canonical | linux |
< 7.0.0-34.34 Fix: upgrade to 7.0.0-34.34
|
| Ubuntu:26.04:LTS | canonical | linux-aws |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-ibm |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Ubuntu:26.04:LTS | canonical | linux-oracle |
< 7.0.0-1012.12 Fix: upgrade to 7.0.0-1012.12
|
| Ubuntu:26.04:LTS | canonical | linux-raspi |
< 7.0.0-1020.20 Fix: upgrade to 7.0.0-1020.20
|
| Ubuntu:26.04:LTS | canonical | linux-realtime |
< 7.0.0-34.34.1 Fix: upgrade to 7.0.0-34.34.1
|
| Ubuntu:26.04:LTS | canonical | linux-riscv |
< 7.0.0-34.34.1 Fix: upgrade to 7.0.0-34.34.1
|
| Linux | linux | kernel |
>= 6.7.0, < 6.18.40 Fix: upgrade to 6.18.40
|
| Ubuntu:26.04:LTS | canonical | linux-gcp |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Debian:12 | debian | linux-6.12 |
< 6.12.100-1~deb12u1 Fix: upgrade to 6.12.100-1~deb12u1
|
| Ubuntu:22.04:LTS | canonical | linux-azure |
< 5.15.0-1123.132 Fix: upgrade to 5.15.0-1123.132
|
| Ubuntu:22.04:LTS | canonical | linux-azure-fde |
< 5.15.0-1122.131 Fix: upgrade to 5.15.0-1122.131
|
| Ubuntu:22.04:LTS | canonical | linux-gcp |
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| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-aws-fips |
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| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-azure-fips |
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| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-gcp-fips |
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| Ubuntu:26.04:LTS | canonical | linux-azure |
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| Ubuntu:26.04:LTS | canonical | linux-azure-fde |
< 7.0.0-1016.16 Fix: upgrade to 7.0.0-1016.16
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| Ubuntu:26.04:LTS | canonical | linux-gke |
< 7.0.0-1007.8 Fix: upgrade to 7.0.0-1007.8
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| Root:Debian:12 | – | linux |
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| Root:Debian:12 | – | rootio-linux |
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| Ubuntu:24.04:LTS | canonical | linux |
< 6.8.0-147.147 Fix: upgrade to 6.8.0-147.147
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| Ubuntu:24.04:LTS | canonical | linux-aws |
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| Ubuntu:24.04:LTS | canonical | linux-azure-fde |
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| Ubuntu:24.04:LTS | canonical | linux-gcp |
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| Ubuntu:24.04:LTS | canonical | linux-gkeop |
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| Ubuntu:24.04:LTS | canonical | linux-ibm |
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| Ubuntu:24.04:LTS | canonical | linux-lowlatency |
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| Ubuntu:24.04:LTS | canonical | linux-oracle |
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| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield |
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| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime |
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| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-azure-fips |
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| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-fips |
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| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-gcp-fips |
< 6.8.0-1071.79+fips1 Fix: upgrade to 6.8.0-1071.79+fips1
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Original advisory text
nvmet-tcp: Fix potential UAF when ddgst mismatch
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: Fix potential UAF when ddgst mismatch
Shivam Kumar found via vulnerability testing:
When data digest is enabled on an NVMe/TCP connection and a digest
mismatch occurs on a non-final H2C_DATA PDU during an R2T-based
data transfer, the digest error handler in nvmet_tcp_try_recv_ddgst()
calls nvmet_req_uninit() — which performs percpu_ref_put() on the
submission queue — but does NOT mark the command as completed. It
does not set cqe->status, does not modify rbytes_done, and does not
clear any flag. When the subsequent fatal error triggers queue
teardown, nvmet_tcp_uninit_data_in_cmds() iterates all commands,
checks nvmet_tcp_need_data_in() for each one, and finds that the
already-uninited command still appears to need data (because
rbytes_done < transfer_len and cqe->status == 0). It therefore calls
nvmet_req_uninit() a second time on the same command — a double
percpu_ref_put against a single percpu_ref_get.
nvmet-tcp: Fix potential UAF when ddgst mismatch
Shivam Kumar found via vulnerability testing:
When data digest is enabled on an NVMe/TCP connection and a digest
mismatch occurs on a non-final H2C_DATA PDU during an R2T-based
data transfer, the digest error handler in nvmet_tcp_try_recv_ddgst()
calls nvmet_req_uninit() — which performs percpu_ref_put() on the
submission queue — but does NOT mark the command as completed. It
does not set cqe->status, does not modify rbytes_done, and does not
clear any flag. When the subsequent fatal error triggers queue
teardown, nvmet_tcp_uninit_data_in_cmds() iterates all commands,
checks nvmet_tcp_need_data_in() for each one, and finds that the
already-uninited command still appears to need data (because
rbytes_done < transfer_len and cqe->status == 0). It therefore calls
nvmet_req_uninit() a second time on the same command — a double
percpu_ref_put against a single percpu_ref_get.
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://security-tracker.debian.org/tracker/CVE-2026-64535 Vendor Advisory
- https://git.kernel.org/stable/c/7e558308eba14c8136cb1e615f0c850f76d1fc0a URL
- https://git.kernel.org/stable/c/dfb902462bca478f050224ec7a7195aafa7643b1 URL
- https://ubuntu.com/security/notices/USN-8781-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8816-2 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-64535 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-64535 Third Party Advisory
- https://git.kernel.org/linus/dbbd07d0a7020b80f6a7028e561908f7b83b3d5a Third Party Advisory
- https://ubuntu.com/security/notices/USN-8816-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8816-4 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8876-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8878-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8879-1 Vendor Advisory
- https://git.kernel.org/stable/c/088ee46c18d99baef453afd74181dd40ade044ad URL
- https://git.kernel.org/stable/c/6f9442983a3e4227afd1c83a5251ddbca585ea21 URL
- https://git.kernel.org/stable/c/96fe2513df590e74b04253a45089cae75569570e URL
- https://git.kernel.org/stable/c/dbbd07d0a7020b80f6a7028e561908f7b83b3d5a URL
- https://git.kernel.org/stable/c/e091ff83d962f9ed00d9bd70443676de9fe98bdc URL
- https://ubuntu.com/security/notices/USN-8816-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8877-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8875-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8888-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8888-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8875-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8917-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8918-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8963-1 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64535... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-64535 Vendor Advisory
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker full control
Severity
9.9
Critical
Type
CWE-415Double Free
Timeline
Published27 Jul 2026
Updated4 Nov 2026
First seen27 Jul 2026
Sources
CVE-2026-64535 · NVD
CVE-2026-64535 · MITRE
DEBIAN-CVE-2026-64535 · OSV
UBUNTU-CVE-2026-64535 · OSV
CVE-2026-64535 · OSV
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