CVE-2025-40322
EPSS 0.08%發布日:2025/12/8修改日:2026/4/28
描述
In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bit_putcs* bit_putcs_aligned()/unaligned() derived the glyph pointer from the character value masked by 0xff/0x1ff, which may exceed the actual font's glyph count and read past the end of the built-in font array. Clamp the index to the actual glyph count before computing the address. This fixes a global out-of-bounds read reported by syzbot.
受影響套件(2)
- Debian/linuxfrom 0, < 5.10.247-1
- Debian/linux-6.1from 0, < 6.1.159-1~deb11u1