CVE-2026-53308CWE-401

CVE-2026-53308

Medium · published June 27, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
4.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

power: supply: max77705: Free allocated workqueue and fix removal order

Use devm interface for allocating workqueue to fix two bugs at the same

time:

1. Driver leaks the memory on remove(), because the workqueue is not

destroyed.

2. Driver allocates workqueue and then registers interrupt handlers

with devm interface. This means that probe error paths will not use a

reversed order, but first destroy the workqueue and then, via devm

release handlers, free the interrupt.

The interrupt handler schedules work on this exact workqueue, thus if

interrupt is hit in this short time window - after destroying

workqueue, but before devm() frees the interrupt - the schedulled

work will lead to use of freed memory.

Change is not equivalent in the workqueue itself: use non-legacy API

which does not set (__WQ_LEGACY | WQ_MEM_RECLAIM). The workqueue is

used to update power supply (power_supply_changed()) status, thus there

is no point to run it for memory reclaim. Note that dev_name() is not

directly used in second argument to prevent possible unlikely parsing

any "%" character in device name as format.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00160 · 4.8th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-06-27T00:17Z
Affected products (1)
ProductVersionsFixed in
linux/linux_kernel≥ 6.15, < 7.0.107.0.10
References (3)
EPSS history
Timeline
  • 26 JUN 19:41Z
    power: supply: max77705: Free allocated workqueue and fix removal order
    cvelistv5