drm/lima: call drm_mm_init() with a valid allocation range
In the Linux kernel, the following vulnerability has been resolved: drm/lima: call drm_mm_init() with a valid allocation range lima_vm_create() is currently run before va_start and va_end are set up, meaning they are both 0. lima_vm_create() runs drm_mm_init() with them as arguments for the allocator, and if DRM_DEBUG_MM is enabled the DRM_MM_BUG_ON check in drm_mm_init then fires, as seen here on exynos4412-odroid-u2: [ 1.736297] ------------[ cut here ]------------ [ 1.740370] kernel BUG at drivers/gpu/drm/drm_mm.c:931! [ 1.745574] Internal error: Oops - BUG: 0 [#1] SMP ARM [ 1.750697] Modules linked in: [ 1.753734] CPU: 0 UID: 0 PID: 41 Comm: kworker/u16:1 Not tainted 7.0.10-postmarketos-exynos4 #11 PREEMPT [ 1.763372] Hardware name: Samsung Exynos (Flattened Device Tree) [ 1.769446] Workqueue: events_unbound deferred_probe_work_func [ 1.775261] PC is at drm_mm_init+0x9c/0xa4 [ 1.779339] LR is at lima_vm_create+0x144/0x17c [ ... ] Fix the issue by moving the lima_vm_create() call after va_start and va_end are set up.
CVE-2026-93183
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-93183
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "af1f276d50c9d7ebcd25770f358ca503a89d96d7",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "fd6bc5f1d6b54047b06b82bab25a7e21e4b1c95a",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "ad4e908096dff97646f77b04e2e2825225e215f7",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "788917ba77f5d69bd368c1d176ecceda346a2951",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "79a3331ee436c8b1454f897d539606c9b5ebdf9f",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "e2a7cee341986cb5b544a8286edc7fb0494c592e",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "e0773ad25a34a49aece176721c466cf214e02222",
"versionType": "git"
},
{
"status": "affected",
"version": "a1d2a6339961efc078208dc3b2f006e9e9a8e119",
"lessThan": "3b3bce4a692ac60d9f4a341e6b597dd1fd0a28f9",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/lima/lima_device.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/lima/lima_device.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93183
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37893 · Revision 1
- Added to Heist Feed
- Publisher date