K000163224: Linux kernel vulnerabilities CVE-2026-53401, CVE-2026-53402

Security Advisory Description CVE-2026-53401 In the Linux kernel, the following vulnerability has been resolved: fbdev: omap2: fix use-after-free in omapfbmmap omapfbmmap has a race condition with OMAPFBSETUPPLANE ioctl that can lead to use-after-free: The fbmmap entry point holds mmlock but not...

AZL-99558 CVE-2026-80786 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: fbdev: Wrap user-invoked calls to fbsetvar in helper Handle fbcon during display updates in fbsetvarfromuser. Check with fbcon if the mode change is possible, update hardware state and finally update fbcon. Update all callers. On...

CVE-2026-80786

In the Linux kernel, the following vulnerability has been resolved: fbdev: Wrap user-invoked calls to fbsetvar in helper Handle fbcon during display updates in fbsetvarfromuser. Check with fbcon if the mode change is possible, update hardware state and finally update fbcon. Update all callers. On...

CVE-2026-80786 fbdev: Wrap user-invoked calls to fb_set_var() in helper

In the Linux kernel, the following vulnerability has been resolved: fbdev: Wrap user-invoked calls to fbsetvar in helper Handle fbcon during display updates in fbsetvarfromuser. Check with fbcon if the mode change is possible, update hardware state and finally update fbcon. Update all callers. On...

CVE-2026-80786

CVE-2026-80786 affects the Linux kernel fbdev (framebuffer) subsystem. The root cause is that user-invoked calls to fb_set_var() from sysfs and driver code paths were missing fbcon -related steps (checking mode-change feasibility, updating hardware state, and updating fbcon). Only the FBIOPUT_VSC...

EUVD-2026-71429

In the Linux kernel, the following vulnerability has been resolved: fbdev: Wrap user-invoked calls to fbsetvar in helper Handle fbcon during display updates in fbsetvarfromuser. Check with fbcon if the mode change is possible, update hardware state and finally update fbcon. Update all callers. On...

Linux Distros Unpatched Vulnerability : CVE-2026-80786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbdev: Wrap user-invoked calls to fbsetvar in helper Handle fbcon during display updates in fbsetvarfromuser. Check with fbcon if the mode change is possible,...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098729)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098729 advisory. 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 followi...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098835)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098835 advisory. 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...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count CVE-2026-53392 In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors CVE-2026-53393 In th...

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...

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...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbcon: Release buffer when fbcondosetfont fails. syzbot is reporting a memory leak at fbcondosetfont, for the commit a5a923038d70 “fbdev: fbcon: Properly revert changes when vcresize fails”. It was overlooked that the buff...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102096)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102096 advisory. 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...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-2045)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2045 advisory. In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement CVE-2026-45945 In the Linux kernel, the following vulnerabilit...

The vulnerability in the drivers/video/fbdev/core/fbcon.c component of the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the drivers/video/fbdev/core/fbcon.c component in the Linux operating system is related to pointer dereferencing errors. Exploiting this vulnerability can allow an attacker to cause a service failure...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix race condition during PASID entry replacement CVE-2026-45945 In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix missing run load for vcn0 in attrdatagetblocklocked...

CVE-2026-74424

In the Linux kernel, the following vulnerability has been resolved: fbcon: fix NULL pointer dereference for a console without vcdata fbconnewmodelist runs when a framebuffer's modelist changes. For each console mapped to it with fbdisplayi.mode set, it reads vcconsi.d and passes the vcnum to...

CVE-2026-74424

In the Linux kernel, the following vulnerability has been resolved: fbcon: fix NULL pointer dereference for a console without vcdata fbconnewmodelist runs when a framebuffer's modelist changes. For each console mapped to it with fbdisplayi.mode set, it reads vcconsi.d and passes the vcnum to...

UBUNTU-CVE-2026-74424

In the Linux kernel, the following vulnerability has been resolved: fbcon: fix NULL pointer dereference for a console without vcdata fbconnewmodelist runs when a framebuffer's modelist changes. For each console mapped to it with fbdisplayi.mode set, it reads vcconsi.d and passes the vcnum to...