What’s Vulnerable › Vulnerabilities

CVE-2024-56776: drm/sti: avoid potential dereference of error pointers

• 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: 2025-01-08 · updated 2026-06-17
• Weakness: CWE-754

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.

Affected products

• Linux kernel: from 4.6 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.64; from 6.7 before 6.12.4 — fixed in 5.15.174, 6.1.120, 6.12.4, 6.6.64

How to fix

Upgrade to a fixed version: Linux kernel 5.15.174, 6.1.120, 6.12.4, 6.6.64. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/40725c5fabee804fecce41d4d5c5bae80c45e1c4
• https://git.kernel.org/stable/c/831214f77037de02afc287eae93ce97f218d8c04
• https://git.kernel.org/stable/c/8ab73ac97c0fa528f66eeccd9bb53eb6eb7d20dc
• https://git.kernel.org/stable/c/e98ff67f5a68114804607de549c2350d27628fc7
• https://git.kernel.org/stable/c/f67786293193cf01ebcc6fdbcbd1587b24f52679
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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