CVE-2026-53294

HIGH

mailbox: mailbox-test: don't free the reused channel

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: don't free the reused channel The RX channel can be aliased to the TX channel if it has a different MMIO. This special case needs to be handled when freeing the channels otherwise a double-free occurs.

References (8)

Core 8

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 3.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-415
Status published
Products (27)
linux/Kernel 4.4.0 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.33linux
linux/Kernel 6.19.0 - 7.0.10linux
linux/Kernel 6.2.0 - 6.6.141linux
linux/Kernel 6.7.0 - 6.12.91linux
Linux/Linux < 4.4
Linux/Linux 4.4
Linux/Linux 5.10.258 - 5.10.*
... and 17 more
Published Jun 26, 2026
Tracked Since Jun 27, 2026