CVE-2025-38735gve: prevent ethtool ops after shutdown
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: gve: prevent ethtool ops after shutdown A crash can occur if an ethtool operation is invoked after shutdown() is called. shutdown() is invoked during system shutdown to stop DMA operations without performing expensive deallocations. It is discouraged to unregister the netdev in this path, so the device may still be visible to userspace and kernel helpers. In gve, shutdown() tears down most internal data structures. If an ethtool operation is dispatched after shutdown(), it will dereference freed or NULL pointers, leading to a kernel panic. While graceful shutdown normally quiesces userspace before invoking the reboot syscall, forced shutdowns (as observed on GCP VMs) can still trigger this path. Fix by calling netif_device_detach() in shutdown(). This marks the device as detached so the ethtool ioctl handler will skip dispatching operations to the driver.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | 974365e518617c9ce917f61aacbba07e4bedcca0 builds before 48a4e89d50e8ea52e800bc7865970b92fcf4647c; from 974365e518617c9ce917f61aacbba07e4bedcca0 before ba51d73408edf815cbaeab148625576c2dd90192; from 974365e518617c9ce917f61aacbba07e4bedcca0 before a7efffeecb881b4649fdc30de020ef910f35d646; 974365e518617c9ce917f61aacbba07e4bedcca0 builds before 9d8a41e9a4ff83ff666de811e7f012167cdc00e9; 974365e518617c9ce917f61aacbba07e4bedcca0 builds before 75a9a46d67f46d608205888f9b34e315c1786345 | CNA record |
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name) | before V5.0 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.17 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4; 6.17; 6.17 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/48a4e89d50e8ea52e800bc7865970b92fcf4647cpatch
- https://git.kernel.org/stable/c/ba51d73408edf815cbaeab148625576c2dd90192patch
- https://git.kernel.org/stable/c/a7efffeecb881b4649fdc30de020ef910f35d646patch
- https://git.kernel.org/stable/c/9d8a41e9a4ff83ff666de811e7f012167cdc00e9patch
- https://git.kernel.org/stable/c/75a9a46d67f46d608205888f9b34e315c1786345patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.