Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: The issue was fixed by correcting fbsetvar to prevent a null-ptr dereference in fbvideomodetovar. If fbaddvideomode in fbsetvar fails to allocate memory for fbvideomode, it may lead to a null-ptr dereference in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: In the bitPutcs function, the bound-check glyph index was derived from the character value masked by 0xff or 0x1ff. This may lead to reading beyond the end of the built-in font array, exceeding the actual number o...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

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 A read of size 4 at address ff11000001b3c69...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fbdev: vt8500lcdfb: fixed the issue where dmafreecoherent was not called when memory was freed. The fbi-fb.screenbuffer is allocated using dmaalloccoherent, but it is not freed if an error path occurs...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: core: fbcvt: avoid division by 0 in fbcvthperiod In fbfindmodecvt, if mode-refresh happens to be 0x80000000, cvt.frefresh will become 0 when multiplied by 2 due to overflow. This value is then passed to fbcvthperiod, where...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: In of: displaytiming, there is a fix for the refcount leak in ofgetdisplaytimings. The function ofparsephandle returns a devicenode with the refcount incremented. This value is stored in ‘entry’ and then copied to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: sh7760fb: A possible memory leak has been fixed in sh7760fballocmem. When information such as info-screenbase is not ready, calling sh7760fbfreemem does not release the memory correctly. Instead, call dmafreecoherent...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: fbdev: fbpm2fb: Avoid potential divide by zero errors In dofbioctl of fbmem.c, if cmd is FBIOPUTVSCREENINFO, var will be copied from the user. Then, the functions fbsetvar and info-fbops-fbcheckvar will be called, which might...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/client: Fixed a memory leak in drmclienttargetcloned. The dmtmode variable is allocated but never freed within this function. This issue was discovered with the ast driver, but most drivers that use the generic fbdevsetup...

CVE-2026-64245

A flaw was found in the Linux kernel's framebuffer device fbdev subsystem. Specifically, within the fbfindmode function, a use-after-free UAF vulnerability exists. This occurs because a memory buffer is released while still being referenced, potentially allowing an attacker to access or manipulat...

SUSE CVE-2026-64245

In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fbfindmode If modeoption is NULL, it is assigned from modeoptionbuf: if !modeoption fbgetoptionsNULL, &modeoptionbuf; modeoption = modeoptionbuf; Later, name is assigned from modeoption: const...

DEBIAN-CVE-2026-64245

In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fbfindmode If modeoption is NULL, it is assigned from modeoptionbuf: if !modeoption fbgetoptionsNULL, &modeoptionbuf; modeoption = modeoptionbuf; Later, name is assigned from modeoption: const...

CVE-2026-64245

In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fbfindmode If modeoption is NULL, it is assigned from modeoptionbuf: if !modeoption fbgetoptionsNULL, &modeoptionbuf; modeoption = modeoptionbuf; Later, name is assigned from modeoption: const...

UBUNTU-CVE-2026-64245

In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fbfindmode If modeoption is NULL, it is assigned from modeoptionbuf: if !modeoption fbgetoptionsNULL, &modeoptionbuf; modeoption = modeoptionbuf; Later, name is assigned from modeoption: const...

CVE-2026-64245 fbdev: modedb: fix a possible UAF in fb_find_mode()

In the Linux kernel, the following vulnerability has been resolved: fbdev: modedb: fix a possible UAF in fbfindmode If modeoption is NULL, it is assigned from modeoptionbuf: if !modeoption fbgetoptionsNULL, &modeoptionbuf; modeoption = modeoptionbuf; Later, name is assigned from modeoption: const...

PT-2026-64360

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the fb find mode function within the fbdev modedb component. When the mode option is NULL, it is assigned the value of mode option buf. The mode option b...

CVE-2026-63826

A flaw was found in the Linux kernel's framebuffer device fbdev component. When the storemodes function replaces a framebuffer's list of display modes, it fails to properly clear old pointers before freeing the old list. This can result in a use-after-free vulnerability, a type of memory...

SUSE CVE-2026-53402

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...

SUSE CVE-2026-63826

In the Linux kernel, the following vulnerability has been resolved: 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 fbdestroymodelist. Two fields still point into that freed list. One pointer...

CVE-2026-63826

In the Linux kernel, the following vulnerability has been resolved: 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 fbdestroymodelist. Two fields still point into that freed list. One pointer...