CVE-2026-31678
- Source
- https://cve.org/CVERecord?id=CVE-2026-31678
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31678.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-31678
- Downstream
- Published
- 2026-04-25T08:46:54.476Z
- Modified
- 2026-04-26T04:22:21.355721Z
- Summary
- openvswitch: defer tunnel netdev_put to RCU release
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: defer tunnel netdev_put to RCU release
ovsnetdevtunneldestroy() may run after NETDEVUNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev.
Do not release vport->dev in ovsnetdevtunneldestroy(). Instead, let vportnetdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31678.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/42f0d3d81209654c08ffdde5a34b9b92d2645896
- https://git.kernel.org/stable/c/6931d21f87bc6d657f145798fad0bf077b82486c
- https://git.kernel.org/stable/c/98b726ab5e2a4811e27c28e4d041f75bba147eab
- https://git.kernel.org/stable/c/9d56aced21fb9c104e8a3f3be9b21fbafe448ffc
- https://git.kernel.org/stable/c/b8c56a3fc5d879c0928f207a756b0f067f06c6a8
- https://git.kernel.org/stable/c/bbe7bd722bfaea36aab3da6cc60fb4a05c644643
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31678.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31678
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda9020fde67a6eb77f8130feff633189f99264db1Fixed9d56aced21fb9c104e8a3f3be9b21fbafe448ffcFixed42f0d3d81209654c08ffdde5a34b9b92d2645896Fixedbbe7bd722bfaea36aab3da6cc60fb4a05c644643Fixed98b726ab5e2a4811e27c28e4d041f75bba147eabFixedb8c56a3fc5d879c0928f207a756b0f067f06c6a8Fixed6931d21f87bc6d657f145798fad0bf077b82486c