VDB
DEBIAN-CVE-2025-40322
DEBIAN-CVE-2025-40322
PUBLISHED
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.
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 6.16.12-1~bpo13+1, 6.12.38-1, 6.12.41-1 |
| Debian:13 | linux | 0, 6.12.43-1, 6.12.57-1~bpo12+1 |
| Debian:11 | linux-6.1 | *, 6.1.158-1, 6.1.153-1 |
| Debian:11 | linux | 5.10.218-1, 5.10.106-1, 5.10.120-1 |
| Debian:12 | linux | 6.1.112-1, 6.1.115-1, 6.1.119-1 |
Exploit Intelligence
- 4081.3.7.yml (github-poc)
Timeline
- Dec 8, 2025 CVE Published
- Apr 28, 2026 CVE Updated