CVE-2026-53385

In the Linux kernel, the following vulnerability has been resolved: vcscreen: fix null-ptr-deref in vcsnotifier during concurrent vcswrite A KASAN null-ptr-deref was observed in vcsnotifier: BUG: KASAN: null-ptr-deref in vcsnotifier+0x98/0x130 Read of size 2 at addr qmpcmdname: qmpcapabilities,...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007456)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007456 advisory. In the Linux kernel, the following vulnerability has been resolved: vcscreen: reload load of struct vcdata pointer in vcswrite to avoid UAF After a call to...

CVE-2023-53747

In the Linux kernel, the following vulnerability has been resolved: vcscreen: reload load of struct vcdata pointer in vcswrite to avoid UAF After a call to consoleunlock in vcswrite the vcdata struct can be freed by vcportdestruct. Because of that, the struct vcdata pointer must be reloaded in th...

CVE-2023-53747

CVE-2023-53747 affects the Linux kernel’s virtual terminal driver (vc_screen). The issue arises in vcs_write() where, after console_unlock(), the vc_data object may be freed by vc_port_destruct(), causing a Use-After-Free when vcs_size() is later invoked. The fix reloads the pointer to the vc_dat...

Linux Distros Unpatched Vulnerability : CVE-2023-53747

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vcscreen: reload load of struct vcdata pointer in vcswrite to avoid UAF After a call to consoleunlock in vcswrite the vcdata struct can be freed by...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990071)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990071 advisory. In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to consoleunloc...

Linux Distros Unpatched Vulnerability : CVE-2023-52973

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to...

CVE-2023-52973

The CVE-2023-52973 issue affects the Linux kernel’s vc_screen path (vt/vc_screen.c). Root cause: a use-after-free of vc_data after console_unlock() in vcs_read(), where the vc_data pointer was loaded inside the loop, allowing a UAF in vcs_size(). The bug was fixed by moving the vc_data load to th...

kernel: vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF

In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to consoleunlock in vcsread the vcdata struct can be freed by vcdeallocate. Because of that, the struct vcdata pointer load must be done at the top...

PT-2025-13319

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc5 Description A use-after-free issue was identified in the Linux kernel, specifically in the vcs read function. This occurs because the vc data struct can be freed by vc deallocate after a call to console...