CVE-2025-38312
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 9027ce4c037b566b658b8939a76326b7125e3627 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 610f247f2772e4f92b63442125a1b7ade79898d8 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 2d63433e8eaa3c91b2948190e395bc67009db0d9 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 54947530663edcbaaee1314c01fdd8c72861b124 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | ab91647acdf43b984824776559a452212eaeb21a | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | b235393b9f43ff86a38ca2bde6372312ea215dc5 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 53784073cbad18f75583fd3da9ffdfc4d1f05405 | Unavailable | None listed |
| 96fe6a2109db29cd15b90a093c16e6cb4b19371a | affected | git | 3f6dae09fc8c306eb70fdfef70726e1f154e173a | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.14 | Unavailable | None listed |
| 5.4.295 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.239 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.186 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.142 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.94 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.34 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.3 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |