{"id":"CVE-2026-93183","summary":"drm/lima: call drm_mm_init() with a valid allocation range","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/lima: call drm_mm_init() with a valid allocation range\n\nlima_vm_create() is currently run before va_start and va_end are set up,\nmeaning they are both 0. lima_vm_create() runs drm_mm_init() with them\nas arguments for the allocator, and if DRM_DEBUG_MM is enabled the\nDRM_MM_BUG_ON check in drm_mm_init then fires, as seen here on\nexynos4412-odroid-u2:\n\n[    1.736297] ------------[ cut here ]------------\n[    1.740370] kernel BUG at drivers/gpu/drm/drm_mm.c:931!\n[    1.745574] Internal error: Oops - BUG: 0 [#1] SMP ARM\n[    1.750697] Modules linked in:\n[    1.753734] CPU: 0 UID: 0 PID: 41 Comm: kworker/u16:1 Not tainted 7.0.10-postmarketos-exynos4 #11 PREEMPT\n[    1.763372] Hardware name: Samsung Exynos (Flattened Device Tree)\n[    1.769446] Workqueue: events_unbound deferred_probe_work_func\n[    1.775261] PC is at drm_mm_init+0x9c/0xa4\n[    1.779339] LR is at lima_vm_create+0x144/0x17c\n[ ... ]\n\nFix the issue by moving the lima_vm_create() call after va_start and\nva_end are set up.","modified":"2026-09-18T03:48:45.069401881Z","published":"2026-09-17T16:12:10.072Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93183.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/788917ba77f5d69bd368c1d176ecceda346a2951"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79a3331ee436c8b1454f897d539606c9b5ebdf9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad4e908096dff97646f77b04e2e2825225e215f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/af1f276d50c9d7ebcd25770f358ca503a89d96d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e0773ad25a34a49aece176721c466cf214e02222"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e2a7cee341986cb5b544a8286edc7fb0494c592e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93183.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93183"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a1d2a6339961efc078208dc3b2f006e9e9a8e119"},{"fixed":"af1f276d50c9d7ebcd25770f358ca503a89d96d7"},{"fixed":"fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a"},{"fixed":"ad4e908096dff97646f77b04e2e2825225e215f7"},{"fixed":"788917ba77f5d69bd368c1d176ecceda346a2951"},{"fixed":"79a3331ee436c8b1454f897d539606c9b5ebdf9f"},{"fixed":"e2a7cee341986cb5b544a8286edc7fb0494c592e"},{"fixed":"e0773ad25a34a49aece176721c466cf214e02222"},{"fixed":"3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93183.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93183.json"}}],"schema_version":"1.9.0"}