{"cve":"CVE-2025-39807","nvd":{"published":"2025-09-16T13:15:51.783","modified":"2026-10-19T21:10:00.160","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Add error handling for old state CRTC in atomic_disable\n\nIntroduce error handling to address an issue where, after a hotplug\nevent, the cursor continues to update. This situation can lead to a\nkernel panic due to accessing the NULL `old_state->crtc`.\n\nE,g.\nUnable to handle kernel NULL pointer dereference at virtual address\nCall trace:\n mtk_crtc_plane_disable+0x24/0x140\n mtk_plane_atomic_update+0x8c/0xa8\n drm_atomic_helper_commit_planes+0x114/0x2c8\n drm_atomic_helper_commit_tail_rpm+0x4c/0x158\n commit_tail+0xa0/0x168\n drm_atomic_helper_commit+0x110/0x120\n drm_atomic_commit+0x8c/0xe0\n drm_atomic_helper_update_plane+0xd4/0x128\n __setplane_atomic+0xcc/0x110\n drm_mode_cursor_common+0x250/0x440\n drm_mode_cursor_ioctl+0x44/0x70\n drm_ioctl+0x264/0x5d8\n __arm64_sys_ioctl+0xd8/0x510\n invoke_syscall+0x6c/0xe0\n do_el0_svc+0x68/0xe8\n el0_svc+0x34/0x60\n el0t_64_sync_handler+0x1c/0xf8\n el0t_64_sync+0x180/0x188\n\nAdding NULL pointer checks to ensure stability by preventing operations\non an invalid CRTC state.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/0c6b24d70da21201ed009a2aca740d2dfddc7ab5","https://git.kernel.org/stable/c/7d5cc22efa44e0fe321ce195c71c3d7da211fbb2","https://git.kernel.org/stable/c/9a94e9d8b50bcfe89693bc899a54d3866d86e973"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-39807","score":0.00157,"percentile":0.04834,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}