VDB
DEBIAN-CVE-2025-38312
DEBIAN-CVE-2025-38312
PUBLISHED
CVSS 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod() In fb_find_mode_cvt(), iff mode->refresh somehow happens to be 0x80000000, cvt.f_refresh will become 0 when multiplying it by 2 due to overflow. It's then passed to fb_cvt_hperiod(), where it's used as a divider -- division by 0 will result in kernel oops. Add a sanity check for cvt.f_refresh to avoid such overflow... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool.
Risk Scores
CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 6.1.67-1, 6.1.38-2, 6.1.38-4 |
| Debian:14 | linux | 0, 0 |
| Debian:11 | linux | 5.10.191-1, 5.10.197-1, 5.10.205-1 |
| Debian:11 | linux-6.1 | 6.1.140-1~deb11u1, 6.1.148-1~deb11u1, * |
| Debian:13 | linux | 0, 0 |
Timeline
- Jul 10, 2025 CVE Published
- Apr 28, 2026 CVE Updated