Riskcovery

CVE-2026-31618

fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO

State
Published
Severity
Not scored
Published
Apr 24, 2026
Updated
Jun 14, 2026
Reserved
Mar 9, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO

Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2f207e46c62688bb7eb4e3feaf9a0d94020fb0c9Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6c05191598eca87a87329b3f6e4a0825775f09cfAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 59bde9e0930efef1286768cb65fc78d5e5267f93Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 859a239d58a812b61267d9944b701affe6a6244eAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 53cb4e79a07124d2ebe502983c29800104080b47Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before fc386daa6846551a88d338ba9864fc2812cd9030Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6567d3e1aaadfebf44ce7dc9ea2630323cd4c736Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 63dfb0b4741f46d65b667c4275132b3d1966acc8Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8f98b81fe011e1879e6a7b1247e69e06a5e17af2Affected
LinuxLinux
  • 2.6.12Affected
  • before 2.6.12Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.136 through 6.6.*Not affected
  • 6.12.83 through 6.12.*Not affected
  • 6.18.24 through 6.18.*Not affected
  • 6.19.14 through 6.19.*Not affected
  • 7.0.1 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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