{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50368", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:53:06.995Z", "datePublished": "2025-09-17T14:56:24.102Z", "dateUpdated": "2026-08-05T08:58:27.178Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:58:27.178Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dsi: fix memory corruption with too many bridges\n\nAdd the missing sanity check on the bridge counter to avoid corrupting\ndata beyond the fixed-sized bridge array in case there are ever more\nthan eight bridges.\n\nPatchwork: https://patchwork.freedesktop.org/patch/502668/" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The OOB write occurs only in msm_dsi_modeset_init during local MSM DRM aggregate bind (msm_drm_bind → MDP4/MDP5/DPU kms_init → msm_dsi_modeset_init), reached via boot OF probe, module load, or sysfs bind—not via network or adjacent-link input.\nAC:L - Once num_bridges reaches MAX_BRIDGES (8)—including via coexisting probe-deferral/rebind cycles on Qualcomm MSM display stacks—the unchecked bridges[num_bridges++] store of msm_dsi->bridge is deterministic with no race or attacker-uncontrollable memory layout.\nPR:L - Forcing rebind via sysfs/module reload needs CAP_SYS_ADMIN/CAP_SYS_MODULE, but the same modeset_init path also runs on ordinary boot-time probe of Qualcomm MSM/Android display components with no credentials; resolving that ambiguity toward higher severity gives Low.\nUI:N - Probe/bind and driver-core rebind of the MSM DSI component run entirely in kernel context; no victim mount, file open, or other interactive action is required.\nS:U - The corruption is of host-kernel msm_drm_private fields (bridges[] into adjacent vram metadata) within the same OS security authority; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - The missing bounds check is an out-of-bounds write of a drm_bridge pointer past bridges[MAX_BRIDGES] into adjacent kernel state (vram size/paddr/drm_mm), which per guidance yields High confidentiality via memory-corruption disclosure primitives.\nI:H - Out-of-bounds writes of kernel pointers into adjacent msm_drm_private VRAM/drm_mm fields are integrity High: they corrupt allocator/VRAM metadata and enable write/control-flow hijack primitives beyond a pure crash.\nA:H - Corrupting vram metadata and overrunning the fixed bridges array predictably causes kernel oops/panic or hang on subsequent DRM teardown or VRAM use, which is Availability High." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/msm/dsi/dsi.c" ], "versions": [ { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "4e5587cddb334f7a5bb1c49ea8bbfc966fafe1b8", "status": "affected", "versionType": "git" }, { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "f649ed0e1b7a1545f8e27267d3c468b3cb222ece", "status": "affected", "versionType": "git" }, { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "21c4679af01f1027cb559330c2e7d410089b2b36", "status": "affected", "versionType": "git" }, { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "9f035d1fb30648fe70ee01627eb131c56d699b35", "status": "affected", "versionType": "git" }, { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "e83b354890a3c1d5256162f87a6cc38c47ae7f20", "status": "affected", "versionType": "git" }, { "version": "a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e", "lessThan": "2e786eb2f9cebb07e317226b60054df510b60c65", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/msm/dsi/dsi.c" ], "versions": [ { "version": "4.1", "status": "affected" }, { "version": "0", "lessThan": "4.1", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.264", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.223", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.153", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.77", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.7", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "4.19.264" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.4.223" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.10.153" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "5.15.77" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.0.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4e5587cddb334f7a5bb1c49ea8bbfc966fafe1b8" }, { "url": "https://git.kernel.org/stable/c/f649ed0e1b7a1545f8e27267d3c468b3cb222ece" }, { "url": "https://git.kernel.org/stable/c/21c4679af01f1027cb559330c2e7d410089b2b36" }, { "url": "https://git.kernel.org/stable/c/9f035d1fb30648fe70ee01627eb131c56d699b35" }, { "url": "https://git.kernel.org/stable/c/e83b354890a3c1d5256162f87a6cc38c47ae7f20" }, { "url": "https://git.kernel.org/stable/c/2e786eb2f9cebb07e317226b60054df510b60c65" } ], "title": "drm/msm/dsi: fix memory corruption with too many bridges", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-50368", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-01-14T18:35:26.283766Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:42:59.501Z" } } ] } }