CVE-2025-38467

Summary

In the Linux kernel, the following vulnerability has been resolved:

drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling

If there's support for another console device (such as a TTY serial), the kernel occasionally panics during boot. The panic message and a relevant snippet of the call stack is as follows:

Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Call trace: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 […]

Otherwise, the panics don't happen. This indicates that it's some sort of race condition.

Add a check to validate if the drm device can handle vblanks before calling drm_crtc_handle_vblank() to avoid this.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7affected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < a2130463fc9451005660b0eda7b61d5f746f7d74affected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < 87825fbd1e176cd5b896940f3959e7c9a916945daffected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < a40a35166f7e4f6dcd4b087d620c8228922dcb0aaffected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < 391e5ea5b877230b844c9bd8bbcd91b681b1ce2daffected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < e9d9b25f376737b81f06de9c5aa422b488f47184affected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < 996740652e620ef8ee1e5c65832cf2ffa498577daffected
LinuxLinux96976c3d9aff4e1387c30f6356ac01fa6f72ef46 < b846350aa272de99bf6fecfa6b08e64ebfb13173affected
LinuxLinux4.0affected
LinuxLinux0 < 4.0unaffected
LinuxLinux5.4.296 <= 5.4.*unaffected
LinuxLinux5.10.240 <= 5.10.*unaffected
LinuxLinux5.15.189 <= 5.15.*unaffected
LinuxLinux6.1.146 <= 6.1.*unaffected
LinuxLinux6.6.99 <= 6.6.*unaffected
LinuxLinux6.12.39 <= 6.12.*unaffected
LinuxLinux6.15.7 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References