What’s Vulnerable › Vulnerabilities

CVE-2024-35922: fbmon: prevent division by zero in fb_videomode_from_videomode()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-19 · updated 2026-10-15
• Weakness: CWE-369

Description

In the Linux kernel, the following vulnerability has been resolved: fbmon: prevent division by zero in fb_videomode_from_videomode() The expression htotal * vtotal can have a zero value on overflow. It is necessary to prevent division by zero like in fb_var_to_videomode(). Found by Linux Verification Center (linuxtesting.org) with Svace.

Affected products

• Debian Linux: 10.0
• Linux kernel: before 4.19.312; from 4.20 before 5.4.274; from 5.5 before 5.10.215; from 5.11 before 5.15.155; from 5.16 before 6.1.86; from 6.2 before 6.6.27 — fixed in 4.19.312, 5.10.215, 5.15.155, 5.4.274, 6.1.86, 6.6.27

How to fix

Upgrade to a fixed version: Linux kernel 4.19.312, 5.10.215, 5.15.155, 5.4.274. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1b107d637fed68a787da77a3514ad06e57abd0b4
• https://git.kernel.org/stable/c/1fb52bc1de55e9e0bdf71fe078efd4da0889710f
• https://git.kernel.org/stable/c/3d4b909704bf2114f64f87363fa22b5ef8ac4a33
• https://git.kernel.org/stable/c/48d6bcfc31751ca2e753d901a2d82f27edf8a029
• https://git.kernel.org/stable/c/664206ff8b019bcd1e55b10b2eea3add8761b971
• https://git.kernel.org/stable/c/72d091b7515e0532ee015e144c906f3bcfdd6270
• https://git.kernel.org/stable/c/951838fee462aa01fa2a6a91d56f9a495082e7f0
• https://git.kernel.org/stable/c/c2d953276b8b27459baed1277a4fdd5dd9bd4126
• https://git.kernel.org/stable/c/1b107d637fed68a787da77a3514ad06e57abd0b4
• https://git.kernel.org/stable/c/1fb52bc1de55e9e0bdf71fe078efd4da0889710f
• https://git.kernel.org/stable/c/3d4b909704bf2114f64f87363fa22b5ef8ac4a33
• https://git.kernel.org/stable/c/48d6bcfc31751ca2e753d901a2d82f27edf8a029

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