{"id":"CVE-2025-38354","summary":"drm/msm/gpu: Fix crash when throttling GPU immediately during boot","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/gpu: Fix crash when throttling GPU immediately during boot\n\nThere is a small chance that the GPU is already hot during boot. In that\ncase, the call to of_devfreq_cooling_register() will immediately try to\napply devfreq cooling, as seen in the following crash:\n\n  Unable to handle kernel paging request at virtual address 0000000000014110\n  pc : a6xx_gpu_busy+0x1c/0x58 [msm]\n  lr : msm_devfreq_get_dev_status+0xbc/0x140 [msm]\n  Call trace:\n   a6xx_gpu_busy+0x1c/0x58 [msm] (P)\n   devfreq_simple_ondemand_func+0x3c/0x150\n   devfreq_update_target+0x44/0xd8\n   qos_max_notifier_call+0x30/0x84\n   blocking_notifier_call_chain+0x6c/0xa0\n   pm_qos_update_target+0xd0/0x110\n   freq_qos_apply+0x3c/0x74\n   apply_constraint+0x88/0x148\n   __dev_pm_qos_update_request+0x7c/0xcc\n   dev_pm_qos_update_request+0x38/0x5c\n   devfreq_cooling_set_cur_state+0x98/0xf0\n   __thermal_cdev_update+0x64/0xb4\n   thermal_cdev_update+0x4c/0x58\n   step_wise_manage+0x1f0/0x318\n   __thermal_zone_device_update+0x278/0x424\n   __thermal_cooling_device_register+0x2bc/0x308\n   thermal_of_cooling_device_register+0x10/0x1c\n   of_devfreq_cooling_register_power+0x240/0x2bc\n   of_devfreq_cooling_register+0x14/0x20\n   msm_devfreq_init+0xc4/0x1a0 [msm]\n   msm_gpu_init+0x304/0x574 [msm]\n   adreno_gpu_init+0x1c4/0x2e0 [msm]\n   a6xx_gpu_init+0x5c8/0x9c8 [msm]\n   adreno_bind+0x2a8/0x33c [msm]\n   ...\n\nAt this point we haven't initialized the GMU at all yet, so we cannot read\nthe GMU registers inside a6xx_gpu_busy(). A similar issue was fixed before\nin commit 6694482a70e9 (\"drm/msm: Avoid unclocked GMU register access in\n6xx gpu_busy\"): msm_devfreq_init() does call devfreq_suspend_device(), but\nunlike msm_devfreq_suspend(), it doesn't set the df-\u003esuspended flag\naccordingly. This means the df-\u003esuspended flag does not match the actual\ndevfreq state after initialization and msm_devfreq_get_dev_status() will\nend up accessing GMU registers, causing the crash.\n\nFix this by setting df-\u003esuspended correctly during initialization.\n\nPatchwork: https://patchwork.freedesktop.org/patch/650772/","modified":"2026-04-02T12:47:56.669483Z","published":"2025-07-25T12:47:26.087Z","related":["MGASA-2025-0218","MGASA-2025-0219","SUSE-SU-2025:02853-1","SUSE-SU-2025:02923-1","SUSE-SU-2025:02969-1","SUSE-SU-2025:02996-1","SUSE-SU-2025:02997-1","SUSE-SU-2025:03011-1","SUSE-SU-2025:03023-1","SUSE-SU-2025:20577-1","SUSE-SU-2025:20586-1","SUSE-SU-2025:20601-1","SUSE-SU-2025:20602-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","openSUSE-SU-2025:20081-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38354.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1847ea44e3bdf7da8ff4158bc01b43a2e46394bd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7946a10f8da75abc494e4bb80243e153e93e459a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a6f673cc9488fd722c601fe020601dba14db21b2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae2015b0dbc0eea7aaf022194371f451f784d994"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b71717735be48d7743a34897e9e44a0b53e30c0e"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38354.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38354"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6694482a70e9536efbf2ac233cbf0c302d6e2dae"},{"fixed":"ae2015b0dbc0eea7aaf022194371f451f784d994"},{"fixed":"7946a10f8da75abc494e4bb80243e153e93e459a"},{"fixed":"1847ea44e3bdf7da8ff4158bc01b43a2e46394bd"},{"fixed":"a6f673cc9488fd722c601fe020601dba14db21b2"},{"fixed":"b71717735be48d7743a34897e9e44a0b53e30c0e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"1f6c087dd6a915f1c3471f0f0f696847fc8c592f"},{"last_affected":"9c8b3f05fb18fba12f3fca80a378c9b8f3d04cd6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38354.json"}}],"schema_version":"1.7.5"}