CVE-2023-53356

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Source
https://cve.org/CVERecord?id=CVE-2023-53356
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53356.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53356
Downstream
Related
Published
2025-09-17T14:56:46.113Z
Modified
2026-03-20T12:33:06.373768Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
usb: gadget: u_serial: Add null pointer check in gserial_suspend
Details

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

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

Consider a case where gserialdisconnect has already cleared gser->ioport. And if gserialsuspend gets called afterwards, it will lead to accessing of gser->ioport and thus causing null pointer dereference.

Avoid this by adding a null pointer check. Added a static spinlock to prevent gser->ioport from becoming null after the newly added null pointer check.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53356.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
2788a3553f7497075653210b42e2aeb6ba95e28e
Fixed
a8ea7ed644cbf6314b5b0136b5398754b549fb8f
Fixed
e60a827ac074ce6bd58305fe5a86afab5fce6a04
Fixed
374447e3367767156405bedd230c5d391f4b7962
Fixed
2f6ecb89fe8feb2b60a53325b0eeb9866d88909a

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53356.json"