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NVD / CVE Program· CNA Linux

CVE-2023-53596: drivers: base: Free devm resources when unregistering a device

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 297992e5c63528e603666e36081836204fc36ec9, 3bcc4c2a096e8342c8c719e595ce15de212694dd, 699fb50d99039a50e7494de644f96c889279aca3.

Low priority for now. Upgrade to Linux Linux 297992e5c63528e603666e36081836204fc36ec9, 3bcc4c2a096e8342c8c719e595ce15de212694dd, 699fb50d99039a50e7494de644f96c889279aca3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: drivers: base: Free devm resources when unregistering a device In the current code, devres_release_all() only gets called if the device has a bus and has been probed. This leads to issues when using bus-less or driver-less devices where the device might never get freed if a managed resource holds a reference to the device. This is happening in the DRM framework for example. We should thus call devres_release_all() in the device_del() function to make sure that the device-managed actions are properly executed when the device is unregistered, even if it has neither a bus nor a driver. This is effectively the same change than commit 2f8d16a996da ("devres: release resources on device_del()") that got reverted by commit a525a3ddeaca ("driver core: free devres in device_release") over memory leaks concerns. This patch effectively combines the two commits mentioned above to release the resources both on device_del() and device_release() and get the best of both worlds.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Oct 4, 2025
Updated
Jun 18, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.7 and later · before 5.10.258
  • linux linux kernel5.11 and later · before 5.15.209
  • linux linux kernel5.16 and later · before 6.1.53
  • linux linux kernel6.2 and later · before 6.4.16
  • linux linux kernel6.5 and later · before 6.5.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.7affected
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before 83e2ec36a92432e9445e853c12becbbae353b511affected · git
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before b9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3affected · git
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before 297992e5c63528e603666e36081836204fc36ec9affected · git
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before 3bcc4c2a096e8342c8c719e595ce15de212694ddaffected · git
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before c8c426fae26086a0ca8ab6cc6da2de79810ec038affected · git
    • a525a3ddeaca69f405d98442ab3c0746e53168dc and later · before 699fb50d99039a50e7494de644f96c889279aca3affected · git
    • before 3.7not affected · semver
    • 5.10.258 and later · up to and including 5.10.*not affected · semver
    • 5.15.209 and later · up to and including 5.15.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.55-16.1.55-1
Debian:13linuxbefore 6.5.3-16.5.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-53594Oct 4, 2025 · driver core: fix resource leak in device_add()
    22Monitor
  • ← EarlierCVE-2023-53595Oct 4, 2025 · octeontx2-pf: mcs: Fix NULL pointer dereferences
    22Monitor
  • Later →CVE-2023-53597Oct 4, 2025 · cifs: fix mid leak during reconnection after timeout threshold
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux297992e5c63528e603666e36081836204fc36ec9Vendor (CNA)
Linux Linux3bcc4c2a096e8342c8c719e595ce15de212694ddVendor (CNA)
Linux Linux699fb50d99039a50e7494de644f96c889279aca3Vendor (CNA)
Linux Linux83e2ec36a92432e9445e853c12becbbae353b511Vendor (CNA)
Linux Linuxb9ef4b0aa91d2f9f5951faafdbbd47cf01799ec3Vendor (CNA)
Linux Linuxc8c426fae26086a0ca8ab6cc6da2de79810ec038Vendor (CNA)
debian:linux6.1.55-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-31608202 days apartsmb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()
    39Monitor
  • CVE-2026-31609202 days apartsmb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
    39Monitor
  • CVE-2026-43011209 days apartnet/x25: Fix potential double free of skb
    39Monitor
  • CVE-2026-43414216 days apartscsi: qla2xxx: Completely fix fcport double free
    39Monitor
  • CVE-2026-52993263 days aparttipc: fix double-free in tipc_buf_append()
    39Monitor
  • CVE-2026-63888288 days apartscsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()
    39Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-415 · Double Free

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records