{"id":"CVE-2024-44993","summary":"drm/v3d: Fix out-of-bounds read in `v3d_csd_job_run()`","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Fix out-of-bounds read in `v3d_csd_job_run()`\n\nWhen enabling UBSAN on Raspberry Pi 5, we get the following warning:\n\n[  387.894977] UBSAN: array-index-out-of-bounds in drivers/gpu/drm/v3d/v3d_sched.c:320:3\n[  387.903868] index 7 is out of range for type '__u32 [7]'\n[  387.909692] CPU: 0 PID: 1207 Comm: kworker/u16:2 Tainted: G        WC         6.10.3-v8-16k-numa #151\n[  387.919166] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)\n[  387.925961] Workqueue: v3d_csd drm_sched_run_job_work [gpu_sched]\n[  387.932525] Call trace:\n[  387.935296]  dump_backtrace+0x170/0x1b8\n[  387.939403]  show_stack+0x20/0x38\n[  387.942907]  dump_stack_lvl+0x90/0xd0\n[  387.946785]  dump_stack+0x18/0x28\n[  387.950301]  __ubsan_handle_out_of_bounds+0x98/0xd0\n[  387.955383]  v3d_csd_job_run+0x3a8/0x438 [v3d]\n[  387.960707]  drm_sched_run_job_work+0x520/0x6d0 [gpu_sched]\n[  387.966862]  process_one_work+0x62c/0xb48\n[  387.971296]  worker_thread+0x468/0x5b0\n[  387.975317]  kthread+0x1c4/0x1e0\n[  387.978818]  ret_from_fork+0x10/0x20\n[  387.983014] ---[ end trace ]---\n\nThis happens because the UAPI provides only seven configuration\nregisters and we are reading the eighth position of this u32 array.\n\nTherefore, fix the out-of-bounds read in `v3d_csd_job_run()` by\naccessing only seven positions on the '__u32 [7]' array. The eighth\nregister exists indeed on V3D 7.1, but it isn't currently used. That\nbeing so, let's guarantee that it remains unused and add a note that it\ncould be set in a future patch.","modified":"2026-05-28T03:53:44.140160562Z","published":"2024-09-04T19:54:39.545Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44993.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/497d370a644d95a9f04271aa92cb96d32e84c770"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d656b82c4b30cf12715e6cd129d3df808fde24a7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44993.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-44993"},{"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":"0ad5bc1ce4634ce9b5eaf017b01399ec5e49a03d"},{"fixed":"d656b82c4b30cf12715e6cd129d3df808fde24a7"},{"fixed":"497d370a644d95a9f04271aa92cb96d32e84c770"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-44993.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.10.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-44993.json"}}],"schema_version":"1.7.5"}