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...

SUSE CVE-2026-74675

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74676

In the Linux kernel, the following vulnerability has been resolved: vt: add permission check for KDSKBMETA ioctl KDSKBMETA modifies keyboard meta mode but lacks the !perm check that all other keyboard setter ioctls in vtkioctl enforce, allowing a process to change meta mode on a non-controlling...

AZL-97235 CVE-2026-74675 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74675

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74676

In the Linux kernel, the following vulnerability has been resolved: vt: add permission check for KDSKBMETA ioctl KDSKBMETA modifies keyboard meta mode but lacks the !perm check that all other keyboard setter ioctls in vtkioctl enforce, allowing a process to change meta mode on a non-controlling...

UBUNTU-CVE-2026-74676

In the Linux kernel, the following vulnerability has been resolved: vt: add permission check for KDSKBMETA ioctl KDSKBMETA modifies keyboard meta mode but lacks the !perm check that all other keyboard setter ioctls in vtkioctl enforce, allowing a process to change meta mode on a non-controlling...

CVE-2026-74675

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

UBUNTU-CVE-2026-74675

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74676

CVE-2026-74676 affects the Linux kernel virtual terminal (VT) subsystem. The KDSKBMETA ioctl, which modifies keyboard meta mode, lacked the !perm permission check enforced by all other keyboard setter ioctls in vt_k_ioctl() . This allowed a process to change the meta mode on a non-controlling con...

EUVD-2026-64363

In the Linux kernel, the following vulnerability has been resolved: vt: add permission check for KDSKBMETA ioctl KDSKBMETA modifies keyboard meta mode but lacks the !perm check that all other keyboard setter ioctls in vtkioctl enforce, allowing a process to change meta mode on a non-controlling...

CVE-2026-74675 vt: stabilize tty reference in kbd_keycode with tty_port_tty_get

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74675 vt: stabilize tty reference in kbd_keycode with tty_port_tty_get

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

CVE-2026-74675

A race condition in the Linux kernel's virtual terminal (vt) subsystem affects the kbd_keycode() function, which reads vc->port.tty without acquiring a proper tty reference. This races against con_shutdown(), which clears port.tty under a different lock, potentially leading to a use-after-free...

EUVD-2026-64362

In the Linux kernel, the following vulnerability has been resolved: vt: stabilize tty reference in kbdkeycode with ttyportttyget kbdkeycode reads vc-port.tty without acquiring a tty reference, racing against conshutdown which clears port.tty under a different lock. Use ttyportttyget/ttykrefput to...

PT-2026-79681

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the virtual terminal vt component where the KDSKBMETA ioctl lacks a permission check. This allows an unauthorized process to modify the keyboard meta mode on a...

The vulnerability of the leave_alt-screen() function in the drivers/tty/vt/vt.c file of the Linux kernel-based virtual terminal driver allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the leavealt-screen function in the drivers/tty/vt/vt.c module of the Linux kernel virtual terminal driver framework is related to an incorrect calculation of the buffer size. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity,...

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-2026-49416 Integer overflow in vt(4) CONS_HISTORY ioctl

The CONSHISTORY ioctl handler did not adequately validate the requested history size. A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected. Subsequent initialization of the buffer wrote beyond the end of the allocation. An...

FreeBSD : FreeBSD -- Integer overflow in vt(4) CONS_HISTORY ioctl (71036b90-6476-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 71036b90-6476-11f1-958d-bc241121aa0a advisory. The CONSHISTORY ioctl handler did not adequately validate the requested history size. A large value...