CVE-2026-46189: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

High severity · published May 28, 2026

CVE-2026-46189

RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

7.8

CVSS

0.1%

EPSS

On KEV

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

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)0.1% · higher than 4% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Kernel · Linux

4.10 before 5.10.258; 5.11 before 5.15.209; 5.16 before 6.1.175; 6.2 before 6.6.140; 6.7 before 6.12.88; 6.13 before 6.18.30; +3 more · source: NVD

Linux · Linux

29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 269967d7693304e1f06ed2dff4ebbbeeb397cda4; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 1df5711121cdc11e76b889408fdbe459feba1d39; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 3a231c34c5bc3d3cfc850b877758ec9fdaa8a483; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before ecc36a82ecfcfdf3c6606d209f22ec5543c410e0; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0; 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 before 0c63333ff97bd1275294fd12840a0efe9d7a4c59; +3 more · source: vendor

Red Hat Enterprise Linux 10 · Red Hat