CVE-2023-53356

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_suspend Consider a case where gserial_disconnect has already cleared gser->ioport. And if gserial_suspend 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.

The following products are affected by CVE-2023-53356 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-53356.

URL	Resource
https://git.kernel.org/stable/c/2788a3553f7497075653210b42e2aeb6ba95e28e
https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909a
https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962
https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8f
https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04
https://lore.kernel.org/linux-cve-announce/2025091721-CVE-2023-53356-5383@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-53356
https://www.cve.org/CVERecord?id=CVE-2023-53356