usb: gadget: u_serial: Add null pointer check in gserial_resume
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this. Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.8 and later | 5.10.171, 5.15.97, 6.1.15, 6.2.2, 6.3 | Patch available | CNA |
- Linux VendorLinux Affected 5.8 and later Fixed in 5.10.171, 5.15.97, 6.1.15, 6.2.2, 6.3 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.8 to before 5.10.171; 5.11 to before 5.15.97; 5.16 to before 6.1.15; 6.2 to before 6.2.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.8 to before 5.10.171; 5.11 to before 5.15.97; 5.16 to before 6.1.15; 6.2 to before 6.2.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.171, 5.15.97, 6.1.15, 6.2.2, 6.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53551
- 2026-10-03 Alias added: GHSA-x2mg-85cj-xc8q
References
Patch 5
- https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897
- https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5
- https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6
- https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377
- https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-53551 · CVE Program
- CVE-2023-53551 · NVD
- FIRST EPSS
- GHSA-x2mg-85cj-xc8q · GitHub Advisory Database · CC BY 4.0
- CVE-2023-53551 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences