CVE-2026-99049: Linux kernel · gpio: xilinx: fix runtime PM leak on request error path
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:43 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 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 26.10linuxpkg:deb/ubuntu/linux?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=stonkingOther 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 that changes the code to use pm_runtime_resume_and_get(), which only increments the usage counter on success, preventing the leak. Users should update to patched kernel versions that include this fix.
Description
A vulnerability in the Linux kernel's Xilinx GPIO driver causes a runtime power management (PM) leak on the request error path. The function pm_runtime_get_sync() increments the usage counter even when it fails, and the error path does not properly decrement this counter, preventing the controller from runtime-suspending and leaving its clock enabled.
References
- ubuntu.com/security/CVE-2026-99049 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-99049 (opens in a new tab)
- git.kernel.org/stable/c/2fd6ecda5d1f47cffcfadddb35ee49402162c724 (opens in a new tab)
- git.kernel.org/stable/c/a027e0d7765d1531ee39e4dae81951b04f32ba7b (opens in a new tab)
- git.kernel.org/stable/c/b07b3925f676640103b3d74b93fc401b1c873d13 (opens in a new tab)
- git.kernel.org/stable/c/f73ee2bd2293f8cc340061c5229395ace71fc2eb (opens in a new tab)
- git.kernel.org/stable/c/ff82fc3a4a1d417dee1229681cc5285986edb1fa (opens in a new tab)