CVE-2025-37965: drm/amd/display: Fix invalid context error in dml helper

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: 2025-05-20 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix invalid context error in dml helper [Why] "BUG: sleeping function called from invalid context" error. after: "drm/amd/display: Protect FPU in dml2_validate()/dml21_validate()" The populate_dml_plane_cfg_from_plane_state() uses the GFP_KERNEL flag for memory allocation, which shouldn't be used in atomic contexts. The allocation is needed only for using another helper function get_scaler_data_for_plane(). [How] Modify helpers to pass a pointer to scaler_data within existing context, eliminating the need for dynamic memory allocation/deallocation and copying. (cherry picked from commit bd3e84bc98f81b44f2c43936bdadc3241d654259)

Affected products

Linux kernel: from 6.12.25 before 6.12.29; from 6.14.4 before 6.14.7; 6.15-rc2, 6.15-rc3, 6.15-rc4, 6.15-rc5 — fixed in 6.12.29, 6.14.7

How to fix

Upgrade to a fixed version: Linux kernel 6.12.29, 6.14.7. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-37965 or the next vulnerability affects your stack