| ID |
CVE-2026-89806
|
| Sažetak |
In the Linux kernel, the following vulnerability has been resolved:
drm/sysfb: ofdrm: Fix integer overflow in fb_size calculation
The framebuffer size calculation `fb_size = linebytes * height` can
overflow when both values are large (e.g., 46341 * 46341 > INT_MAX).
Since linebytes and height are both int types, the multiplication is
performed as int * int, which results in undefined behavior on overflow.
Use check_mul_overflow() to detect and prevent this overflow, consistent
with the approach used in simpledrm.c and corebootdrm.c. |
| Reference |
|
| CVSS |
| Base: | 8.4 |
| Impact: | 5.9 |
| Exploitability: | 2.5 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| HIGH |
HIGH |
HIGH |
|
| CVSS vektor |
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Zadnje važnije ažuriranje |
03-10-2026 - 11:17 |
| Objavljeno |
16-09-2026 - 11:16 |
