CVE-2026-46189

Published: May 28, 2026Modified: Jul 30, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

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.

Affected (9)

Products: Linux: Linux Kernel

1 product

Configuration A

9 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 4.10 to 5.10.258
Linux Linux Kernel	From 5.11 to 5.15.209
Linux Linux Kernel	From 5.16 to 6.1.175
Linux Linux Kernel	From 6.13 to 6.18.30
Linux Linux Kernel	From 6.19 to 7.0.7
Linux Linux Kernel	From 6.2 to 6.6.140
Linux Linux Kernel	From 6.7 to 6.12.88
Linux Linux Kernel	Version 7.1 rc1
Linux Linux Kernel	Version 7.1 rc2

Related CWEs

Multiple Releases of Same Resource or Handle

The product attempts to close or release a resource or handle more than once, without any successful open between the close operations.

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References (22)

https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/1df5711121cdc11e76b889408fdbe459feba1d39

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/269967d7693304e1f06ed2dff4ebbbeeb397cda4

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/3a231c34c5bc3d3cfc850b877758ec9fdaa8a483

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://access.redhat.com/errata/RHSA-2026:30848

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:33685

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:33743

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:35904

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:36049

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:36073

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:36767

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:38902

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:40068

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:40760

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/errata/RHSA-2026:47633

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://access.redhat.com/security/cve/CVE-2026-46189

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://bugzilla.redhat.com/show_bug.cgi?id=2482588

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46189.json

Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

No history available yet.