linux: In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in...
CVE-2023-53551 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53551, released October 4, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.15-1 | DEBIAN-CVE-2023-53551 | Oct 4, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.15-1 | DEBIAN-CVE-2023-53551 | Oct 4, 2025 |
| linux · Debian 14 | 6.1.15-1 | DEBIAN-CVE-2023-53551 | Oct 4, 2025 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.