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QSN-8656-1: Linux kernel (HWE) vulnerabilities
August 20, 2026
Summary
Several security issues were fixed in the Linux kernel.
Details
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network drivers; - File systems infrastructure; - IPv4 networking; - Network traffic control; - TCP network protocol; - B.A.T.M.A.N. meshing protocol; - IPv6 networking; - Multipath TCP; - Netfilter; - Open vSwitch; - RxRPC session sockets; - SCTP protocol; - SMC sockets; (CVE-2026-43083, CVE-2026-43197, CVE-2026-43198, CVE-2026-43465, CVE-2026-46242, CVE-2026-46325, CVE-2026-46331, CVE-2026-52914, CVE-2026-52924, CVE-2026-52931, CVE-2026-53151, CVE-2026-53176, CVE-2026-53212, CVE-2026-53215, CVE-2026-53224, CVE-2026-53225, CVE-2026-53228, CVE-2026-53246, CVE-2026-53247, CVE-2026-53359, CVE-2026-64531)
Affected QuantaStor releases
| Release | Platform | Package | Exposure | Shipped version | Fixed version | Status |
|---|---|---|---|---|---|---|
| 6.9.1.001 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.9.1.001 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.9.0.464 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.9.0.464 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.6.015 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.6.015 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.5.018 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.5.018 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.4.038 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.4.038 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.3.018 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.3.018 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.2.002 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.2.002 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.1.007 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.1.007 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.0.205 | Ubuntu 22.04 LTS | linux-modules-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
| 6.8.0.205 | Ubuntu 22.04 LTS | linux-modules-extra-6.8.0-90-generic | Externally-facing | 6.8.0-90.91~22.04.1 | 6.8.0-138.138~22.04.1 | Fix pending (kernel update) |
Internally-facing: only accessible when logged into the QuantaStor console/ssh as the qadmin administrative sudo user; generally lower priority. Externally-facing: part of a service the storage platform presents on the network (or the kernel), so potentially reachable over the network.
CVEs
CVE-2026-64531, CVE-2026-53151, CVE-2026-53246, CVE-2026-53176, CVE-2026-52914, CVE-2026-52924, CVE-2026-43465, CVE-2026-46331, CVE-2026-52931, CVE-2026-43198, CVE-2026-43197, CVE-2026-53247, CVE-2026-53215, CVE-2026-53359, CVE-2026-46325, CVE-2026-46242, CVE-2026-53212, CVE-2026-53224, CVE-2026-53228, CVE-2026-53225, CVE-2026-43083
References
https://ubuntu.com/security/notices/USN-8656-1
https://nvd.nist.gov/vuln/detail/CVE-2026-64531
https://nvd.nist.gov/vuln/detail/CVE-2026-53151
https://nvd.nist.gov/vuln/detail/CVE-2026-53246
https://nvd.nist.gov/vuln/detail/CVE-2026-53176
https://nvd.nist.gov/vuln/detail/CVE-2026-52914
https://nvd.nist.gov/vuln/detail/CVE-2026-52924
https://nvd.nist.gov/vuln/detail/CVE-2026-43465
https://nvd.nist.gov/vuln/detail/CVE-2026-46331
https://nvd.nist.gov/vuln/detail/CVE-2026-52931
https://nvd.nist.gov/vuln/detail/CVE-2026-43198
https://nvd.nist.gov/vuln/detail/CVE-2026-43197
https://nvd.nist.gov/vuln/detail/CVE-2026-53247
https://nvd.nist.gov/vuln/detail/CVE-2026-53215
https://nvd.nist.gov/vuln/detail/CVE-2026-53359
https://nvd.nist.gov/vuln/detail/CVE-2026-46325
https://nvd.nist.gov/vuln/detail/CVE-2026-46242
https://nvd.nist.gov/vuln/detail/CVE-2026-53212
https://nvd.nist.gov/vuln/detail/CVE-2026-53224
https://nvd.nist.gov/vuln/detail/CVE-2026-53228
https://nvd.nist.gov/vuln/detail/CVE-2026-53225
https://nvd.nist.gov/vuln/detail/CVE-2026-43083
Update
Fixes marked Fixed by QuantaStor security update are applied by upgrading QuantaStor with security patches included (Upgrade Manager). Fixed package versions:
| Platform | Package | Version |
|---|---|---|
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-138.138~22.04.1 |