CVE-2026-80750: Linux kernel · pmdomain: mediatek: fix remaining %pOF after of_node_put()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.4 High.
Data as of 26 Oct 2026, 15:59 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 3 Sep 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?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 for this vulnerability has been implemented in the Linux kernel source. Users and administrators should apply the official kernel updates that include this patch to remediate the issue. Since this is a kernel-level vulnerability, upgrading to a patched kernel version is the recommended mitigation. Patch status is not explicitly stated here; check the official Linux kernel advisories or vendor distributions for the specific fixed versions.
Description
In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix remaining %pOF after of_node_put() scpsys_get_bus_protection_legacy() looks up several legacy bus protection regmaps from device-tree nodes. Two error paths put the device node before checking whether the regmap lookup failed, but still pass that node to dev_err_probe() with %pOF on failure. If of_node_put() drops the last reference, the later %pOF formatting can dereference a freed device node. Keep the node reference until after the error message has been emitted in the infracfg and SMI lookup paths. Also drop the SMI node before returning when the SMI phandle is missing.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80750 (opens in a new tab)
- git.kernel.org/stable/c/10bf2d7261d7f724ed43a09eea4c90c19c0230a0 (opens in a new tab)
- git.kernel.org/stable/c/3e013bc8b941bd52c8e3a99798d0ae8792cb71ca (opens in a new tab)
- git.kernel.org/stable/c/970b9c83a07c405fdd32bcce7cc4c9e670e58875 (opens in a new tab)
- ubuntu.com/security/CVE-2026-80750 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80750 (opens in a new tab)
- git.kernel.org/linus/3e013bc8b941bd52c8e3a99798d0ae8792cb71ca (opens in a new tab)