What’s Vulnerable › Vulnerabilities

CVE-2026-80577: drm/panthor: skip zero-sized firmware sections

• 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: 2026-08-26 · updated 2026-08-26

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: skip zero-sized firmware sections panthor_fw_load_section_entry() skips BO creation when the firmware section VA range is empty. If such a section is added to the firmware section list, section->mem is left as NULL. Later reload and unplug paths iterate over all firmware sections and dereference section->mem, which can lead to a NULL pointer dereference. Zero-sized firmware sections are valid, so accept them as no-op entries but skip adding them to the section list.

Affected products

• Linux kernel: 6.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/25556a46ae6ecf2a9f1c1c5096828eecd4596b91
• https://git.kernel.org/stable/c/2b8f13d3c7e26c46c20d9e367904cf01729c88e6
• https://git.kernel.org/stable/c/5d222b657f02a37f658e4e21925b85b4703855e7
• https://git.kernel.org/stable/c/f0f3c3922db981031733a25c51e1f37cf9b9e251

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