CVE-2025-38467 (GCVE-0-2025-38467)

Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2025-11-03 17:38
VLAI?
Title
drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7 (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < a2130463fc9451005660b0eda7b61d5f746f7d74 (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < 87825fbd1e176cd5b896940f3959e7c9a916945d (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < a40a35166f7e4f6dcd4b087d620c8228922dcb0a (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < 391e5ea5b877230b844c9bd8bbcd91b681b1ce2d (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < e9d9b25f376737b81f06de9c5aa422b488f47184 (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < 996740652e620ef8ee1e5c65832cf2ffa498577d (git)
Affected: 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 , < b846350aa272de99bf6fecfa6b08e64ebfb13173 (git)
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    Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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