What’s Vulnerable › Vulnerabilities

CVE-2026-98404: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()

• Severity: unknown
• 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: 2026-10-14 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create() Smatch complains that returning a NULL here will lead to a NULL pointer dereference in drm_mode_addfb2(). Return an error pointer instead.

Affected products

• Linux kernel: 4.2 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07de0b31dd64094cd7d25729beaf2ecae74daa72
• https://git.kernel.org/stable/c/3fe8a33715265ecb24ca0bcd0a575c926da4277c
• https://git.kernel.org/stable/c/45dc2788a5b0e1e2824d1f98af521bd3acc340d7
• https://git.kernel.org/stable/c/5eda6cda0031ba17559d56882353be39e568ec09
• https://git.kernel.org/stable/c/94579f24e2b526a04eb41050af0ba018c6f528e7
• https://git.kernel.org/stable/c/974845d2535a250b180e62f9ed50284f312c01a3
• https://git.kernel.org/stable/c/975f3cf302bb7d7336df4c630a7c07e12780ad10
• https://git.kernel.org/stable/c/f1050a7d365283678b253828739d3866ae546a72

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