{"id":"CVE-2026-43294","revision":"ee38cc8700ec4d018c5e89383d94e7c1","records":[{"revision":"ee38cc8700ec4d018c5e89383d94e7c1","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-43294","aliases":[],"title":"drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels\n\nSince commit 56de5e305d4b (\"clk: renesas: r9a07g044: Add MSTOP for RZ/G2L\")\nwe may get the following kernel panic, for some panels, when rebooting:\n\n  systemd-shutdown[1]: Rebooting.\n  Call trace:\n   ...\n   do_serror+0x28/0x68\n   el1h_64_error_handler+0x34/0x50\n   el1h_64_error+0x6c/0x70\n   rzg2l_mipi_dsi_host_transfer+0x114/0x458 (P)\n   mipi_dsi_device_transfer+0x44/0x58\n   mipi_dsi_dcs_set_display_off_multi+0x9c/0xc4\n   ili9881c_unprepare+0x38/0x88\n   drm_panel_unprepare+0xbc/0x108\n\nThis happens for panels that need to send MIPI-DSI commands in their\nunprepare() callback. Since the MIPI-DSI interface is stopped at that\npoint, rzg2l_mipi_dsi_host_transfer() triggers the kernel panic.\n\nFix by moving rzg2l_mipi_dsi_stop() to new callback function\nrzg2l_mipi_dsi_atomic_post_disable().\n\nWith this change we now have the correct power-down/stop sequence:\n\n  systemd-shutdown[1]: Rebooting.\n  rzg2l-mipi-dsi 10850000.dsi: rzg2l_mipi_dsi_atomic_disable(): entry\n  ili9881c-dsi 10850000.dsi.0: ili9881c_unprepare(): entry\n  rzg2l-mipi-dsi 10850000.dsi: rzg2l_mipi_dsi_atomic_post_disable(): entry\n  reboot: Restarting system","state":0,"publishedAt":"2026-05-08T13:11:17.483+00:00","modifiedAt":"2026-10-21T12:40:29.748+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7a043f978ed1433bddb088a732e9bb91501ebd76\",\n                            \"lessThan\": \"3cd7a71958c9f7f1def1a110e1ac98c022a554cd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7a043f978ed1433bddb088a732e9bb91501ebd76\",\n                            \"lessThan\": \"ad9a3246e76b83cd19eb07088111a743a9558bcd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7a043f978ed1433bddb088a732e9bb91501ebd76\",\n                            \"lessThan\": \"79f42487ed60d0d5ffce97c3bb98f80c3d17735a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7a043f978ed1433bddb088a732e9bb91501ebd76\",\n                            \"lessThan\": \"41cda667ffc5074c56279c632b0c20024da6ecdd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7a043f978ed1433bddb088a732e9bb91501ebd76\",\n                            \"lessThan\": \"64aa8b3a60a825134f7d866adf05c024bbe0c24c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.16\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.6\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/3cd7a71958c9f7f1def1a110e1ac98c022a554cd","https://git.kernel.org/stable/c/ad9a3246e76b83cd19eb07088111a743a9558bcd","https://git.kernel.org/stable/c/79f42487ed60d0d5ffce97c3bb98f80c3d17735a","https://git.kernel.org/stable/c/41cda667ffc5074c56279c632b0c20024da6ecdd","https://git.kernel.org/stable/c/64aa8b3a60a825134f7d866adf05c024bbe0c24c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43294","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-43294","identifiers":["CVE-2026-43294"]},"retained":false,"historicalAffected":[]}],"coverage":[]}