CVE-2023-53551

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Source
https://cve.org/CVERecord?id=CVE-2023-53551
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53551.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53551
Downstream
Related
Published
2025-10-04T15:16:57.736Z
Modified
2026-04-02T09:44:26.801361Z
Summary
usb: gadget: u_serial: Add null pointer check in gserial_resume
Details

In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: userial: Add null pointer check in gserialresume

Consider a case where gserialdisconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserialresume 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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53551.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
aba3a8d01d623a5efef48ab8e78752d58d4c90c3
Fixed
c5360eec648bd506afa304ae4a71f82e13d41897
Fixed
3b24c980dc07be4550a9d1450ed7057f882530e5
Fixed
ec357cd3e8af614855d286dd378725cdc7264df6
Fixed
44e004f757a7ae13dfebaadbcfdb1a6f98c10377
Fixed
5ec63fdbca604568890c577753c6f66c5b3ef0b5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53551.json"