{"id":"CVE-2026-93183","state":"PUBLISHED","title":"drm/lima: call drm_mm_init() with a valid allocation range","description":"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.","publishedAt":"2026-09-17T16:12:10.072Z","updatedAt":"2026-10-19T09:06:56.138Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"af1f276d50c9d7ebcd25770f358ca503a89d96d7","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"ad4e908096dff97646f77b04e2e2825225e215f7","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"788917ba77f5d69bd368c1d176ecceda346a2951","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"79a3331ee436c8b1454f897d539606c9b5ebdf9f","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"e2a7cee341986cb5b544a8286edc7fb0494c592e","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"e0773ad25a34a49aece176721c466cf214e02222","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/lima/lima_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/lima/lima_device.c"]}],"references":["https://git.kernel.org/stable/c/af1f276d50c9d7ebcd25770f358ca503a89d96d7","https://git.kernel.org/stable/c/fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a","https://git.kernel.org/stable/c/ad4e908096dff97646f77b04e2e2825225e215f7","https://git.kernel.org/stable/c/788917ba77f5d69bd368c1d176ecceda346a2951","https://git.kernel.org/stable/c/79a3331ee436c8b1454f897d539606c9b5ebdf9f","https://git.kernel.org/stable/c/e2a7cee341986cb5b544a8286edc7fb0494c592e","https://git.kernel.org/stable/c/e0773ad25a34a49aece176721c466cf214e02222","https://git.kernel.org/stable/c/3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93183.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93183","state":"PUBLISHED","datePublished":"2026-09-17T16:12:10.072Z","dateUpdated":"2026-10-19T09:06:56.138Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.091Z"},"containers":{"cna":{"title":"drm/lima: call drm_mm_init() with a valid allocation range","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"af1f276d50c9d7ebcd25770f358ca503a89d96d7","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"ad4e908096dff97646f77b04e2e2825225e215f7","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"788917ba77f5d69bd368c1d176ecceda346a2951","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"79a3331ee436c8b1454f897d539606c9b5ebdf9f","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"e2a7cee341986cb5b544a8286edc7fb0494c592e","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"e0773ad25a34a49aece176721c466cf214e02222","versionType":"git"},{"version":"a1d2a6339961efc078208dc3b2f006e9e9a8e119","status":"affected","lessThan":"3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/lima/lima_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/lima/lima_device.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/af1f276d50c9d7ebcd25770f358ca503a89d96d7"},{"url":"https://git.kernel.org/stable/c/fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a"},{"url":"https://git.kernel.org/stable/c/ad4e908096dff97646f77b04e2e2825225e215f7"},{"url":"https://git.kernel.org/stable/c/788917ba77f5d69bd368c1d176ecceda346a2951"},{"url":"https://git.kernel.org/stable/c/79a3331ee436c8b1454f897d539606c9b5ebdf9f"},{"url":"https://git.kernel.org/stable/c/e2a7cee341986cb5b544a8286edc7fb0494c592e"},{"url":"https://git.kernel.org/stable/c/e0773ad25a34a49aece176721c466cf214e02222"},{"url":"https://git.kernel.org/stable/c/3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:06:56.138Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}