NVD / CVE Program· CNA Linux

CVE-2025-68822: Input: alps - fix use-after-free bugs caused by dev3_register_work

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: 0.17% (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 55beb00222af2eee967322670a0c8f3c6426becb, a9c115e017b2c633d25bdfe6709dda6fc36f08c2, b9d8cfd6d77f5072a4df10646810d128220457fb; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 55beb00222af2eee967322670a0c8f3c6426becb, a9c115e017b2c633d25bdfe6709dda6fc36f08c2, b9d8cfd6d77f5072a4df10646810d128220457fb; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes 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: Input: alps - fix use-after-free bugs caused by dev3_register_work The dev3_register_work delayed work item is initialized within alps_reconnect() and scheduled upon receipt of the first bare PS/2 packet from an external PS/2 device connected to the ALPS touchpad. During device detachment, the original implementation calls flush_workqueue() in psmouse_disconnect() to ensure completion of dev3_register_work. However, the flush_workqueue() in psmouse_disconnect() only blocks and waits for work items that were already queued to the workqueue prior to its invocation. Any work items submitted after flush_workqueue() is called are not included in the set of tasks that the flush operation awaits. This means that after flush_workqueue() has finished executing, the dev3_register_work could still be scheduled. Although the psmouse state is set to PSMOUSE_CMD_MODE in psmouse_disconnect(), the scheduling of dev3_register_work remains unaffected. The race condition can occur as follows: CPU 0 (cleanup path) | CPU 1 (delayed work) psmouse_disconnect() | psmouse_set_state() | flush_workqueue() | alps_report_bare_ps2_packet() alps_disconnect() | psmouse_queue_work() kfree(priv); // FREE | alps_register_bare_ps2_mouse() | priv = container_of(work...); // USE | priv->dev3 // USE Add disable_delayed_work_sync() in alps_disconnect() to ensure that dev3_register_work is properly canceled and prevented from executing after the alps_data structure has been deallocated. This bug is identified by static analysis.

HighCVSS 7.8 · v3.1—No exploit Fix available

Memory safety

Published: Jan 13, 2026
Updated: Oct 30, 2026
EPSS: 0.1% · 7th percentile
CWE: CWE-416

Report tools

JSON

Action score

Monitor

Low priority for now.

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

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Linux: 7.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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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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.

ProductVersion

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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
- 4.0affected
- 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 and later · before 55beb00222af2eee967322670a0c8f3c6426becbaffected · git
- 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 and later · before b9d8cfd6d77f5072a4df10646810d128220457fbaffected · git
- 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 and later · before ed8c61b89be0c45f029228b2913d5cf7b5cda1a7affected · git
- 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 and later · before a9c115e017b2c633d25bdfe6709dda6fc36f08c2affected · git
- 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 and later · before bf40644ef8c8a288742fa45580897ed0e0289474affected · git
- before 4.0not affected · semver
- 6.1.191 and later · up to and including 6.1.*not affected · semver
- 6.6.160 and later · up to and including 6.6.*not affected · semver
- 6.12.64 and later · up to and including 6.12.*not affected · semver

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	from 0	—
Debian:13	linux	before 6.12.69-1	6.12.69-1
Debian:14	linux	before 6.18.3-1	6.18.3-1
SUSE:Linux Enterprise Live Patching 12 SP5	kernel-default	before 4.12.14-122.317.1	4.12.14-122.317.1
SUSE:Linux Enterprise Live Patching 12 SP5	kgraft-patch-SLE12-SP5_Update_84	before 1-8.7.1	1-8.7.1
SUSE:Linux Enterprise Live Patching 15 SP7	kernel-livepatch-SLE15-SP7_Update_17	before 1-150700.15.3.1	1-150700.15.3.1
SUSE:Linux Enterprise Live Patching 15 SP7	kernel-livepatch-SLE15-SP7-RT_Update_17	before 1-150700.1.3.1	1-150700.1.3.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7	kernel-64kb	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7	kernel-default	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7	kernel-default-base	before 6.4.0-150700.53.63.1.150700.17.37.1	6.4.0-150700.53.63.1.150700.17.37.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7	kernel-source	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7	kernel-zfcpdump	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7	kernel-docs	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7	kernel-obs-build	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7	kernel-syms	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Module for Public Cloud 15 SP7	kernel-azure	before 6.4.0-150700.53.63.1	6.4.0-150700.53.63.1
SUSE:Linux Enterprise Server 12 SP5-LTSS	kernel-source	before 4.12.14-122.317.1	4.12.14-122.317.1
SUSE:Linux Enterprise Server 12 SP5-LTSS	kernel-syms	before 4.12.14-122.317.1	4.12.14-122.317.1
SUSE:Linux Micro 6.0	kernel-default	before 6.4.0-48.1	6.4.0-48.1
SUSE:Linux Micro 6.0	kernel-default-base	before 6.4.0-48.1.21.25	6.4.0-48.1.21.25
SUSE:Linux Micro 6.0	kernel-kvmsmall	before 6.4.0-48.1	6.4.0-48.1
SUSE:Linux Micro 6.0	kernel-rt	before 6.4.0-48.1	6.4.0-48.1
SUSE:Linux Micro 6.0	kernel-source	before 6.4.0-48.1	6.4.0-48.1
SUSE:Linux Micro 6.0	kernel-source-rt	before 6.4.0-48.1	6.4.0-48.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
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Published before and after this one in the same product

← EarlierCVE-2025-68819Jan 13, 2026 · media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()
31Monitor
← EarlierCVE-2025-68820Jan 13, 2026 · ext4: xattr: fix null pointer deref in ext4_raw_inode()
0Monitor
Later →CVE-2025-71064Jan 13, 2026 · net: hns3: using the num_tqps in the vf driver to apply for resources
0Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
Linux Linux	55beb00222af2eee967322670a0c8f3c6426becb	Vendor (CNA)
Linux Linux	a9c115e017b2c633d25bdfe6709dda6fc36f08c2	Vendor (CNA)
Linux Linux	b9d8cfd6d77f5072a4df10646810d128220457fb	Vendor (CNA)
Linux Linux	bf40644ef8c8a288742fa45580897ed0e0289474	Vendor (CNA)
Linux Linux	ed8c61b89be0c45f029228b2913d5cf7b5cda1a7	Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0	—	Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.0	Release Notes	Microsoft (MSRC)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0	Release Notes	Microsoft (MSRC)
debian:linux	6.12.69-1 · Debian:13	Package registry (OSV)
suse:kernel-64kb	6.4.0-150700.53.63.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7	Package registry (OSV)
suse:kernel-default	6.4.0-48.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-default-base	6.4.0-48.1.21.25 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-docs	6.4.0-150700.53.63.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7	Package registry (OSV)
suse:kernel-kvmsmall	6.4.0-48.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-obs-build	6.4.0-150700.53.63.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP7	Package registry (OSV)
suse:kernel-rt	6.4.0-48.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-source	6.4.0-48.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-source-rt	6.4.0-48.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:kernel-syms	4.12.14-122.317.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS	Package registry (OSV)
suse:kernel-zfcpdump	6.4.0-150700.53.63.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7	Package registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_84	1-8.7.1 · SUSE:Linux Enterprise Live Patching 12 SP5	Package 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-2026-63979187 days apartnet/handshake: hand off the pinned file reference to accept_doit
39Monitor
CVE-2026-64523193 days apartnet/handshake: Take a long-lived file reference at submit
39Monitor
CVE-2026-64530194 days apartnet/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle
39Monitor
CVE-2026-64541195 days apartnet/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket
39Monitor
CVE-2026-64564203 days apartsctp: don't free the ASCONF's own transport in DEL-IP processing
39Monitor
CVE-2026-68426209 days apartxfrm: fix stale skb->prev after async crypto steals a GSO segment
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-416 · Use After Free

CVSS vector

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

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

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

SSVC exploitation— → noneOct 16, 2026, 5:07 PM UTC
Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

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

References

git.kernel.org/stable/c/55beb00222af2eee967322670a0c8f3c6426becb

Show all references (4 more)

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

All records