ROS-20261008-73-0118

The vulnerability of the vcswrite function in the drivers/tty/vt/vc-screen.c file of the Linux kernel virtual terminal driver module is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the vcs_write() function in the drivers/tty/vt/vc-screen.c file of the virtual terminal driver for the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the vcswrite function in the drivers/tty/vt/vc-screen.c file of the Linux kernel virtual terminal driver module is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-74635: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

CVE-2026-74635: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

The vulnerability of the vcs_write() function in the drivers/tty/vt/vc-screen.c file of the Linux kernel-based virtual terminal driver allows a hacker to cause a service failure.

The vulnerability of the vcswrite function in the drivers/tty/vt/vc-screen.c file of the Linux kernel virtual terminal driver module is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-53385

A flaw was found in the Linux kernel's vcscreen module. A race condition in the vcswrite function can lead to a null pointer dereference. This occurs when the vcdata pointer becomes stale during concurrent write operations, and a subsequent call attempts to use the now-invalid pointer. A local...

vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write

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CVE-2026-53385 vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write

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,...

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,...

CVE-2026-53385: NULL Pointer Dereference

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 20.1070a Security Update: kernel (UTSA-2026-013107)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013107 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...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004402)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004402 advisory. vcswrite in drivers/tty/vt/vcscreen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a. Tenable has extracted t...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004292)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004292 advisory. vcswrite in drivers/tty/vt/vcscreen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a. Tenable has extracted t...

SUSE 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...

EUVD-2023-60081

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...

DEBIAN-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

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...

UBUNTU-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 vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF

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 vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF

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...