CVE-2026-64230: Linux kernel · regulator: tps65219: fix irq_data.rdev not being assigned
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 7.0.0-28.28~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-28.28~24.04.1, 7.0.0-28.28, 7.0.0-1009.9 +5
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 27 Jul 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.
Patches and advisories
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 patch is available and should be applied to affected Linux kernel versions. The fix restructures the probe function to properly assign irq_data.rdev and adds NULL checks in the IRQ handler to prevent crashes. Users should update to a fixed kernel version as provided by their distribution vendor.
Description
A vulnerability in the Linux kernel's regulator subsystem (tps65219 driver) was fixed by properly assigning irq_data.rdev to avoid undefined behavior during IRQ handling. The issue was caused by removal of a helper function that left irq_data.rdev uninitialized, potentially causing kernel crashes (Oops) when regulator_notifier_call_chain() is invoked. The fix restructures the probe function to assign rdev correctly during regulator and IRQ registration, adding NULL checks for non-regulator IRQs to prevent crashes.
References
- ubuntu.com/security/CVE-2026-64230 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-64230 (opens in a new tab)
- git.kernel.org/linus/f9b2d3b703d13df50c630997dfdc25648e96db0d (opens in a new tab)
- git.kernel.org/stable/c/6827647fd2dcf4e7f355478a42e82f51e0b5344c (opens in a new tab)
- git.kernel.org/stable/c/b986f88b22a5374191c195c073350bbeb1bb6518 (opens in a new tab)
- git.kernel.org/stable/c/f9b2d3b703d13df50c630997dfdc25648e96db0d (opens in a new tab)
- ubuntu.com/security/notices/USN-8618-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8663-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8664-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-1 (opens in a new tab)