Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: In the bitcursor function, the glyph index is checked for boundaries. The function retrieves the glyph under the cursor using the following code: c c = scrreadwvcpos; src = vcfont.data + c & charmask w height; Her...

CVE-2026-74635

A flaw was found in the Linux kernel's fbdev subsystem, specifically within the bitcursor function. A local user can exploit this vulnerability by writing arbitrary values to the /dev/vcsa device or by manipulating font changes. This improper handling of glyph indices can lead to an out-of-bounds...

SUSE CVE-2026-74635

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

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...

UBUNTU-CVE-2026-74635

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

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 fbdev: bitblit: bound-check glyph index in bit_cursor()

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...

EUVD-2026-64572

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 fbdev: bitblit: bound-check glyph index in bit_cursor()

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

CVE-2026-74635 is an out-of-bounds read in the Linux kernel's fbdev subsystem, specifically in bit_cursor() (drivers/video/fbdev/core/bitblit.c). The function indexes font glyph data using a value from the screen buffer without bounds-checking it against the font's glyph count. A local user can t...

Linux Distros Unpatched Vulnerability : CVE-2026-74635

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos %NASLMINLEVEL 80900 C Tenable, Inc...

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...

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...