High severity · published Feb 27, 2025
CVE-2025-21761
openvswitch: use RCU protection in ovs_vport_cmd_fill_info()
7.8
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.15 before 5.4.291; 5.5 before 5.10.235; 5.11 before 5.15.179; 5.16 before 6.1.129; 6.2 before 6.6.79; 6.7 before 6.12.16; +3 more · source: NVD
LI
Linux · Linux
9354d452034273a50a4fd703bea31e5d6b1fc20b before e85a25d1a9985645e796039e843d1de581d2de1e; 9354d452034273a50a4fd703bea31e5d6b1fc20b before a8816b3f1f151373fd30f1996f00480126c8bb11; 9354d452034273a50a4fd703bea31e5d6b1fc20b before a884f57600e463f69d7b279c4598b865260b62a1; 9354d452034273a50a4fd703bea31e5d6b1fc20b before 7e01abc34e87abd091e619161a20f54ed4e3e2da; 9354d452034273a50a4fd703bea31e5d6b1fc20b before 8ec57509c36c8b9a23e50b7858dda0c520a2d074; 9354d452034273a50a4fd703bea31e5d6b1fc20b before a849a10de5e04d798f7f286a2f1ca174719a617a; +3 more · source: vendor
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
0; 0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21761
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-21761
Patch
https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0
Patch
https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da
Patch
https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074
Patch
https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d
Patch
https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a
Patch
https://git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11
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