In the Linux kernel, the following vulnerability has been resolved: fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds Add bounds checking to prevent writes past framebuffer boundaries when rendering text near screen edges. Return early if the Y position is off-screen and clip image height to screen boundary. Break from the rendering loop if the X position is off-screen. When clipping image width to fit the screen, update the character count to match the clipped width to prevent buffer size mismatches. Without the character count update, bit_putcs_aligned and bit_putcs_unaligned receive mismatched parameters where the buffer is allocated for the clipped width but cnt reflects the original larger count, causing out-of-bounds writes.

Уязвимость функции bit_putcs() модуля drivers/video/fbdev/core/bitblit.c драйвера устройств кадрового буфера ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Moderate: kernel security update

ELSA-2026-3488: kernel security update (MODERATE)

ELSA-2026-3275: kernel security update (MODERATE)

Moderate: kernel security update

ELSA-2026-2722: kernel security update (MODERATE)

Security update for the Linux Kernel

Security update for the Linux Kernel

Moderate: kernel security update

ELSA-2026-2282: kernel security update (MODERATE)

Security update for the Linux Kernel

Security update for the Linux Kernel

Security update for the Linux Kernel

ELSA-2026-50100: Unbreakable Enterprise kernel security update (IMPORTANT)

Security update for the Linux Kernel

Security update for the Linux Kernel

Security update for the Linux Kernel

Security update for the Linux Kernel

Security update for the Linux Kernel