CVE-2025-68822Input: alps - fix use-after-free bugs caused by dev3_register_work
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 20 days later
· 20 days later
Published
- 10 months later
· 10 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 – < 55beb00222af2eee967322670a0c8f3c6426becb
- affected 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 – < b9d8cfd6d77f5072a4df10646810d128220457fb
- affected 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 – < ed8c61b89be0c45f029228b2913d5cf7b5cda1a7
- affected 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 – < a9c115e017b2c633d25bdfe6709dda6fc36f08c2
- affected 04aae283ba6a8cd4851d937bf9c6d6ef0361d794 – < bf40644ef8c8a288742fa45580897ed0e0289474
- affected 4.0
- unaffected < 4.0
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.64 – ≤ 6.12.*
- unaffected 6.18.3 – ≤ 6.18.*
- unaffected 6.19 – ≤ *
References
References5
- https://git.kernel.org/stable/c/55beb00222af2eee967322670a0c8f3c6426becb (opens in a new tab)
- https://git.kernel.org/stable/c/b9d8cfd6d77f5072a4df10646810d128220457fb (opens in a new tab)
- https://git.kernel.org/stable/c/ed8c61b89be0c45f029228b2913d5cf7b5cda1a7 (opens in a new tab)
- https://git.kernel.org/stable/c/a9c115e017b2c633d25bdfe6709dda6fc36f08c2 (opens in a new tab)
- https://git.kernel.org/stable/c/bf40644ef8c8a288742fa45580897ed0e0289474 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-2280 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-68822)Record last updated .