CVE-2026-53308

Source
https://cve.org/CVERecord?id=CVE-2026-53308
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53308.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53308
Downstream
Published
2026-06-26T19:41:02.696Z
Modified
2026-07-08T08:07:25.063356643Z
Summary
power: supply: max77705: Free allocated workqueue and fix removal order
Details

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 (__WQLEGACY | WQMEMRECLAIM). The workqueue is used to update power supply (powersupplychanged()) status, thus there is no point to run it for memory reclaim. Note that devname() is not directly used in second argument to prevent possible unlikely parsing any "%" character in device name as format.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53308.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
a6a494c8e3ce1fe84aac538b087a4cab868ed83f
Fixed
b98e4e57e34d099a8f846fa54749654082975ea0
Fixed
1e668baadefb16e81269dbfebf3ffc2672e3a3bb

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53308.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.15.0
Fixed
7.0.10

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53308.json"