Dashboard / CVE-2026-53278

CVE-2026-53278

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-06-26 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: arm_mpam: Check whether the config array is allocated before destroying it __destroy_component_cfg() is called to free the configuration array. It uses the embedded 'garbage' structure, which means the array has to be allocated. If __destroy_component_cfg() is called from mpam_disable() before the configuration was ever allocated, then a NULL pointer is dereferenced. Check for this case and return early if the configuration is not allocated. __destroy_component_cfg() also frees the mbwu_state as this is allocated by __allocate_component_cfg(). As the mbwu_state is allocated after comp->cfg is set, and is also under mpam_list_lock, only the first pointer needs checking.

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
Linux Linux 3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524 < 8eb6dc76eeae5302c0d885906a0e469ef9630a59
Linux Linux 3bd04fe7d807bbdcfe75b29ca82fae4e2d7dc524 < 6ccbb613b42a1f1ba7bfd547a148f644a902a25c
Linux Linux 6.19
linux linux_kernel 6.19 – 7.0.10
linux linux_kernel 7.1
linux linux_kernel 7.1
linux linux_kernel 7.1

References & Advisories (2)

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.14%
Raw Score 0.001430
Percentile 3.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00143
2026-11-12
0.00143
2026-11-10
0.00143
2026-11-09
0.00143
2026-11-08
0.00143
2026-11-07
0.00143
2026-11-06
0.00143

Intelligence Sources

mitre ref →
nvd ref →

External Links