VulnerabilityModified
CVE-2025-21761
In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU.
HIGH 7.8EPSS 0.24%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0Patch
- https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2daPatch
- https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074Patch
- https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76dPatch
- https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617aPatch
- https://git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11Patch
- https://git.kernel.org/stable/c/a884f57600e463f69d7b279c4598b865260b62a1Patch
- https://git.kernel.org/stable/c/e85a25d1a9985645e796039e843d1de581d2de1ePatch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.