CVE-2026-46144: Linux kernel · RDMA/mana: Fix error unwind in mana_ib_create_qp_rss()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · patch available : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 May 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux@7.0.0-28.28?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws@7.0.0-1008.8?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure@7.0.0-1009.9?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde@7.0.0-1008.8?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp@7.0.0-1008.8?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke@7.0.0-1003.4?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 patch is available and should be applied by upgrading to fixed Linux kernel versions. The vendor advisory confirms that this vulnerability has been resolved in updated kernel releases. No additional mitigation steps are required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's RDMA MANA driver related to error handling in mana_ib_create_qp_rss() has been fixed. The issue involved a resource leak in mana_ib_cfg_vport_steering() due to improper error unwind paths. This flaw could lead to denial of service by causing instability in the kernel. The vulnerability affects multiple specific Linux kernel versions and has been assigned CVE-2026-46144. A patch is available to address this issue.
References
- ubuntu.com/security/CVE-2026-46144 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-46144 (opens in a new tab)
- git.kernel.org/linus/6aaa978c6b6218cfac15fe1dab17c76fe229ce3f (opens in a new tab)
- git.kernel.org/stable/c/190e570cc0fc7f57eacf80d2b854ba54b4dfad6b (opens in a new tab)
- git.kernel.org/stable/c/30e8a2f33815d8f51b8f8b829c07af16c671cc27 (opens in a new tab)
- git.kernel.org/stable/c/6aaa978c6b6218cfac15fe1dab17c76fe229ce3f (opens in a new tab)
- git.kernel.org/stable/c/726af85ea4af750b2f75095e24e3cd99797344cb (opens in a new tab)
- git.kernel.org/stable/c/ab64c63b460bbd0521480bf90d5695783f5e66bc (opens in a new tab)
- ubuntu.com/security/notices/USN-8566-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8568-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8569-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8567-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8574-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8593-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8574-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8595-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8596-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8603-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8595-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8606-1 (opens in a new tab)