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5.5
CVE-2026-64309: Linux packages could let attackers gain higher privileges
CVE-2026-64309 · published 5 days ago
Summary
The Linux kernel packages for Ubuntu 22.04, including the standard, HWE edge, AWS, and Azure variants, had a flaw that could let a malicious user increase their access rights on the system. This could lead to unauthorized actions or data exposure. Update to the latest released package versions as soon as possible to close the gap.
What to do
- Update debian linux to version 6.12.96-1.
- Update debian linux to version 7.1.4-1.
- Update bellsoft linux-lts to version 6.12.103-r0.
- Update bellsoft linux-lts to version 6.18.43-r0.
- Update canonical linux-aws-7.0 to version 7.0.0-1012.12~24.04.1.
- Update canonical linux-gcp-7.0 to version 7.0.0-1011.11~24.04.1.
- Update canonical linux-hwe-7.0 to version 7.0.0-31.31~24.04.1.
- Update canonical linux-riscv-7.0 to version 7.0.0-31.31.1~24.04.1.
- Update canonical linux to version 7.0.0-31.31.
- Update canonical linux-aws to version 7.0.0-1012.12.
- Update canonical linux-gcp to version 7.0.0-1011.11.
- Update canonical linux-gke to version 7.0.0-1006.7.
- Update canonical linux-oem-7.0 to version 7.0.0-1013.13.
- Update canonical linux-realtime to version 7.0.0-31.31.1.
- Update canonical linux-riscv to version 7.0.0-31.31.1.
- Update canonical linux-azure-7.0 to version 7.0.0-1014.14~24.04.1.
- Update canonical linux-nvidia-7.0 to version 7.0.0-1018.18~24.04.1.
- Update canonical linux-azure to version 7.0.0-1014.14.
- Update canonical linux-ibm to version 7.0.0-1013.13.
- Update canonical linux-nvidia to version 7.0.0-1018.18.
- Update canonical linux-nvidia-bos to version 7.0.0-2018.18.
- Update canonical linux-oracle to version 7.0.0-1011.11.
- Update canonical linux-raspi to version 7.0.0-1019.19.
- Update canonical linux-oracle-7.0 to version 7.0.0-1011.11~24.04.1.
- Update linux kernel to version 7.1.4.
- Update debian linux-6.12 to version 6.12.100-1~deb12u1.
- Update linux to version 5.15.0-198.208.aikido.116.
- Update rootio-linux to version 5.15.0-198.208.aikido.116.
- Update canonical linux-azure-fde-7.0 to version 7.0.0-1013.13~24.04.1.
- Update canonical linux-azure-fde to version 7.0.0-1013.13.
- Update linux to version 5.15.0-202.212.aikido.118.
- Update rootio-linux to version 5.15.0-202.212.aikido.118.
- Update linux linux to version 74768f73854d647a6462f252dc8782ab8a835211 or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | linux | linux |
< 74768f73854d647a6462f252dc8782ab8a835211 6.16 |
| 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: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:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| 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:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| 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:20.04:LTS | canonical | linux-oracle-5.8 | All 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:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| 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-azure-5.19 | All versions |
Showing 50 of 136. Show the rest
| Ecosystem | Vendor | Product | Affected 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-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | 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-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-intel-iot-realtime | All versions |
| 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-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| 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-6.5 | 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-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: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 |
< 7.0.0-1012.12~24.04.1 Fix: upgrade to 7.0.0-1012.12~24.04.1
|
| 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 |
< 7.0.0-1014.14~24.04.1 Fix: upgrade to 7.0.0-1014.14~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-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-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 |
< 7.0.0-1011.11~24.04.1 Fix: upgrade to 7.0.0-1011.11~24.04.1
|
| 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 |
< 7.0.0-31.31~24.04.1 Fix: upgrade to 7.0.0-31.31~24.04.1
|
| 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 |
< 7.0.0-1018.18~24.04.1 Fix: upgrade to 7.0.0-1018.18~24.04.1
|
| 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 |
< 7.0.0-1011.11~24.04.1 Fix: upgrade to 7.0.0-1011.11~24.04.1
|
| 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 |
< 7.0.0-31.31.1~24.04.1 Fix: upgrade to 7.0.0-31.31.1~24.04.1
|
| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield | 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 |
< 7.0.0-31.31 Fix: upgrade to 7.0.0-31.31
|
| Ubuntu:26.04:LTS | canonical | linux-aws |
< 7.0.0-1012.12 Fix: upgrade to 7.0.0-1012.12
|
| Ubuntu:26.04:LTS | canonical | linux-ibm |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-nvidia |
< 7.0.0-1018.18 Fix: upgrade to 7.0.0-1018.18
|
| Ubuntu:26.04:LTS | canonical | linux-nvidia-bos |
< 7.0.0-2018.18 Fix: upgrade to 7.0.0-2018.18
|
| Ubuntu:26.04:LTS | canonical | linux-oem-7.0 |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-oracle |
< 7.0.0-1011.11 Fix: upgrade to 7.0.0-1011.11
|
| Ubuntu:26.04:LTS | canonical | linux-raspi |
< 7.0.0-1019.19 Fix: upgrade to 7.0.0-1019.19
|
| Debian:13 | debian | linux |
< 6.12.96-1 Fix: upgrade to 6.12.96-1
|
| Debian:14 | debian | linux |
< 7.1.4-1 Fix: upgrade to 7.1.4-1
|
| – | linux | linux_kernel |
>= 6.12.75, < 6.12.96 >= 6.16, < 6.18.39 >= 6.19, < 7.1.4 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Alpaquita:25 | bellsoft | linux-lts |
>= 6.12.95-r0, < 6.12.103-r0 Fix: upgrade to 6.12.103-r0
|
| Alpaquita:stream | bellsoft | linux-lts |
>= 6.18.38-r0, < 6.18.43-r0 Fix: upgrade to 6.18.43-r0
|
| Ubuntu:26.04:LTS | canonical | linux-gcp |
< 7.0.0-1011.11 Fix: upgrade to 7.0.0-1011.11
|
| Ubuntu:26.04:LTS | canonical | linux-gke |
< 7.0.0-1006.7 Fix: upgrade to 7.0.0-1006.7
|
| Ubuntu:26.04:LTS | canonical | linux-realtime |
< 7.0.0-31.31.1 Fix: upgrade to 7.0.0-31.31.1
|
| Ubuntu:26.04:LTS | canonical | linux-riscv |
< 7.0.0-31.31.1 Fix: upgrade to 7.0.0-31.31.1
|
| Ubuntu:26.04:LTS | canonical | linux-azure |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Linux | linux | kernel |
>= 6.16.0, < 7.1.4 Fix: upgrade to 7.1.4
|
| Debian:12 | debian | linux-6.12 |
< 6.12.100-1~deb12u1 Fix: upgrade to 6.12.100-1~deb12u1
|
| Root:Ubuntu:22.04 | – | linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Root:Ubuntu:22.04 | – | rootio-linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Ubuntu:26.04:LTS | canonical | linux-azure-fde |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
Original advisory text
CVE-2026-64309 in linux - Patched by Root
Root has patched CVE-2026-64309 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.
References
- https://security-tracker.debian.org/tracker/CVE-2026-64309 Vendor Advisory
- https://docs.bell-sw.com/security/cves/CVE-2026-64309 Vendor Advisory
- https://git.kernel.org/stable/c/5a1364da2f04217a36e2fdfa2db4ee025b383a20 Patch
- https://git.kernel.org/stable/c/67ed191b4c8bdf432a3f32d1eb302880b4795cd1 Patch
- https://git.kernel.org/stable/c/74768f73854d647a6462f252dc8782ab8a835211 Patch
- https://git.kernel.org/stable/c/7a361c74bb12f3398c388905f1d325be642cd36e Patch
- https://ubuntu.com/security/notices/USN-8727-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-1 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-64309 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-64309 Third Party Advisory
- https://git.kernel.org/linus/5a1364da2f04217a36e2fdfa2db4ee025b383a20 Third Party Advisory
- https://ubuntu.com/security/notices/USN-8760-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8800-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8760-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-3 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64309... Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-4 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-64309 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
Severity
5.5
Medium
Type
CWE-908Use of Uninitialized Resource
Timeline
Published30 Oct 2026
Updated30 Oct 2026
First seen25 Jul 2026
Sources
CVE-2026-64309 · NVD
CVE-2026-64309 · MITRE
DEBIAN-CVE-2026-64309 · OSV
UBUNTU-CVE-2026-64309 · OSV
BELL-CVE-2026-64309 · OSV
CVE-2026-64309 · OSV
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