CVE-2026-89806
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/sysfb: ofdrm: Fix integer overflow in fb_size calculation
In the Linux kernel, the following vulnerability has been resolved: drm/sysfb: ofdrm: Fix integer overflow in fb_size calculation The framebuffer size calculation `fb_size = linebytes * height` can overflow when both values are large (e.g., 46341 * 46341 > INT_MAX). Since linebytes and height are both int types, the multiplication is performed as int * int, which results in undefined behavior on overflow. Use check_mul_overflow() to detect and prevent this overflow, consistent with the approach used in simpledrm.c and corebootdrm.c.
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) |
|---|---|---|---|---|---|
| c8a17756c42581ba1a567d1dd3b69e8f5619a7d8 | affected | git | 0cec951667a624fafaca2695c46042f45851caec | Unavailable | None listed |
| c8a17756c42581ba1a567d1dd3b69e8f5619a7d8 | affected | git | 711fe7949d37656a5586244afee9523b9e5e37e9 | Unavailable | None listed |
| c8a17756c42581ba1a567d1dd3b69e8f5619a7d8 | affected | git | ded6ad826fe0fd059333d3a3b3e1742c8e45ff41 | Unavailable | None listed |
| c8a17756c42581ba1a567d1dd3b69e8f5619a7d8 | affected | git | d9daf9a6e7a6f82ef338a09386eefc6807100d3f | Unavailable | None listed |
| c8a17756c42581ba1a567d1dd3b69e8f5619a7d8 | affected | git | c6f48e59ece0123f6a11527ad4d89b21c2d65b87 | 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) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |