DEBIAN-CVE-2026-97604

In the Linux kernel, the following vulnerability has been resolved: fbdev: vfb: defer cleanup until the last reference FBIOGETCMAP takes a shallow snapshot of info-cmap and performs the usercopy after dropping info-lock. vfbremove frees the colormap immediately after unregistering the framebuffer...

CVE-2025-40323: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fbcon: Set fbdisplayi-mode to NULL when the mode is released Recently, we discovered the following issue through syzkaller: BUG: KASAN: slab-use-after-free in fbmodeisequal+0x285/0x2f0 Read of size 4 at addr ff11000001b3c69c by...

CVE-2022-49978

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbpm2fb: Avoid potential divide by zero error In dofbioctl of fbmem.c, if cmd is FBIOPUTVSCREENINFO, var will be copied from user, then go through fbsetvar and info-fbops-fbcheckvar which could may be pm2fbcheckvar. Along...

CVE-2022-49978 fbdev: fb_pm2fb: Avoid potential divide by zero error

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbpm2fb: Avoid potential divide by zero error In dofbioctl of fbmem.c, if cmd is FBIOPUTVSCREENINFO, var will be copied from user, then go through fbsetvar and info-fbops-fbcheckvar which could may be pm2fbcheckvar. Along...

CVE-2022-49978

In the Linux kernel, CVE-2022-49978 concerns the fbdev subsystem (fb_pm2fb) where, during do_fb_ioctl() handling of FBIOPUT_VSCREENINFO, a freely copied var may propagate to fb_set_var()/fb_check_var() and reach pm2fb_check_var(). If var->pixclock is zero, the reciprocal check can trigger a di...

CVE-2022-49978: Divide By Zero

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbpm2fb: Avoid potential divide by zero error In dofbioctl of fbmem.c, if cmd is FBIOPUTVSCREENINFO, var will be copied from user, then go through fbsetvar and info-fbops-fbcheckvar which could may be pm2fbcheckvar. Along...

CVE-2022-50101: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: vt8623fb: Check the size of screen before memsetio In the function vt8623fbsetpar, the value of 'screensize' is calculated by the user input. If the user provides the improper value, the value of 'screensize' may...