CVE-2026-63826

The CVE-2026-63826 issue affects the Linux kernel fbdev path, where store_modes() frees a framebuffer modelist but leaves stale pointers in fb_display[i].mode and fb_info->mode. The root cause is use-after-free reads when fbcon_mode_deleted() and show_mode() dereference these pointers after fb...

CVE-2026-53403

The CVE-2026-53403 issue is a Linux kernel framebuffer (fbdev) risk fixed by correcting fb_new_modelist to preserve the current mode in info->var when the modelist is replaced. Root cause: info->var must have a matching entry in info->modelist; if store_modes() or fb_new_modelist() chang...

CVE-2026-53402 fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font()

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: fix out-of-bounds read in errout of fbcondosetfont When fbcondosetfont fails e.g., due to a memory allocation failure inside vcresize under heavy memory pressure, it jumps to the errout label to roll back the consol...

CVE-2026-53402 fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font()

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: fix out-of-bounds read in errout of fbcondosetfont When fbcondosetfont fails e.g., due to a memory allocation failure inside vcresize under heavy memory pressure, it jumps to the errout label to roll back the consol...

PT-2026-61142

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the store modes function within the fbdev component. The function replaces a framebuffer modelist with modes from userspace and frees the old list using ...

PT-2026-61107

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read exists in the err out label of the fbcon do set font function within the fbdev component. When fbcon do set font fails, such as during a memory allocation failure i...

Linux Distros Unpatched Vulnerability : CVE-2026-53402

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbdev: fbcon: fix out-of-bounds read in errout of fbcondosetfont When fbcondosetfont fails e.g., due to a memory allocation failure inside vcresize under heavy...

Linux Distros Unpatched Vulnerability : CVE-2026-63826

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbdev: fix use-after-free in storemodes storemodes replaces a framebuffer's modelist with modes from userspace. On success it frees the old modelist with...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbcon: check the return value of con2fbacquirenewinfo. If fbconopen fails when called from con2fbacquirenewinfo, then info-fbconpar pointer remains NULL, and this pointer will be dereferenced later. A check for the return value o...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: drm, fbcon, vgaswitcheroo: Avoid race conditions in the fbcon setup process. Protect the vgaswitcherooclientfbset function with a console lock. This prevents out-of-band OOB access in the fbconremapall function. Without holdin...

Astra Linux – Vulnerability in Linux

A buffer overflow attack in fbcon in the Linux kernel before version 5.9.7 could be exploited by local attackers to read privileged information or potentially cause the kernel to crash. This issue is identified as CID-3c4e0dff2095. This vulnerability arises because the KDFONTOPCOPY function in...

SUSE CVE-2026-46191

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

Linux Distros Unpatched Vulnerability : CVE-2026-46191

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs...

CVE-2026-46191

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

CVE-2026-46191

CVE-2026-46191 concerns the Linux kernel fbcon component: when console rotation fails during fbcon_rotate_font(), the font buffer may overflow due to an OOB access. The fix clears the font buffer if the reallocation during console rotation fails and ensures the rotated buffer does not overflow. D...

CVE-2026-46191 fbcon: Avoid OOB font access if console rotation fails

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

CVE-2026-46191

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

CVE-2026-46191

In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbconrotatefont. The putcs implementations for the rotated buffer will return early in this case. S...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the failure of the console rotation in fbcon; as a result, the font buffer is not cleared when...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbcon: The old font data is always restored in fbcondosetfont. The commit a5a923038d70 fbdev: fbcon: Properly revert changes when vcresize fails started restoring old font data upon failure of vcresize. However, this only applies...