CVE-2026-72064: Linux kernel · net: mana: Sync page pool RX frags for CPU
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.8 Critical · fixed in 6.8.0-1070.78~22.04.1 : patch Linux kernel as a priority.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1070.78~22.04.1, 6.8.0-1068.75~22.04.1, 7.0.0-1013.13~24.04.1 +17
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available and included in updated Linux kernel packages. Users should apply the official kernel updates provided by their distribution and reboot systems to activate the patches. For Ubuntu, refer to security notice USN-8816-1 for updated kernel package versions. Recompilation and reinstallation of third-party kernel modules may be required due to ABI changes.
Description
A critical vulnerability in the Linux kernel's Microsoft Azure Network Adapter (MANA) driver was resolved. The issue involved improper synchronization of DMA buffers for received packets, causing missing CPU synchronization before packet data was passed to the networking stack. This could break network receive functionality on configurations requiring explicit DMA syncing. The vulnerability is fixed by ensuring proper DMA sync before handing buffers to the network stack.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72064 (opens in a new tab)
- git.kernel.org/stable/c/bc650dd5ce6434286b96e2b26a41af81f679cc7c (opens in a new tab)
- git.kernel.org/stable/c/c72a0f09c57f92113df69f9b902d11c9e4b132f5 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72064 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72064 (opens in a new tab)
- git.kernel.org/linus/c72a0f09c57f92113df69f9b902d11c9e4b132f5 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8904-1 (opens in a new tab)
- git.kernel.org/stable/c/845c959178ccab020b67bed7f4eae3058135ec80 (opens in a new tab)